I’ve stated it before on Hackaday but one of the most interesting engineering challenges posed to me this year was “how could you store enough energy to power a decent portion of a home for several ...

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 ...

At top, Hawaiian Electric linesmen continued to work along Honoapiilani Highway on Thursday restoring power to the area after last week’s wildfires in Lahaina. The treatment plants and the two wells ...