Think of solar greenhouse heaters as a way to supplement existing heating systems. They're out there, but some assembly may be required.

About 20% of a home’s energy use goes toward water heating, according to the U.S. Department of Energy. If you’re looking to save on energy for financial or environmental reasons, you might consider ...

A solar pool heater uses a pump, a solar collector and piping in conjunction with your existing pool filter. The process is simple: The pump takes water from the pool, then forces it through the ...

Installing solar power at a home is a great way to reduce electricity bills, especially as the cost of solar panels and their associated electronics continue to plummet. Not every utility allows ...

Startup Cala Systems, which makes seriously smart heat pump water heaters, has secured $5.6 million in seed funding and commercially launched its product. The round was led by the Massachusetts Clean ...

The country's ubiquitous rooftop heaters may be on their way out as the government pushes new technologies that offer cheaper ...

The best solar cells have an energy conversion efficiency of 30 pecent. This means that 70 percent of the collected energy is lost rather than stored. Improvements have been made under test conditions ...

Dusty Dezhou was relegated to the footnotes of Chinese history for centuries, known mainly as the place where a Filipino king died. Now, Huang Ming hopes hot water will help put it on the map. His ...

The company opened a $25 million Series B funding round to support its concentrated solar power solution that stores and ...

It’s 2024, and there’s no getting around it. Grid energy is expensive. [Darrell] realized that a lot of his money was going on water heating, and he came up with a neat solution. What if he could hack ...