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Toms shoes for clean water
One item gives one person access to clean water for 25 years. We help to build wells and biosand filters in Africa, India, and South America.
Big, safe batteries without the toxic chemicals - Just add water
Advanced Exergy (AE) provides its utility and industrial customers with a patented system to store electricity. The Thermal Approach to Grid Energy Storage (TAGES) acts like a battery – charging with electricity from the grid when energy is plentiful and cheap ...