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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 MicroGT 500 Microinverter

$249.00

List price $339.00

SimpliPhi Power PHI 3.5kWh Smart Tech Lithium Battery, 48V

$3,075.00

List price $3,575.00

Crown Battery 390Ah 6V Flooded Lead Acid Battery

$295.00

List price $305.00

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BLOG UPDATES

altE’s Successful First Solar Conference in Puerto Rico Apr 10, 2018

Battery Backup for Puerto Rico’s Grid Tied Solar Power Systems Jan 12, 2018

Solar Power International 2017 Sep 20, 2017

NEWS UPDATES

altE Opens Puerto Rican Warehouse

Solar company opens warehouse in Puerto Rico to reduce the headache and wait times to buy and install solar power systems during the continued electric grid crisis after Hurricane Maria.
altE Assists with Hurricane Relief Efforts in Puerto Rico

altE is proud to have donated solar power equipment to keep a health clinic operating in Puerto Rico.

LATEST YOUTUBE VIDEO

Grid-tied solar is designed to turn off when the grid goes out. We discuss options for adding battery backup to your existing grid-tie solar system. Two choices are AC and DC Coupling. We cover the equipment needed and the pros and cons of each option.

Adding batteries to grid tied solar

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CUSTOMER STORY

Skystream's the Limit

Alt-E customer Kris Hansson is a do-it-yourself superstar! Read about his amazing project and how he works to incorporate Renewable Energy into his daily life with a wind turbine.

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