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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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Off-Grid 450W Cabin Solar Power System - Base Kit

$1,694.30

List price $2,347.10

altE Pre-Wired System Schneider SW4048 Inverter with Midnite CL150 Charge Controller

$3,815.00

List price $5,620.00

Base Kit 1 Off-Grid 3.6kW Residential Solar Power System

$6,626.89

List price $9,424.50

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BLOG UPDATES

A new chapter begins for SolarWorld Jan 11, 2019

Grid-tied Solar and the Dreaded 120% Rule Nov 16, 2018

Ask the altE Experts: What’s Next for Renewable Energy? Jun 08, 2018

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.

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Batería Solar de Litio - La KiloVault

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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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