Monthly Archive: December 2022

All I Want For Christmas Is A New Voltex AL Heat Pump Water Heater

Heat pump water heaters (HPWHs) are a key technology for a zero-emissions 21st century. They are 2–4 times more efficient than fossil gas or electric resistance water heaters, emit little if any CO2 (depending on your electricity mix), and cost around $100 a year to operate. And, if you’ve got lots of family members, housemates, […]

How To Make Your iPhone Charge On Clean Energy

Writing about Apple’s deep decarbonization efforts recently, I discovered something about my iPhone that I didn’t realize. In the US, if you are on iOS 16, you can now set your phone to charge on clean, green energy as much as possible. What does that mean? If you go to “Battery Health & Charging” and […]