More Power By Design

Increase system efficiency and reduce regulatory approval time through fast, accurate solar-plus-storage designs for commercial and utility projects, and large-scale residential.

Project Development Services

SepiSolar can fully develop your solar and storage projects or support other EPCs and developers. We perform a range of supplementary services to streamline installation, interconnection applications, and more.

Technical Consulting

SepiSolar’s offers a variety of solar and energy storage consulting services for developers, EPCs, OEMs, and contractors. Learn more about our solar and energy storage financial modeling, technical consulting, and operations consulting.

Solar Design & Engineering

SepiSolar provides complete permit-ready solar design packages for all sectors of the solar industry. Learn more about our solar design and solar engineering services for commercial, industrial, agricultural, utility, microgrid, energy storage applications and large-scale residential.

Expert Witness Service

Expert Witness

SepiSolar provides expert witness and case review services for construction law and civil litigation firms representing plaintiffs and defense. We support discovery, analysis, and fact-finding for projects that result of a financial loss, technical failure, or contractual claim. Find an Expert Witness or learn more today.

Training & Certifications

SepiSolar is a registered NABCEP training provider. We offer a variety of online courses and customized team training on a range of solar and energy storage subjects. Learn more about our current SepiAcademy courses and schedules.

Solar Engineering in action

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Tell us how we can help.


CA Small Business Enterprise

Certification ID:

Bidder/Supplier ID:

NAICS Codes:
541330 – Engineering services
541340 – Drafting services
541490 – Other specialized design services
541618 – Other management consulting services
541690 – Other scientific and technical consulting services
541990 – All other professional, scientific, and technical services

D-U-N-S number:

811024, 81101701, 81101516, 81101604, 43232614, 81101505

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