Residential Solar Power News
Even if lithium-ion batteries are more known on the market and considered the most reliable, cheap and safe to use, lithium-sulfur batteries are catching up fast. There were several problems reported to the lithium-sulfur batteries but they will be solved in the close future as the capacity of the lithium-sulfur batteries is several times the one of the lithium-ion.
Chunlei Guo, a researcher from the University of Rochester, along with a team of scientists, have created a slab of metal that can push water uphill, defying gravity, by using the capillary effect. It’s the same effect that happens when you put a piece of fabric in a wine glass, for example, and hold it with your hand.
The deep Butterfly Roof
The traditional gabled roof that we are all familiar with was engineered to slough off snowfall. But in an uncertain post peak oil future of possible energy shortages and water shortages, more and more houses are showing up with roof-shapes engineered to harvest their own rainwater, and support solar power generation.
This creates a butterfly roof, the opposite of the traditional gable. The very post peak oil Kangaroo House in increasingly drought ridden Australia has the same distinctive roof shape, for the same reasons: it acts as a huge funnel for rainwater, which can then be harvested.