Panasonic said the heat pump is compatible with a new Tepco electricity rate plan for solar self-consumption. “A normal heat pump water heater boils hot water at night, but the EcoCute product ...

You'll have hot water for several hours if your tank is well insulated. Homes with time-of-use tariffs can time their water heating for when electricity rates are cheaper. They're usually easy to ...

The device is also solar-powered and can convert about 93 per cent of the sun into energy, five times better than current desalination systems. It can also produce about 20 litres of fresh water ...

"Barnard b is one of the lowest-mass exoplanets known and one of the few known with a mass less than that of Earth." ...