Solar Water Heater

3% of members are saving with this action!

Save up to 1,500 kg / 3,300 lbs CO2 and up to $450 per year!

Solar water heaters are units that can supplement or replace an existing gas or electric water heating system. Solar panels will be installed on the exterior of the house to heat the water.

"A typical solar hot water system will reduce annual energy costs by 40 to 50 percent. You can expect that a solar water heater will provide you with 1500 to 3000 kWh of energy per year, depending on your hot water usage and regional climate." - from

Benefits and costs

Annual CO2 Savings350 - 1,500 kg
770 - 3,300 lbs
Annual Cash Savings$105 - $450
Initial Cost$2,000 - $6,000
Time to pay for itself4.0 - 57.0 years
CO2 saved per year per initial dollar invested0.06 - 0.75 kg

* These value ranges were taken from many sources including product documentation, published reports, and the reference material linked here.

If everyone did this ...

If every household in the US did this, it could save a collective 198,000,000 tons of CO2 per year!

This would be equivalent to:

  • Taking 38,823,529 cars off the road for a year
  • Producing 14,887,218 tons of Beef

Visit How Much CO2 Is That? for more information.

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