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I don't know if this is the reason, but one potential advantage of tank water heaters is the ability to use off-peak power. This can be a big cost advantage, an
by sacred_numbers 6y ago
I don't know if this is the reason, but one potential advantage of tank water heaters is the ability to use off-peak power. This can be a big cost advantage, and even if it's less energy efficient it can theoretically be better for the environment by allowing water heaters to act as distributed renewable energy storage. At the moment, though, the efficiency savings probably make tankless water heaters a bit more environmentally friendly.
- Matumio 6y agoFrom a grid-optimization point of view a hot water storage is almost as good as a battery. You can "charge" it whenever unreliable local energy sources (wind, the solar panel on your roof) are producing in excess. This helps to consume electricity more locally, and reduces the losses and infrastructure required to transport electricity.