Vice President of Photovoltaic Energy Storage Association

President: Lyle Rawlings – Advanced Solar Products Vice President (New Jersey): Josh Lewin, Helios Solar Energy Vice President (Pennsylvania): Ron Celentano – Celentano Energy Services Vice Presid...
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HOME / Vice President of Photovoltaic Energy Storage Association - Williamson Battery Technologies

Sohan Das

I lead a team of over 200 professionals who provide innovative and sustainable solutions for solar, substation and energy storage projects across the U.S.

Board of Directors 2024 – Welcome to MSSIA – Mid-Atlantic Solar

Vice President (New Jersey): Josh Lewin, Helios Solar Energy. Vice President (Pennsylvania): Ron Celentano – Celentano Energy Services. Vice President (Delaware): Andy Wall – Core Renewables.

Staff + Board — texas solar + storage association

Bri leads TSSA''s lobbying efforts in the Capitol, where she works to protect and promote the Texas solar power and battery storage industries. In her role, Bri manages the nearly 40-person TSSA Member

Executive Committee and Board of Directors

Comprised of the nation''s leading manufacturers, developers, installers, and services providers for solar and energy storage technologies, the Board provides market intelligence and strategic guidance to

Stacy J. Ettinger – SEIA

She has over 25 years of experience advising U.S. and foreign businesses on policy, regulatory, and legal issues related to industrial policy, trade, and investment. Prior to joining SEIA, Stacy was a

Sean Gallagher – SEIA

Sean Gallagher is SEIA''s Senior Vice President of Policy where he oversees all of SEIA''s policy work in states nationwide, as well as the organization''s federal legislative and regulatory policy efforts.

List of Presidents of Photovoltaic Energy Storage Association

Vice-President. The Polish Photovoltaic Association (PPA), established in 2019, is the largest industry organisation in Poland supporting the development of large-scale PV installations.

ESA Staff | Energy Storage Association

Learn more about the staff of the US Energy Storage Assocation and its leadership team.

Our Staff – SEIA

The association has earned numerous awards for its work and company culture and was named by the Washington Post as a 2023 and 2024 Top Workplace and a Best Nonprofit to Work For by the

CESA Board of Directors

In this role, she leads regulatory strategy and engagement such as the safety of electric generating facilities, including battery energy storage systems. With over 17 years in energy regulation, she has

Lithium & Solid-State Battery Systems

High-density LiFePO4 and solid-state battery modules with integrated BMS and advanced thermal runaway prevention – ideal for industrial peak shaving and renewable integration.

BTMS & Intelligent EMS

Active liquid-cooled thermal management combined with AI-driven energy management systems (EMS) for optimal battery performance, safety, and predictive analytics.

Rack Cabinets & Telecom Power

Modular energy storage rack cabinets (IP55) and telecom power systems (-48V DC) for data centers, telecom towers, and industrial backup applications.

S2C & UL9540A Containers

Solar-storage-charging (S2C) hubs and UL9540A certified containerized BESS (up to 5MWh) for utility-scale projects and microgrids.

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Contact Williamson Battery Technologies

We provide advanced lithium battery systems, solid-state storage, battery thermal management (BTMS), intelligent EMS, industrial rack cabinets, telecom power systems, solar-storage-charging (S2C) integration, and UL9540A certified containers for commercial, industrial, and renewable energy projects across Europe and globally.
From project consultation to after-sales support, our engineering team ensures safety, reliability, and performance.

Industriestraße 22, Gewerbegebiet Nord, 70469 Stuttgart, Baden-Württemberg, Germany

+49 711 984 2705  |  +49 160 947 8321  |  [email protected]