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PUBLIC MARKS with tags energy & storage

July 2007

Flow batteries

by keulenae
Electricity has many advantages, but a disadvantage that it is impractical to store it in large quantities at reasonable cost. Flow batteries may change this

March 2006

Tankless Water Heater Buying Guide

by multilinko & 5 others (via)
Tankless Water Heaters, also called Instantaneous or Demand Water Heaters, provide hot water only as it is needed. Traditional storage water heaters produce standby energy losses that cost you money. We do not leave our homes heated while vacationing. We only heat our homes when there is a demand for heat. In the same way, a Tankless Water Heater is used only when there is a demand for hot water.

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