I’ve been testing the Air Jet showerhead, and so far I’ve been impressed. This is low-flow showerhead, but it creates a high pressure shower experience using simple physics.
Reducing household water usage has big-time benefits for both homeowners and for the environment: reducing strain on local water resources, cutting demand on wastewater treatment facilities, and lowering both water and sewage utility bills, to name a few. Although this is by no means an exhaustive list, we’ve put together a collection of water-saving tips […]
Tankless water heaters have been used in Europe and Asia for 50 years, and they are gaining popularity in the US. Right now they represent about 8% of new sales in the US. Tankless heaters, also called on-demand, flash or instant water heaters, qualify for a $300 federal tax credit. How efficient are tankless water […]
Flow batteries are a unique kind of battery — they have tanks that hold hundreds of gallons of the chemicals, called electrolytes. Flow batteries just happen to be very good at storing solar or wind power. Renewable power sources suffer from being intermittent, and less reliable for continuous power supply than coal or gas. Neither […]
King Island is a small island off the Australian coast, near Tasmania. King Island isn’t connected to the mainland power grid, and apart from its own small wind farm it relied for a long time on diesel generators for its electricity. That changed in 2003 when the local utility company installed a mammoth rechargeable battery […]