And that begs a caution for anyone considering a DIY solar water heater: Don't forget to include hoisting it onto the roof, ...

Domestic hot water, with a heating system powered exclusively by DC solar power ... with four 340 W modules. The rooftop arrays are directly connected without inverters to my-PV's Elwa DC electric ...

Taking a hot shower can literally mean pouring money down the drain. The average American household spends almost $300 pear year to heat water. If you spend a little extra time in the shower, that ...

Four million Australian households and businesses have rooftop solar installed, making us the world leader in the technology.