The ACES Alternative Water Energy System

A team of engineers designed, constructed, and tested the ACES alternative water energy system using a water tank to cool a house in summer as well as heat a house in winter.

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This seemingly magical process — which is known as the Annual Cycle Energy System (or ACES, for short) — is not based on magic at all. Rather, it is firmly founded on two very scientific speculations.
ILLUSTRATION: MOTHER EARTH NEWS STAFF