Welcome to SepiSolar, where we uphold the integrity of the solar industry by providing construction, civil, and patent litigation firms with case review and expert witness services. As fervent advocates for sustainable energy, we have positioned ourselves as the premier expert witness for solar-related cases. Our commitment to transparency, ethical practices, and cutting-edge knowledge has made us a trusted authority in the field.
THE SOLAR EXPERTS
Bodies of Law
Patent
Civil
Construction
How We Contribute
Josh Weiner, CEO
Experience
CEO, SepiSolar
Feb 2009 – Present (15 years+)
SepiSolar is a solar PV and storage design and engineering company that specializes in supporting solar EPC’s, contractors, developers, and installers. SepiSolar’s design team focuses on residential, commercial, and utility-scale system design and engineering, as well as product design consulting to ensure new products meet NEC, UL ratings, and applicable codes. Our team comprises of NABCEP-certified professionals so that you know you’re getting the industry experience you need to install systems as efficiently as possible.
Director of Storage Integration, Nextracker Inc.
Jul 2015 – 2019 (4 years 6 months)
Providing technology due diligence, business development, project development, and program management to the new products team.
Director of Engineering/Engineering Consultant, NRG Energy
Feb 2013 – Feb 2015 (2 years 1 month)
Supported NRG’s transition as Director of Engineering from SunCap to Residential Solar Solutions, and eventually to NRG Home Solar through the acquisition of Roof Diagnostics Solar. Created policies and procedures for technical underwriting and scaling the Engineering department’s tools, staffing, and resources to support lease sales volumes of $10M+ per month. Post-September 2014, continue to serve as Engineering & Technology Consultant and subject matter expert for technical due diligence efforts with new technologies, products / applications, markets, and investors.
Engineering Consultant, ENGIE Storage
Jan 2009 – Jul 2013 (4 years 7 months)
Helped to secure DOE funding for R&D in 2009. Provided complete, turnkey design & engineering of all projects deployed until 2013. Also provided project management, technology consulting, business development, sales / pro-forma modeling, product development / UL certification, among many other roles to bring energy storage products from conception to commercialization.
Instructor, University of California, Berkeley
Jan 2010 – Jun 2010 (6 months)
Created and developed course curricula (including training workshops, seminars, final projects, etc.) for students of the UC Berkeley Extension program for the “Advanced PV System Design and Project Management” course. Taught classes of 10-30 students in solar PV system design, engineering, development, and project management.
Engineering Manager, Akeena Solar
May 2006 – Feb 2009 (2 years 10 months)
Designed and engineered solar installations and plans to meet current Codes and standards for residential and commercial photovoltaic installations. Duties included obtaining required permits and assisting installations and inspections with engineering support. Provided engineering support to Sales. Also assisted several municipalities to develop streamlined permitting procedures for photovoltaic permits. Presented new products and standards of workmanship to local municipalities. Assisted in the management and coordination of designs and engineering procedures with headquarters, existing remote offices, and new regional offices. Developed and implemented engineering policies, procedures, quality control, and was the sole point-of-contact for the Engineering department. Served as manager of Engineering, reporting directly to the CEO, and managed/monitored the work of 11 design engineers.
Josh Weiner, CEO
EXPERIENCE
CEO, SepiSolar
Feb 2009 – Present (15 years+)
SepiSolar is a solar PV and storage design and engineering company that specializes in supporting solar EPC’s, contractors, developers, and installers. SepiSolar’s design team focuses on residential, commercial, and utility-scale system design and engineering, as well as product design consulting to ensure new products meet NEC, UL ratings, and applicable codes. Our team comprises of NABCEP-certified professionals so that you know you’re getting the industry experience you need to install systems as efficiently as possible.
Director of Storage Integration, Nextracker Inc.
Jul 2015 – 2019 (4 years 6 months)
Providing technology due diligence, business development, project development, and program management to the new products team.
QUALIFICATIONS
LICENSES & CERTIFICATIONS
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