Solar hot water

Solar hot water

"Sistema por Hidroneumatico" by Mmz.alonso is licensed under CC BY-SA 4.0

a system that generates hot water by collecting heat from the sun. There are two basic types: active and passive.

Pros

Zero-carbon, fuel-free hot water for domestic (and less commonly, commercial and industrial) use

Cons

Doesn't solve all of our energy needs; geographically limited

Real Talk

While solar hot water often has payback periods far shorter than solar PV, it suffers from something of a PR problem: people are simply more attracted to producing electricity than hot water. However, communities would do well to support widespread implementation of the technology which offers a carbon-free pathway to replacement of propane and natural gas-fired residential water heaters.

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