Solar power engineering and sustainable development experience in developing nations and industrialized nations. Over 30 years of solar and renewable energy system design and engineering experience. Manufacturing and worldwide distribution of a patented line of solar charge controllers and battery capacity meters. A staff of degreed Electrical and Mechanical Engineers including licensed professional engineering services. A Xantrex Certified Repair Center for Trace power inverters and charge controllers.

For a custom solar energy system or for assistance with determining an appropriate pre-packaged system, contact ETA Engineering-The most experienced renewable energy engineers in the Southwest.

It's easy, and more affordable than you think!

Use the sun at night with these lanterns.  Perfect for camping and outdoor use, or for backup and emergency lighting.  These lanterns operate from a rechargeable battery which can be charged from the on board solar panel or from a 12 Volt DC or 120 Volt AC source.  As a special feature, the lantern can be plugged into a home wall socket and when the electricity goes out, the light automatically turns on.  The Solar Navigator model also has a built in radio.  See more...

ETA has manufactured and sold over 12,000 solar charge controls and meters since 1992 with nearly 100% reliability.  A real workhorse, these units were designed to deliver many years of service on sustainable development projects in developing countries and in remote areas.  The ETA Engineering battery charging methodology is designed to take excellent care of the batteries in a system to reduce overall system maintenance and increase battery lifetimes.  Our meters and charge controls feature: durable construction, quick and easy installation, pulse width modulation for maximum battery life, modularity for system expansion, overload protection, high efficiency, competitive prices and an industry leading 5 year warranty!  Low Voltage Disconnect, and Automatic Timer models are also available!