Executive Management

Johannes Rittershausen

Chief Executive Officer

As the Chief Executive Officer, Johannes is responsible for strategic planning, business development, investor relations, capital planning, and organizational stewardship at Convergent Energy + Power (Convergent).

Johannes co-founded Convergent in 2011 and has guided its growth from a two-person company into the leading independent developer of energy storage solutions in North America. Prior to Convergent, he spent five years at Southern California Edison, working as a senior project manager in corporate strategic planning and the electric vehicle readiness unit. He began his utilities career as an analyst in SCE’s power procurement business unit, performing functions in commodity trading, long-term resource planning, and ISO market settlements.

Johannes holds a BA from Pomona College and an MA from Georgetown University.

Frank Genova

Chief Operating and Financial Officer

Frank is responsible for technology evaluation, asset development, project and corporate finance, and corporate M&A. Frank helped found Convergent after 6 years working in project development and finance with Fisher Brothers and Plaza Construction, focusing on renewable development, renewable integration, complex mechanical and electrical system integration, and corporate strategy. Frank holds a BA from Villanova University in Mechanical Engineering and an MBA in Finance, Phi Kappa Phi from Fordham University’s Graduate School of Business.

Chris Streeter

Chief Information and Risk Officer

Chris is responsible for the quantitative analysis of energy markets and grid infrastructure, regulatory and compliance activities, and the design, production, deployment, and maintenance of software systems to optimize storage asset operations and financial returns.

Prior to joining Convergent, Chris spent 8 years as a strategy consultant, both as an independent contractor and as a member of the firm AltshulerGray, LLC, focusing on complex data analysis and developing / implementing evaluation frameworks to meet profit maximization and compliance targets.

Chris graduated with honors from Harvard University with an A.B. in Biology.

Ren Gaffney

General Counsel

As General Counsel at Convergent, Ren Gaffney (she/her and they/them) oversees and manages all legal and compliance functions of the business. Ren advises senior management and the board on governance and policy matters and plays a key role in the expansion of the company.

Ren brings over 11 years of experience in the fields of project finance, structured finance, power and infrastructure development, M&A, U.S. federal regulation, securities regulation, and economic development to the company. Ren has advised on over $2.8 billion of closed transactions across four continents in the power, energy, and infrastructure space.

Before joining Convergent, Ren served as Deputy General Counsel and Head of West and Central Africa Power and Infrastructure Advisory at CrossBoundary Group. Prior, Ren served as Assistant General Counsel for TerraForm Power and as an Associate in the law firm of Skadden, Arps, Slate, Meagher & Flom LLP’s Energy and Infrastructure Projects practice. Ren has lived and worked in Ethiopia, Ghana, Malaysia, Nigeria, Senegal, Sri Lanka, and Switzerland for investment facilitation and energy firms, nonprofits, the U.S. Department of State, UNHCR, and the World Bank Group.

Ren holds a juris doctorate from Georgetown University Law Center, an MA in International Affairs from the Graduate Institute of International and Development Studies in Geneva, and a BA in International Relations and Philosophy from Wellesley College.

Ren is a member of the National LGBT Bar Association and was a founding Steering Committee member of Trans Legal Advocates of Washington DC.

Mariko McDonagh Meier

Chief Strategy Officer

Mariko McDonagh Meier is the Chief Strategy Officer at Convergent Energy + Power, which has over a decade of experience financing and managing all aspects of the energy storage development cycle to create long-term value for its customers, investors, and broader society. As Chief Strategy Officer, Mariko is responsible for identifying and commercializing new products and markets as well as coordinating commercial opportunities across Convergent’s business.

Immediately prior to joining Convergent, Mariko served as Chief Operating Officer for Mirah, a mental health care software company. She also spent a decade at Enel X (previously EnerNOC), at which she held several senior management positions across marketing, regulatory affairs and operations. In 2011, while working in Southern California Edison’s strategic planning group, Mariko co-wrote a white paper on the grid-scale applications of energy storage, which have significantly expanded since the paper’s publishing. Mariko began her career at McKinsey and Company, a consultancy, where she focused on cleantech clients.

Mariko holds a BA from Stanford University and an MBA from Harvard Business School. She lives in Boston, MA with her husband, two daughters, and three-legged cat.

Asset Management

David Nie

Senior Vice President, Asset Management

David is responsible for economic and financial evaluation of potential project opportunities, general quantitative sales support, wholesale and retail tariff evaluation, dispatch and algorithm development, and managing real-time operations.

Prior to joining Convergent, David worked at EnerNOC on the demand response team managing their portfolio in the PJM region. He has experience in day-to-day operations and long term strategy execution in capacity and energy markets.

David holds a BA from Dartmouth in Mathematics and Economics.

Avital Szulc

Vice President, Data Science and Machine Learning

Avital is responsible for leading the development and optimization of Convergent's real-time asset dispatch algorithms and their software integration.

Prior to leading Convergent's data science and machine learning efforts, Avital led the development of Convergent's Asset Management Platform, including its design, engineering, testing, and deployment.

Before joining Convergent, Avital worked as a product manager at A.F.Mensah, a distributed energy technology and development company. While at A.F. Mensah, Avital was responsible for the development of its asset management platform and prototyping of optimal asset dispatch algorithms.

Avital holds an M.S.E in Operations Research from Cornell University (Cornell Tech) and a B.S.E in Chemical Engineering from the University of Pennsylvania.

Allan Blanchard

Senior Analyst, Asset Management

Allan is responsible for the optimization and automation of real-time asset operations, dispatch and algorithm development, project and tariff evaluation, and quantitative sales support.

Prior to joining Convergent, Allan worked at Integrated Storage Technologies leading the analytics department with a focus on financial modelling and storage system optimizations that spanned a wide range of technologies and use cases. He has also spent five years working as a product engineer at Ambri, working to optimize and refine its storage technology. His work led to both patented and patent-pending innovations in battery chemistry and design.

Allan holds a BS in Material Science and Engineering from Massachusetts Institute of Technology.

Jol Dent

Senior Analyst, Asset Management

Jol is responsible for financial and performance modelling, techno-economic optimization, evaluation of storage dispatch strategies, EPC contract evaluation and performance testing, PV modelling and all aspects of quantitative analysis.

Jol has been working in energy and finance since 2002, providing the key financial and performance evaluation for projects totalling many hundreds of megawatts. He has over a decade of experience in dispatchable renewable energy, most recently with SolarReserve and Invenergy, and has worked on projects in Europe, Africa, Asia, Australia, and the Americas. In addition to broad experience in project finance, he also has expertise in designing and operating renewable energy storage projects, and has co-authored multiple papers on dispatch optimization in collaboration with NREL and the Colorado School of Mines.

Jol holds a BA in Business Economics from Exeter University and has studied finance with Euromoney in London and the Chartered Institute of Management Accountants.

Surina Diddi

Senior Associate, Asset Management

Surina is responsible for the economic and financial evaluation of potential growth opportunities, market analysis, real-time asset operations, and aspects of the investment pipeline.

Previously, Surina spent several years in energy finance as an Equity Research Associate at UBS and then in investment banking at Lazard / Scotiabank. In these roles, she conducted strategic analysis, modeling, and investment due diligence for projects across the power, infrastructure, and renewables space. She also worked for Agriculture Capital, a $900 million middle-market private equity fund focused on real asset investments in the agriculture and sustainability space.

Surina holds a BA in Economics from Wellesley College and has taken classes at MIT’s Sloan School of Management. Surina was an Energy Fellow at the Madeleine Albright Institute for Global Affairs, is a CFA Level II candidate, and speaks five languages.

Christian Gould


Christian works on rotating projects and functions across the company, providing support in business development, customer engagement and marketing, project execution, asset management, financial optimization, and regulatory and policy development.

Prior to joining Convergent, Christian interned at Sandia National Laboratories where he focused on modeling solar and geothermal heating projects. He also conducted undergraduate research on lithium-ion batteries and co-authored a research paper in the Journal of The Electrochemical Society.

Christian holds a BS in Chemical Engineering from Columbia University.

Noor Semaan

Rotational Analyst

Noor supports the company with financial modeling and analysis for solar and storage projects. In addition, she helps conduct research on specific markets to determine potential opportunities.

Prior to joining Convergent, Noor interned at multiple companies in the renewable energy space. Most recently, she interned at Glint Solar as a member of their business development team. In this role, she identified and evaluated potential competitors, customers, and partners as well as analyzed the worldwide solar development market to supplement the company’s sales strategy.

Noor holds a MS in Innovation and Management and a BS in Chemical and Biological Engineering from Tufts University.

Business Development

Adam Green

Senior Vice President, Business Development

Adam is responsible for the team configuring, contracting, siting, permitting, and closing storage and solar projects on the utility side of the meter throughout North America.

Adam has over eight years of experience with storage and solar, and has developed hundreds of megawatts of projects in three continents, most recently as Director of Development at SolarReserve. His areas of expertise include real estate and land use, contracting, solar performance modeling, and local community relations. He has also written technical papers on the capabilities of solar and storage, and he holds two patents.

Adam graduated Phi Beta Kappa and Magna Cum Laude from Brown University with an honors concentration of his own design entitled “Rationality and Decision Making,” and received his MBA from the UCLA Anderson School of Management.

Toby Tiktinsky

Senior Vice President, Business Development

Toby is responsible for originating, negotiating, closing, and developing behind-the-meter projects with commercial and industrial clients, while supporting the firm’s overall business development strategy.

Toby comes to Convergent with 15 years of experience in project development, environmental policy and markets, and B2B sales and consulting. As Pakistan Country Director for EcoSecurities, Toby established the country’s first private carbon finance company and helped to finance distributed generation and energy efficiency projects. More recently, Toby started a renewable energy origination and brokerage platform where he partnered with leading solar developers to develop projects for retailers. Previously, Toby served as Director of Business Development for BrightFarms, a venture-backed start-up that adapted the power purchase agreement contracting model to finance and build controlled environment agriculture facilities.

Toby graduated with honors from the University of San Francisco and holds an MSc from the London School of Economics.

Jim Tarpey

Project Executive

Jim is responsible for providing technical guidance and expert regulatory support on behalf of Convergent’s projects.

Jim comes to Convergent with 45 years of engineering and operations experience in gas and electric systems. At the end of 2011, he retired from Orange and Rockland Utilities (a Consolidated Edison company) as Vice President, Operations. He has been involved in corporate strategies, long range planning, service reliability initiatives, Smart Grid, emergency management, underground and overhead systems, integrated planning, project management, RTO participation, risk management and mitigation, demand side management, distributed generation, power quality, regulatory affairs, capital and O&M budgeting, cost containment, labor relations, safety, environmental, emerging technologies, and research and development.

Jim holds a BSEE from Worcester Polytechnic Institute and an MSEE from the New Jersey Institute of Technology and is a registered Professional Engineer.

Christopher Kuhl

Vice President, Business Development

Chris is an over 20-year veteran of the power distribution, battery, energy storage system, and micro grid technology space. At Convergent, Chris is working with electric cooperatives and municipal utilities across the Northern and Western U.S. to originate storage, or solar-plus-storage solutions to help them meet cost-of-service, reliability, and sustainability goals.

Most recently, Chris worked for Greensmith/Wärtsilä, a leading energy storage system integrator and market-facing software provider. There, Chris worked with IOU’s, IPP’s and other utility-sector providers for energy storage, micro grids and hybrid generation projects. Prior, Chris was the Director of Business Development for Energy Storage for Edison Energy, the Chicago-based deregulated project development unit of Edison International. The primary focus of the unit was to deploy distributed resources for C&I behind-the-meter locations and develop distribution connected, utility-scale projects for rural electric co-ops.

Chris also has expertise in global market development and product launch experience from his roles at OEM’s like Johnson Controls, Eaton Electrical, Northern Power Systems and EnSync Energy.

Chris earned his BA in Finance and an MBA from the University of Wisconsin–Milwaukee.

Laura Meilander

Vice President, Business Development

Laura is responsible for originating, negotiating and closing energy storage projects.

She has over 15 years of experience in the utility and energy industry. She has worked in the power origination groups at Constellation Energy, Deutsche Bank and JP Morgan where she developed, negotiated, and executed structured wholesale energy transactions in PJM, MISO, ERCOT and the Northeast. She has also worked at Wood Mackenzie on the business development and research teams focusing on North American gas and power markets.

Laura holds a bachelor’s degree in chemical engineering from Rice University.

Matt Duffy

Vice President, Business Development

Matt is responsible for originating, negotiating, and closing solar and storage projects. He has over 18 years of experience in the energy industry and spent the past 12 years focused on sustainable energy solutions.

Prior to his work in the energy sector, Matt had a 10-year career in the United States Marine Corps, serving as an infantry officer. Following his service, he worked with EDPR and BP Wind developing wind farms. At EDPR and BP Wind, Matt originated over $1Bn in wind energy contracts and developed over 1GW of wind projects/wind and storage projects.

Matt holds a BA from the College of the Holy Cross and an MBA from the Thunderbird School of International Management. Matt resides in Houston, TX.

Steve McKenery

Vice President, Business Development

Steve brings more than 35 years of extensive power generation, renewable energy and energy storage experience managing the development, financing, engineering, and construction of more than 500 energy projects around the globe with a total capacity in excess of 9 GW.

After starting his career in the nuclear power industry with Bechtel Power, Mr. McKenery spent 16 years with Southern California Edison in various capacities, including as Project Manager of the Balsam Meadows 200 MW Pumped Storage Hydroelectric Project (the original flow battery).

Steve jumped into the renewables sector in 1998 and has not looked back. He has driven business development, sales, and marketing efforts at early PV pioneers’ PowerLight and SPG Solar and led global sales efforts for semiconductor giant TSMCs’ foray into PV as a CIGS module manufacturer. In 2015, he joined GE’s battery storage system integration efforts targeting PV and wind developers, and later led energy storage development at 8minute Solar Energy.

Steve holds an MBA from the Drucker School of Management - Claremont Graduate University and a BS in Civil Engineering from Cal Poly, San Luis Obispo.

Tremor Temchin

Vice President, Business Development

Tremor is active in all phases of the project development cycle including opportunity identification, pre-development / construction, and the continued operations and maintenance of company assets.

Prior to joining Convergent, Tremor served as the Founder and Executive Director of the Rotary Pacific Water for Life Foundation, a non-governmental organization based in Fiji that builds healthier communities by providing sustainable access to safer drinking water and sanitation in the Pacific Island Nations. He also worked as a writer for various television series and assisted in the production of several feature films.

Tremor graduated with honors from Pomona College and holds an M.A. from the University of the South Pacific’s Pacific Centre for Environment and Sustainable Development.

Eric Sage

Director, Commercial Proposals

With over 25 years of professional experience in proposal management and marketing fields, Eric brings a 360-degree understanding of creating and presenting winning content in a format, tone, language, and aesthetic that will best speak to its intended audience.

Prior to joining Convergent, Eric led the proposal management team at Travel and Transport, Inc. where he focused on the company’s most complex global bids in the financial, legal, and high fashion sectors, accounting for over $450 million in new business wins.

Eric’s overall philosophy is to “begin with the end in mind” and to frame everything within a “win-win” mentality that works to deliver mutually beneficial solutions in relationships and trust and goodwill with prospects and clients.

Eric graduated from the Fashion Institute of Technology with a degree in Advertising Design.

Peter Triassi

Manager, Business Development

Peter is responsible for commercial engagement and project contracting for Convergent’s commercial and industrial market segment.

Prior to joining Convergent, Peter served as Project Developer at Soventix Canada where he undertook origination and development activities on a 160 MW solar project portfolio. He supported the company in establishing a market presence in the province of Alberta, from initial site selection through RFP submission.

Peter holds a BA from Concordia University and an MSc Renewable Energy with distinction from the University of Reading.

Ruth Lind

Business Development Manager

Ruth supports the sales team with originating behind-the-meter projects in the U.S. and Canada.

Prior to joining Convergent, Ruth worked at Piper Maddox a renewable energy driven recruitment company where she focused on new client engagement and headhunting activities. In particular, Ruth led the build-out of an energy storage industry team and has spent the past two years working within the sector. Given her background, she has already worked directly with many of the industry’s leading manufacturers and developers.

Ruth holds a BA (Honors) from the University of St Andrews in Scotland, UK.

Danielle Zurek

Business Development Associate

Danielle supports origination for behind-the-meter projects in the U.S. and Canada.

Prior to joining Convergent, Danielle was a sales lead recruiter at Spencer Ogden, an energy and infrastructure recruitment firm. There, she specialized in construction within the commercial, residential and infrastructure market sector. Danielle was one of the first 15 employees at Spencer Ogden’s New York office, responsible for full lifecycle recruitment and negotiations and developing the construction market across the tri-state area. Danielle brings the ability to create strategic relationships across diverse markets to Convergent.

Danielle obtained her Bachelors of Business Administration in Human Resources from Baruch College, Zinklin School of Business and a Masters of Science in Business Management and Leadership.

Frank Tedesco

Senior Analyst, Business Development

Frank is responsible for analysis in support of originating, negotiating, and closing energy storage and solar projects on the utility side of the meter.

Frank has over ten years of experience in the energy and utility industry, operating in a broad array of roles. He has worked as a power and capacity trader with Con Edison, a Senior Business Analyst with PECO’s Smart Grid Analytics department, and a Senior IT Business Analyst with Customized Energy Solutions.

Frank graduated Cum Laude from Villanova University, with bachelor’s degrees in Finance and
Accounting and a minor in Real Estate.

GianPaula Hulten

Business Development Associate

GianPaula is an associate on the Business Development team where she supports the origination of behind-the-meter projects in the U.S. and Canada.

Prior to joining Convergent, GianPaula was a sales lead at Spencer Ogden, a recruitment consulting firm specialized in energy and infrastructure. There, she focused on engaging new clients within the infrastructure private equity space as well as headhunting top talent within the sector.

GianPaula holds a B.S. in Sustainable Community Development and an M.A. in Urban/Regional Planning from the University of Massachusetts in Amherst.

Michael Khorosh

Business Development Associate

Michael supports origination for behind-the-meter projects in the U.S. and Canada.

Prior to joining Convergent, Michael was an Account Executive at Vettery, an online talent marketplace disrupting the recruiting industry. Within six months, Michael moved from Sales Development Representative to Onboarding Representative to Account Executive. Ultimately, Michael was tasked with spearheading the development of the Toronto market where he took on cold leads and turned them into annual subscription clients.

Michael brings sales acumen and an unparalleled work ethic to Convergent. He has leveraged these talents within his family business, McDonald Paper Restaurant Supplies and Commercial Glass Partitions, throughout his career.

Michael obtained his B.S. in Information Sciences and Technology from Pennsylvania State University.

Steven Rakhmanskiy

Business Development Associate

Steven Rakhmanskiy supports Convergent’s business development team by identifying and curating potential new behind-the meter-projects in the United States.

Prior to joining Convergent, Steven was a Senior Sales Representative at HomeAdvisor, a lead generation software company for contractors. At HomeAdvisor, Steven focused on new client engagement, acquisition, and retention as well as re-enrollment of past clients.

Steven Holds a Business Degree from CUNY-Brooklyn College.

Alex Rosen

Rotational Analyst

Alex works on rotating projects and functions across the company, providing support in business development, customer engagement and marketing, legal operations, and asset management. Alex is presently focused on supporting broader strategic, operational, and marketing objectives.

Prior to joining Convergent, Alex interned at Ladder Capital, a New York City based real estate investment trust, and gained entrepreneurial experience working for a student led startup developing solar microgrids for socially motivated applications.

Alex holds a BA in economics from Pomona College.


Derek Oosterman

Senior Vice President, Strategic Projects

Derek is responsible for all property-related aspects of Convergent’s business lines, including the identification, acquisition, development, and ongoing management of energy storage asset locations throughout North America including greenfields, brownfields, and commercial and industrial properties.

He has fifteen years of experience in the real estate sector, including extensive work in the acquisition, management, and disposition of commercial real estate debt and assets, with a focus on distress. He has advised builders, developers, investment managers and government entities on strategic land use decisions, with particular emphasis on mixed-use, urban/suburban, residential-led regeneration.

Derek holds a BA in Economics and International Relations from Pomona College and an MBA with emphasis in Finance and Real Estate from the UCLA Anderson School of Management.

Kate Siskel

Vice President, Marketing

Kate is responsible for sharing Convergent's story across multiple platforms in a dynamic, inspiring way.

Kate comes to Convergent with over a decade of marketing and communications experience and a passion for swaying hearts and minds through powerful storytelling. Most recently, she drove marketing strategies and influencer engagement to increase brand awareness at the national nonprofit the Alliance for a Healthier Generation. Prior, Kate owned all marketing and communications efforts at BrightFarms, an urban agriculture start-up. There, she led a team to rebrand the company and secured strategic national and local media placements that generated millions of impressions and directly impacted business development goals.

Kate holds a BA from Yale University and an MA from New York University.

Peter Cavan

Director of Market Development

Peter is responsible for go-to-market strategy and execution in Convergent's greenfield markets.

Prior to joining Convergent, Peter was manager of regulatory affairs at Centrica Business Solutions, where he led North American policy advocacy across demand response, solar and storage, and cross-cutting DER issues. His priorities included fair wholesale market access (arguing for 841/2222 at FERC and implementing at ISOs) and state-level support for clean and distributed energy.

Peter holds a Masters in Management from the University of British Columbia and a BA Hons in Philosophy, Politics & Economics from the University of Durham.

Nick Erdogan

Senior Manager, Digital Marketing

Nick is responsible for driving digital marketing strategies and tactics that increase brand engagement and awareness. He is also responsible for optimizing the performance of both paid and digital marketing channels.

Nick has spent the last decade engaging audiences across a variety of industries including oil and gas, renewable energy, public safety, education, and more. Nick specializes in finding new and creative ways to reach audiences online and connect them with solutions that help them live or work more efficiently. Most recently, at Learning Sciences International, he led the strategy to reach and connect K12 educators with professional development opportunities they needed to navigate the many challenges of teaching during a pandemic. Before that, Nick was the senior project manager for a joint family health and wellness initiative between Kohl’s and the national nonprofit, Alliance for a Healthier Generation.

Nick holds a BBA in Marketing from Northeastern State University.

Engineering, Procurement, Construction, and Operations

Robin Gray

Senior Vice President, Engineering and Project Development

As Senior Vice President, Engineering and Project Development, Robin leads the team responsible for engineering, procurement, construction, and the ongoing maintenance of Convergent's storage, solar-plus-storage, and solar assets. Robin is responsible for the development and design of new assets and manages all all aspects of project execution, from scheduling, budgeting, and supplier management to permitting and interconnection coordination. In addition, Robin manages Convergent's supplier relationships and advises the business on the latest battery storage technologies and safety measures.

Robin came to Convergent with over 15 years of engineering and project execution experience including 10 years of direct utility experience with Consolidated Edison of NY. During Robin’s time with Con Edison, he was responsible for the execution of large-scale capital projects including the design and project management of Con Edison’s first energy storage asset. At Con Edison, Robin was also responsible for the interconnection of customer-owned medium voltage substation and Distributed Energy Resource (DER) equipment. As a subject matter expert for utility Distributed Generation (DG) interconnections, Robin spent several years working with the IEEE 1547 Distributed Generation Interconnection Standards Working Group to standardize the interconnection process of DG assets. He is currently an industry core representative to the New York State Interconnection Technical Working Group.

Robin holds a Bachelor of Engineering (Hons) degree in Electrical and Electronic Engineering from the University of Manchester, Manchester, England, UK.

Derek Longo

Vice President, Project Development

Derek is responsible for all phases of project execution including technical coordination, supplier oversight and expediting, project budgeting, installation, and commissioning of project equipment. He also provides technical support to Convergent’s sales team in identifying and validating new project opportunities.

Derek has 8+ years of industrial project development and execution experience. Prior to joining Convergent, he served as a Field Engineer and Project Manager for FLSmidth Inc.’s Cement and Minerals Projects divisions. As a Field Engineer, he was stationed on site in order to troubleshoot the electro-mechanical hurdles during the installation and commissioning of company equipment. As a Project Manager, he managed budget and schedule from design to commissioning.

Derek graduated from Lehigh University with a BSc. in Mechanical Engineering.

Simi Falase

Lead Project Engineer, Project Development

Simi is responsible for high level system design including interconnection design activities on active projects as well as engaging and managing external consultants for detailed designs, applications and studies. She also provides technical support to Convergent’s sales team in identifying and validating new project opportunities.

Simi has over eight years of experience in electrical engineering, project engineering, and design engineering. Prior to joining Convergent, Simi worked as a Lead Electrical Engineer at Lectrus Corporation. There, she led a team of engineers and electrical designers on design projects for turnkey electrical substation houses and data centers. Prior, Simi worked at Cooper Crouse-Hinds (acquired by Eaton in 2012) as a Project Engineer responsible for full cycle project management and Flour Enterprises as a Design Engineer.

Simi holds a BS in Electrical Engineering from the University of Oklahoma.

Michel Menezes

Senior Project Manager, Project Development

Michel is responsible for planning, executing, monitoring, controlling and closing all phases of the project’s lifecycle, including technical coordination, supplier oversight and expediting,
project budgeting, installation, and commissioning of project equipment. He also provides
technical support to Convergent’s sales team in identifying and validating new project opportunities.

Michel has 5+ years of construction project management. Prior to joining Convergent, he served as Project Manager for BGIS in Toronto, Canada managing electrical, mechanical, and energy efficiency projects. Previously, he worked in the shipbuilding industry, designing and providing technical support during the construction of petroleum tanker ships.

Michel is a certified Project Management Professional (PMP®) and holds a bachelor’s degree in Electrical Engineering from Federal University of Pernambuco in Recife, Brazil. He also has a Project Management certificate from Centennial College in Toronto, Canada.

Sonny Sok

Senior Field Technician

Mario Titolo

Project Manager, Project Development

Mario is responsible for managing all aspects of a project’s lifecycle from initial feasibility to installation and commissioning. He manages the project schedules, budgets, and all necessary permitting and approval processes. He also delivers technical support to the sales team helping to identify and qualify new opportunities.

Mario has over three years of renewable energy project engineering and development experience. Prior to joining Convergent, he served as a Project Engineer for Safari Energy developing commercial and industrial Solar PV projects. As a Project Engineer, he worked on producing detailed electrical engineering drawings and managed projects from design to commissioning.

Mario holds a BS in Mechanical and Aerospace Engineering from Cornell University. He is also a NABCEP Certified PV Installation Professional.

Tom Yeager

Project Manager, Project Development

Tom manages all aspects of project execution including technical coordination, supplier oversight, budgeting, construction, and commissioning. He also provides technical support to Convergent’s sales team in identifying and qualifying new project opportunities.

Tom’s background in engineering encompasses a variety experiences , including performing hazard analysis of radioactive waste for the DOE, operating a nuclear power plant, and delivering custom HVAC equipment.

Tom holds a BS in Nuclear Engineering from Rensselaer Polytechnic University.

Carley Rowe

Rotational Analyst

Carley works on rotating projects and functions across the company, providing support across business development, customer engagement, marketing, project execution, asset management, financial optimization, and regulatory and policy development. Carley is presently focused on supporting the Engineering, Procurement, Construction, and Operations team.

Prior to joining Convergent, Carley worked at BlueWave Solar as a member of the Project Development and Interconnection teams. Her work focused on project permitting, interconnections, and solar agrivoltaic project execution.

Carley holds a BS in Mechanical Engineering with a minor in Philosophy from Northeastern University.

Project Development

Becky Koze

Senior Vice President, Development

Becky is responsible for early stage development activities, including land due diligence and acquisition, subdivision, environmental diligence and permitting, local community and regulatory agency engagement, along with managing a team of land developers and consultants.

Becky comes to Convergent with 20 years of experience in land development, distributed energy
resource development, and civil engineering. Before joining Convergent, Becky worked in renewable energy managing a team focused on early stage development activities. Prior, Becky worked in the engineering sector, focused on civil design.

Becky holds a BS in Civil Engineering from Rutgers School of Engineering. She is also a licensed Professional Engineering and Certified Professional in Erosion and Sediment Control.

Dave Wagner

Vice President, Business Development

Dave is responsible for originating, negotiating, closing and developing solar + storage projects.
Dave brings with him over 10 years of domestic and international utility-scale wind and solar
development experience. Prior to joining Convergent, Dave was with Apex Clean Energy and
SolarReserve where he managed the development of solar and wind projects throughout the U.S.,
Mexico, Central and South America, and the Caribbean. In all, Dave has managed the business
development, project initiation, acquisition, permitting and pre-construction process for over 1.5 GW of
wind and solar projects in a dozen countries throughout the world.

Dave holds a bachelor’s degree from the University of Illinois and resides in Des Moines, Iowa.

John Markley

Vice President, Business Development

John is responsible for managing the development of energy projects, which includes site assessment, negotiating and transacting real estate agreements, originating energy contracts, and securing land use permits.

John comes to Convergent with 25+ years of investment and project management experience. Prior to joining Convergent, he was a managing director for a New York based private equity firm making investments in commercial and residential real estate, media, and energy sector services. His experience also includes work as a software developer, managing a wide variety of projects and teams.

John holds a BS in Computer Science from the University of Arizona.

Stephanie Reyes

Senior Analyst

Stephanie works on rotating projects and functions across Convergent, providing support in business development, customer engagement and marketing, project execution, asset management, financial optimization, and regulatory and policy development.

Stephanie holds a B.A in Latin American Studies from Pomona College.

Kaylee LaChance


Kaylee supports early stages of solar and storage projects through site identification, due diligence, and analysis. She is also responsible for creating digital maps with geographic data to show the spatial distribution of various environmental constraints.

Prior to joining Convergent, Kaylee interned with the U.S. Environmental Protection Agency in the Office of Water OWOW (Office of Wetlands, Oceans, and Watersheds). She brings her experience with wetland delineation, permitting, and geographic research to Convergent.

Kaylee holds a Bachelor's degree in Environmental Studies from Dickinson College. While in school, she maintained a focus on environmental health and policy.


Sebastián Villaveces

Associate General Counsel

As Associate General Counsel at Convergent, Sebastián (he/him) supports all business units in the pursuit of advancing energy storage-focused solutions and company growth. Sebastián provides advice on general corporate matters and works closely with the broader team to support business development, asset development, project and corporate finance, and M&A activities for standalone storage, hybrid storage, and distributed generation solar projects.

Sebastián is committed advancing the clean energy transition and brings over a decade of experience practicing law as a transactional lawyer. Sebastián has worked on projects and transactions in 15 jurisdictions throughout the Americas, in the fields of project development, project finance, M&A, corporate finance and capital markets. Prior to joining Convergent, Sebastián served as Senior Associate in the Energy Transactions and Projects group at Vinson & Elkins LLP, as Senior Associate in the Projects group at Herbert Smith Freehills, as Counsel at New Fortress Energy, and as Associate at Cleary Gottlieb Steen & Hamilton LLP.

Sebastián holds a JD-equivalent degree from Universidad de los Andes in Colombia (his home country), a Master’s in Laws from Northwestern Pritzker School of Law and a Certificate in Business Administration from Northwestern Kellogg School of Management.

People Operations

Stephanie Iaboni

Senior Vice President, Head of People

Stephanie is responsible for the People strategy across the organization, focusing on the "human" in human capital. What that means is she helps us get and keep the best people, leading efforts for talent attraction, acquisition, performance management, leadership development, succession planning, engagement, and change management.

Stephanie believes in creating innovative solutions for complex talent challenges and utilizes her expertise to craft the right recipe of talent that will scale with our growth.

She comes to Convergent with over 15 years of experience in human resources, leadership, and talent initiatives. And prior to that she worked in the trenches in several startup environments, as well as a strategy consultant focusing on building structure and practices from scratch, refreshing stale initiatives, and introducing new and effective ways of approaching talent.

Stephanie has a master’s degree in Public Administration and when she’s not growing our team, she can be found at NY Rangers games, sampling Italian food or walking her two dogs.

Suehaily Reaves

People Operations Manager

As the People Operations Manager, Suehaily works on all people initiatives and is laser focused on overseeing payroll, managing and enriching benefits, and onboarding.

Prior to joining the team Suehaily spent the last 13 years in the tech industry with the last six years managing a wide range of People Operations duties for two sister tech and tech services companies. She believes a happy and engaged team member is the best team member and works to ensure we are both of those things.

Isabelli Figueiredo

Talent Acquisition Manager

Isabelli spearheads the recruitment efforts for Convergent as Talent Acquisition Manager.

Prior to joining Convergent, Isabelli was a Senior Financial Recruiter at Spencer Ogden, an energy-and infrastructure-focused recruitment firm. There, she worked on the finance team, specializing in renewable energy. Isabelli was one of the first 15 employees in NYC and was given the responsibility of building out the renewable energy finance market. Isabelli brings both market knowledge and industry connections to Convergent.

Isabelli obtained her Bachelor of Arts in Communications from the University at Albany, NY.


Sumeet Sikka

Senior Vice President, Controller

Sumeet is responsible for establishing and executing policies and internal controls over Convergent’s accounting and financial procedures to safeguard the company’s assets as well as protect the integrity of its financial data. Responsibilities include overseeing all accounting operations including financial close, preparation of financial statements, treasury, internal management reporting, compliance, budgeting and project management.

Sumeet joined Convergent with over 20 years of experience across a broad range of accounting/finance areas including financial/management reporting, ERP implementation, compliance, audit and taxation. Prior to joining Convergent, Sumeet served as an Assistant Controller at SUEZ where he was instrumental in overall internal control management, optimization of information systems and financial reporting. Prior to that, he held several senior management positions including Director at National Grid.

Sumeet holds a bachelor’s degree in accounting from NJCU. He is a Certified Public Accountant (CPA) in the state of NY and is also a member of the American Institute of Certified Public Accountants.

Li Chan

Senior Accountant

As a Senior Accountant, Li is responsible for various aspects of day-to-day general accounting, month-end close, and financial reporting.

Li joined Convergent with over a decade of experience in accounting, analytics, reconciliation and reporting. Prior to joining Convergent, Li spent five years with a company that invests in carrier-neutral data centers and provides colocation and peering services within the Real Estate Investment Trust (REIT) industry.

Li holds a bachelor’s degree in accounting from Berkeley College.

Mario Acuna

Staff Accountant

As a Staff Accountant, Mario is responsible for the accounts payable cycle and the preparation of the annual audit.

Mario joined Convergent with over five years of accounting experience as an Accounts Payable Coordinator and Staff Accountant in the hospitality, public relations, and information services sectors. Mario has assisted in the monthly, quarterly, and yearly accounting close periods for accounts payable, accounts receivable, and general accounting. He also has experience with numerous ERP implementations.

Mario holds a BA in Business Administration with a concentration in Accounting & Management.


Lawrence Tsang

Executive Advisor, Strategy

Lawrence works with the executive management team on strategic planning efforts. He is responsible for leading the execution of new business development initiatives and M&A activities to bring in new capabilities. He developed Convergent’s solar and storage business and continues to engage with utilities on project development.

Lawrence has over 10 years of experience in global energy and policy development and project finance. He was previously the Director of Global Strategy and Project Finance at OCI Solar Power where he successfully developed 450 MWs of solar in Texas. In this capacity, he led all capital market raises for projects and managed a global team to develop market analysis and business cases for high-potential growth opportunities in strategic markets (including Africa, China, Mexico, and India). Prior, he was a management and strategy consultant at Booz Allen Hamilton.

Lawrence holds a BSc. in Biology from Concordia University (Canada) and a Masters in Environmental Management from Harvard University.

Andy Israelson

Vice President, Business Development

Andy is responsible spearheading the company’s M&A activities and crafting the firm’s strategy for winning RFP-based opportunities.

Andy has eight years of experience in various sub-sectors of the cleantech industry in finance, strategy, M&A, and project management positions. Prior to Convergent, Andy served as an Investments Analyst and a Development Manager at E.ON Climate and Renewables focusing on solar and storage technologies.

Andy holds a BS in Economics from Lehigh University and an MBA from the McCombs School of Business at The University of Texas at Austin.

Van Neils


Van works on rotating projects and functions across the company, providing support in business development, customer engagement and marketing, project execution, asset management, financial optimization, and regulatory and policy development.

Prior to joining Convergent, Van interned at Consolidated Edison as a member of their Energy Storage team. His work focused on the development of utility-owned batteries and direct current fast charging electric vehicle infrastructure.

Van holds a BA in Sustainable Development from Columbia University.