SepiSolar Confidential: Meet Josh Weiner Through this Suncast Interview Series
By: Sepinews, on June 21, 2018

If you’ve never sat down and had a drink with SepiSolar’s CEO Josh Weiner to get to know him, here’s the next best thing: Listen […]

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Solar Pro Features SepiSolar’s View on Outsourcing Solar Engineering
By: Sepinews, on June 20, 2018

SepiSolar’s CEO Josh Weiner was recently interviewed by David Brearley in SolarPro Magazine’s “In-House versus Outsourced Solar Engineering in the May/June 2018 issues. Not everyone needs to outsource their […]

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Solar Pros Asked 8 Great Solar+Storage Questions for Our First “Ask SepiSolar Anything”
By: Sepinews, on

If you missed our first Ask SepiSolar Anything with SepiSolar’s CEO Josh Weiner answering solar+energy storage questions, you can’t ask any more questions, but you can […]

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What New Home Builders Need to Know About the Title 24 Solar Mandate
By: Joshua Weiner, on May 30, 2018

If you’re an architect, new homebuilder or housing developer in California, you’ve probably heard by now that the California Energy Commission (CEC) has updated its Title […]

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Join Our New Monthly Q&A: Ask SepiSolar Anything
By: Sepinews, on May 21, 2018

Join SepiSolar’s CEO and battery expert Josh Weiner for Ask SepiSolar Anything, a live monthly video Q&A about today’s hottest solar and energy storage topics. […]

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42, The Meaning of Life, and SepiSolar’s New Logo
By: Joshua Weiner, on May 4, 2018

Have you seen SepiSolar’s new logo? It used to look like this: And now it looks like this:     When any company goes through […]

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Schneider Electric Recalls Square D Brand 30A and 60A Disconnects
By: Richard Dobbins, on April 25, 2018

Attention solar installers! If you haven’t heard the news yet, Schneider Electric recently issued a recall notice on their Square D brand 30A and 60A […]

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L.A. County Solar Code Updated, Reducing Need to Replace Center-Fed Service Panels
By: Guest Contributor, on April 17, 2018

The following guest blog post was contributed by Jim Jenal, Founder & CEO of Run on Sun, a Pasadena solar installer and integrator who often blogs […]

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SepiSolar’s Origin Story: What Our Name Means & Why Solar Design Matters
By: Joshua Weiner, on April 10, 2018

“What does the SepiSolar name mean?” “Josh, how did SepiSolar get started?” “What makes SepiSolar different from other solar design and engineering services?” Since founding […]

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SepiSolar’s Josh Weiner is in Greentech Media on Energy Storage Policy
By: Sepinews, on April 5, 2018

As California energy storage becomes more widespread, utilities have been concerned about battery owners charging their systems from the grid at a lower price and […]

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4 Questions Engineers Ask When Evaluating Cost per Kilowatt-hour of Energy Storage: Part 1
By: Joshua Weiner, on March 27, 2018

Typically, the first figure developers and asset managers use to compare energy storage technologies is its dollar per kilowatt-hour ($/kWh) cost. But that seemingly simple […]

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SepiSolar’s Engineers Love Solving Solar Mysteries
By: Joshua Weiner, on March 15, 2018

Solar engineers love a good mystery to solve. A few months ago, our engineers overheard a phone call between one of our team members and a […]

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Massachusetts to Adopt UL 1741 SA for Advanced Inverter Functionality
By: Guest Contributor, on March 6, 2018

The following blog post was contributed by CivicSolar’s Conor Walsh, Senior Account Manager at CivicSolar.   *** This article is a follow-up to a previous […]

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SepiSolar’s Josh Weiner Talks Solar+Storage on Barry Cinnamon’s Energy Show
By: Sepinews, on March 5, 2018

SepiSolar’s Josh Weiner was recently interviewed about trends in solar+storage design and engineering by Barry Cinnamon on “The Energy Show,” a radio program on KDOW Radio […]

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An Open Memo to Fellow Solar Designers and Engineers: Together, We Must Lead
By: Joshua Weiner, on February 28, 2018

My fellow solar designers and engineers, make no mistake: We have been and will continue to be an important part of the world’s transition from […]

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Tor ‘Solar Fred’ Valenza Joins Design-Engineering Firm SepiSolar as Director of Marketing
By: Sepinews, on February 5, 2018

Veteran solar marketer aims to streamline permitting and utility interconnection through more effective communications about solar + storage design and engineering FREMONT, Calif.–¬ February 05, […]

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Josh Weiner Set to Speak at U.S Energy Storage Summit in San Francisco December 12 & 13
By: Sepinews, on November 21, 2017

SepiSolar’s own Josh Weiner will be speaking at U.S Energy Storage Summit in San Francisco on December 12 and 13! Josh’s energy storage career began […]

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Why You Can’t Use Your Solar Panels During a Blackout After a Hurricane
By: Richard Dobbins, on October 9, 2017

In the aftermath of the recent hurricane in the southern United States and the Caribbean, I’ve seen some heavy discussion surrounding the state of affairs […]

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Why I’m Excited about the 2017 NEC Coming Out, Part 2
By: Joshua Weiner, on September 12, 2017

Ok, let’s cut to the chase. Here are the new Code sections that Bill Brooks and team have implemented as part of the new 2017 […]

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Why I’m Excited about the 2017 NEC Coming Out, Part 1
By: Joshua Weiner, on August 23, 2017

  Normally I don’t get excited when a new version of the NEC comes around. That’s because a lot of Code authors argue and change […]

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How Will the Eclipse Affect Solar Power?
By: Richard Dobbins, on August 15, 2017

Whether you own solar panels, are a customer of our commercial solar services or are an astronomy aficionado, Monday is going to be an exciting […]

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Earth Overshoot Day Occurred August 2
By: Joshua Weiner, on August 3, 2017

August 2 was Earth Overshoot Day, and while it sounds like one of those quirky internet holidays, it is not one that our solar consulting […]

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Tutorial for Self-Registration on SepiSolar’s Online Portal
By: Joshua Weiner, on July 10, 2017

Ready to register on SepiSolar’s Online Portal? Visit this link for a quick tutorial that shows you exactly what to do.      

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Visit SepiSolar Experts at InterSolar North America
By: Sepinews, on June 30, 2017

You are invited to meet the real people who will be doing your solar drafting work at SepiSolar. We will be awaiting you at Booth […]

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Celebrate Energy Week by Going Solar
By: Joshua Weiner, on June 29, 2017

It’s Energy Week—the perfect time to consider our residential or commercial solar services if you haven’t already. While the Trump Administration’s goal is for our […]

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Do Residential Lithium Battery Systems Make Economic Sense?
By: Joshua Weiner, on June 1, 2017

  Mercedes has announced the introduction of its residential battery system into the North American market. Click here to read about this. Frankly, it’s a […]

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Fremont-based SepiSolar Solar Design and Permitting is Ready to Meet the Needs of Fremont’s New Solar Legislation
By: Sepinews, on May 8, 2017

SepiSolar Solar Design and Permitting is poised to meet the needs of solar installers and developers as their hometown of Fremont, CA is now mandating […]

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Go Solar for Earth Day
By: Joshua Weiner, on April 20, 2017

Saturday, April 22 is Earth Day. It’s the perfect time to consider going solar if you haven’t already. Solar energy was first harnessed for commercial […]

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SepiSolar and Partners Complete Install at Mercedes Benz of Fresno
By: Sepinews, on October 22, 2016

SepiSolar, along with several partners, completes impressive new solar power array at Mercedes-Benz of Fresno. The new system includes: 396 kW, 328 kW AC. 1524 […]

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SepiSolar Joins the CALSEIA
By: Sepinews, on October 20, 2016

SepiSolar is now a Proud Member of The California Solar Energy Industries Association (CALSEIA). The mission of CALSEIA is to promote the growth of the […]

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