Clean Technica

Heat Pump Water Heater 2025 State Of The Market Report — Tons Of Great Tech But Policy Headwinds

6 min read

2025 was a good year for heat pump water heaters (HPWHs). In our annual State of the Heat Pump Water Heater Market report, we talk about how residential and commercial manufacturers released more new and updated products last year than any other year in the product’s history. Five new residential … [continued]

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Clean Technica

Heat Pump Water Heater Training for Earth Day with 12 Manufacturers

2 min read

Heat pump water heaters (HPWH) are one of the key technologies to save this troubled little planet of ours. They are 3–6 times more efficient than other water heaters, save hundreds of dollars on utility bills and 1 ton of CO2 every year compared to water heaters that burn fossil … [continued]

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Clean Technica

New York Build Expo: Heat Pumps Take Center Stage

8 min read

This week, I attended New York Build Expo, co-located with Installer Expo in the Javits Center. There were far more professionals there than press, which meant that I was able to get into practical discussions quickly. While there were many interesting technologies, less focus was on showing off or attracting … [continued]

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Clean Technica Climate change Research

Hydrogen vs Batteries on Norway’s Lofoten Route: An Engineering Reality Check

17 min read

The recent investigative reporting by Swedish Television and Norway’s NRK into the fuel cell supplier PowerCell has opened a window into the Vestfjord Lofoten hydrogen ferry project that Norway has been building toward for years. The journalists focused on a specific claim about durability. Internal tests suggested that the fuel … [continued]

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