Why the rise of green energy makes utility companies nervous. Mark and Sara Borkowski live with their two young daughters in a century-old, fifteen-hundred-square-foot house in Rutland, Vermont. Mark drives a school bus, and Sara works as a special-ed teacher; the cost of heating and cooling their house through the year consumes a large fraction … Read more
You can get much bigger inverters on 24V or 48V than 12V. There are a number advantages in opting for a higher DC supply voltage. – For any given load, half the DC current and losses are down by ¼. Reduced fire risk. – Better input regulation. 0.5v line drop at 12v = 4.6% supply … Read more
The same method for building structural walls in buildings can be applied when building retaining walls made with rammed earth encased in steel-belted rubber. Depending on the load the retaining wall is retaining, the batter and other adjustments should be considered. Some tire retaining walls have been built up to 25 ft. high. Tires make an inexpensive solution that requires … Read more
