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Specializing in off-grid, grid-tie and DIY solar power since 1999.

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Featured Solar Panels & Solar Gear

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Magnum Energy PT-100 100A MPPT Solar Charge Controller

$875.00

List price $999.00

KiloVault HAB 7.5kWh 150Ah 48V Lithium Battery Storage System

$5,095.00

List price $5,500.00

KiloVault 3600 HLX 3600Wh 300 Ah 12V Lithium Solar Battery- V3

$1,945.00

List price $2,449.00

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BLOG UPDATES

The 2021 Federal Solar Tax Credit Step Down Nov 16, 2020

Replace Lead Acid Batteries with Lithium for Marine and RVs – Why & How Nov 03, 2020

altE’s Acquisition of Real Goods: 1 Year Later Sep 15, 2020

NEWS UPDATES

Coverage from the Texas Solar Energy Society

When Michael Blank was nine, his dad, an electrical engineer, taught him basic wiring. At 13, Blank was doing more complicated electrical tasks than dad was comfortable supervising.

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altE COVID-19 Outbreak Response Plan: Walk-In Sales & Customer Pick-Ups

Effective March 17, 2020 we will be temporarily suspending our walk-in service to do our part in adhering to the CDC’s recommended social distancing and to protect our employees, their families and our loyal customers.

LATEST YOUTUBE VIDEO

Continuing with our Solar Power for DIY series, in part 2 of 2 on solar panel basics, we discuss the Standard Test Conditions ratings of panels, the cables, wiring in series vs. parallel, and the difference in appearance of mono vs poly crystalline solar p

Intro to Solar Panels - Part 2 of 2

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TESTIMONIAL

Howard, Beaver Dam, AZ says:

It was just a pleasure to deal with Greg. He was very professional and answered every question I asked in seconds and made sure I had all the extras I would need to complete the installation. I don't know of anything that you could do better. The product is preforming better than I expected and I have recommended you to my friends.

CUSTOMER STORY

The Solar Challenge

Philip Shelton likes a challenge and designing a solar hot water system for his home may be his biggest hurdle yet. Phil gives us a glimpse into the life of this busy but determined Maine family.

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