Making Renewable Do-able!

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

Shop our wide selection of solar panels, solar power systems and accessories.

Click for Products & Categories

Featured Solar Panels & Solar Gear

View All +

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

$1,657.97

List price $2,341.10

Crown Battery 390Ah 6V Flooded Lead Acid Battery

$295.00

List price $305.00

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

$3,815.00

List price $5,620.00

News & Blog

Learn Solar

Customers

BLOG UPDATES

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

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

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

KiloVault Solar Lithium Batteries

New to Solar?

We've written & collected a wide range of articles about all aspects of these solutions. Please feed your curiosity!

Great Places to Start
Solar Panel Systems
Wind Power

Calculators

Rebates

TESTIMONIAL

DJ, Biddeford, ME says:

I'm pleasantly surprised, and impressed with your customer service. Thank you for being a company that actually cares! I will be ordering from you in the future.

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.

SIGN-UP FOR OUR NEWSLETTER +