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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

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

$1,793.29

List price $2,356.76

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

$5,095.00

List price $5,500.00

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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

Peter, Los Alamos, NM says:

The replacement panel arrived safe and sound. Amazing packing job! Coulda withstood an elephant stampede. Took me 15 minutes to unwrap and extract it... thanx for your help with this. A pleasure (as always) doing business with you folks.

CUSTOMER STORY

A Solar Dream Come True

After working in the RE field for over 25 years, Thomas Hopper has finally completed his very own solar project on his home in Concord, N.H.

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