Solar Thermal Technology Poses Challenges for Drought-Stricken California
California is facing a big challenge with renewable energy right now due to severe droughts in the area. Via MIT Technology Review.
California’s ambitious goal of getting a third of its electricity from renewable energy sources by 2030 is being tested by its driest year on record, part of a multiyear drought that’s seriously straining water supplies. The state plan relies heavily on solar thermal technology, but this type of solar power also typically consumes huge quantities of water.
The drought is already forcing solar thermal power plant developers to use alternative cooling approaches to reduce water consumption. This will both raise costs and decrease electricity production, especially in the summer months when demand for electricity is high. Several research groups across the country are developing ways to reduce those costs and avoid reductions in power output.
More than a dozen research groups funded by the Electric Power Research Institute and the National Science Foundation are developing ways to avoid the current problems with dry cooling technology. One project uses a conventional evaporative cooling system but captures the water vapor to reuse it. Others are working to improve the efficiency of dry cooling towers so that they can be made smaller and cheaper. A third approach is to use nanoparticles in the cooling fluid to improve its ability to absorb heat. And new designs that improve air circulation could reduce the size and cost of cooling towers.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.