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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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KiloVault HAB V4 7.5kWh Lithium Battery Storage System

$3,735.00

List price $5,500.00

KiloVault 3600 HLX+ Battery Bracket

$69.00

List price $89.00

SimpliPhi AmpliPHI 3.8kWh Lithium (LFP) Battery, 48V - Sol-Ark

$2,995.00

List price $3,975.00

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BLOG UPDATES

A Commercial Energy Storage System at altE Headquarters Nov 23, 2022

Solar Investment Tax Credit Expanded and Extended by the Inflation Reduction Act Sep 20, 2022

What to Know About UL 9540 and Energy Storage Systems Sep 14, 2022

NEWS UPDATES

U.S. Solar Panel Supply Impacted by Commerce Department Investigation

Pre-existing PV panel supply shortages are getting worse with the U.S. Department of Commerce's announcement of an investigation into whether crystalline silicon cells imported from several Southeast Asian countries are in violation of U.S. anti-dumping and countervailing trade laws.
altE Featured in Resource in Focus Magazine

Our co-founder Sascha Deri reflects on the history of altE, the current state of renewable energy adoption and storage, and the future of the electrical grid in a great piece in Resource in Focus.

Click here to read the article!

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Solar + Storage System Tour for a 1,200 Square Foot Off-Grid House

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CUSTOMER STORY

Maine Forest & Logging Museum

With the cost of bringing grid power to their property too high, the nonprofit Maine Forest and Logging Museum turned to solar and found altE.

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