Get permit-ready plans across all 50 states
SepiSolar’s NABCEP certified solar engineers design systems for all types of commercial & industrial, utility-scale, storage, microgrid and large-scale residential applications.
With SepiSolar’s design & engineering service, you get:
- Expert designs by experienced solar engineers
- Direct communication with your designer
- NABCEP certified designers
- Complete PV plan sets
With over 4.5 GW and 10,000 engineered solar designs since 2009, turn to your SepiSolar engineer for your next solar project and experience how we provide more “power by design”. ®
Get started by requesting a free design & engineering estimate for your solar project(s) today.
Request a free estimate for your solar design today
New to SepiSolar? Complete this form to get your free design quote.
Using SepiSolar for designing and engineering Swell Energy’s solar-plus-storage systems was a no-brainer. Storage is complicated, so we wanted to work with a team of U.S.-based quality engineers who could speak ‘fluent storage’ and get out accurate plan sets quickly and with minimal AHJ revisions.”
Andrew Meyer,
Co-Founder, Swell Energy
The price of failure with defects on a finished project is severe, and it’s simply not worth trying to save a few dollars upfront only to be bitten down the road with failures. That’s why we partner with SepiSolar for all of our engineering and design needs for solar and storage.”
Ben Lochtenberg,
CEO of Xero Solar
Using SepiSolar for designing and engineering Swell Energy’s solar-plus-storage systems was a no-brainer. Storage is complicated, so we wanted to work with a team of U.S.-based quality engineers who could speak ‘fluent storage’ and get out accurate plan sets quickly and with minimal AHJ revisions.”
Andrew Meyer,
Co-Founder, Swell Energy
Sunlight Electric has been working with SepiSolar since 2012, and they’re our trusted partner for quality solar engineering work. Their engineering team is current on code, best practices, and their work product is well-received by AHJs.”
Rob Erlichman,
Founder of Sunlight Electric
SepiSolar has been providing us with commercial solar engineering services for the last three years, producing our construction drawings and providing us with useful insight to difficult questions that we run into. We are more than happy with the results, as well as with the relationship that we have with them and will not only continue to use them, but would recommend them to anyone.”
Eric Virkler, P.E.,
Director of Commercial Solar, Earthlight Technologies
We submitted our RFP proposal to the utility today, and I wanted to thank SepiSolar for the excellent service you provided. Your ability to provide a detailed engineering design on a tight turnaround time was impressive. Your input helped us secure an updated solar design that met all of the RFP’s requirements. We look forward to working with SepiSolar again on future projects.”
Travis Stowers,
Power System Application Engineer, Doosan GridTech
Why Solar Professionals Use SepiSolar
Solar Expertise: Each of our designers are NABCEP certified and design and engineer solar applications for over 1,300 solar professionals across the globe.
Our Process. Your Success: Our design process is proven, thorough and provides a clear guide to ensure your project success.
Complete Plan Sets: Each design is delivered as a complete plan set. With licenses in all 50 states, we ensure your designs are submitted in accordance with your local AHJs and utility.
Eliminate Permitting Delays
Skip the permitting and regulatory delays with designs that quickly pass inspection.
Include Your Team
Add members from your team for seamless, consistent conversation about your project.
Get Quotes Fast
Get accurate quotes quickly and complete your installations on time and on budget.
Pricing and Turnaround Time
- How much are your commercial, utility, and microgrid design packages?
Commercial and Industrial (C&I), utility, and microgrid designs are more complex than residential systems, especially when energy storage is added. For the most accurate estimate of your large-scale solar design costs, request a free quote through our SepiPortal.
- What’s “Not-To-Exceed” pricing?
When SepiSolar gives you a solar or storage design estimate, we base our quote on a “Not-to-Exceed” (NTE) pricing structure. That means that we charge you for the hours we estimate to complete the original scope of work multiplied by hourly rate of our engineer or the actual hours spent, whichever is less. The NTE amount will only be exceeded if the original scope of work and project details change.
- What’s your turnaround time?
SepiSolar’s delivers most residential designs in 3-5 business days, and commercial plans in 7-10 business days, depending on design complexity. For high-volume clients, SepiSolar assigns a dedicated engineer that can generate multiple designs in less than a day. A one-time expedite fee can also be applied to any project if turnaround is needed by a certain deadline.
Register to the SepiPortal for a fast, free estimate for one project or for high volume monthly pricing.
- How much are your (qualified) residential design packages?
As with solar installation costs, our price for residential design and engineering services depends on the size, complexity, and volume of work. “Complexity” can include additional battery designs, EV-charging, elevation views, wind turbines, diesel generator-set integration and transfer switch controls, and structural and electrical professional engineer (PE) stamps.
For the most accurate estimate of your solar design costs, request a free design quote through our SepiPortal.
Types of Projects
- What size projects can you design?
SepiSolar is your one-stop shop for all solar and energy storage design and engineering; we specialize in commercial/industrial, utility scale or large-scale residential.
- Do you design solar+energy storage?
Yes. SepiSolar has a wide range of energy storage design services for residential, commercial, and utility-scale projects. In addition to our design work, we also offer technical and financial energy storage modeling.
- Can SepiSolar design solar and battery systems for any state?
Yes. SepiSolar designs from California, but our NABCEP-certified engineers design solar-plus-storage systems for all 50 states and jurisdictions, as well as international projects and opportunities.
- Are your permit plans customized for each jurisdiction?
We continuously update our proprietary database of permitting requirements, allowing us to design solar and storage permit plans for each jurisdiction and utility across the U.S.
- How many designs has SepiSolar completed?
Since 2009, SepiSolar has designed over 6.5 GW of solar projects. That includes over 4,000 residential, more than 2,000 C&I, and agriculture projects, over 50 commercial and utility storage projects, and above the 200 mark for residential solar+storage projects. Obviously, these numbers grow every day.
About SepiSolar, Inc.
SepiSolar is a solar design & engineering firm and consulting company committed to creating abundant energy that is accessible to all, supplied by nature, and enabled by design. Since 2009, our licensed professional solar engineers and designers have advanced the development of commercial and industrial energy infrastructure. We provide complete plans sets, and all related engineering designs and drawings required to pass permitting with your local AHJs. Contact our solar design & engineering company today for your solar design and engineering service needs.
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