Battery Engineering Expert Witnesses: 1

Mr. Joshua Weiner, NABCEP, is a Solar Expert Witness with over 20 years of experience in policy, technology, sales contracts, project finance, permits and entitlements, project development and construction, engineering and project management, data acquisition and analysis that commonly apply to renewable energy and energy storage projects in residential, commercial, industrial, utility-scale markets, and energy storage.

Before founding SepiSolar, Mr. Weiner developed grid-connected energy storage and micro-grid projects with NRG's Station A R&D team (2015-2019) and NEXTracker's integrated energy storage program, where he played many roles in the development of solar and energy storage products and services, including design, engineering, business, policy, project, product, hardware, and software development. 

Litigation Support: Mr. Weiner brings his experience teaching courses through the UC Berkeley extension program, SepiAcademy to aid attorneys, plaintiffs, defendants, and judges in understanding the complex nuances of construction, technology, and policy of the solar and energy storage industries.

Areas of Expertise

View Joshua Weiner's Business Consultant Profile.