Have you ever wondered about how safe your place or position is regarding electromagnetic and magnetic fields? Then here is your chance to find out. Everyone is exposed to a complex mix of weak electric and magnetic fields, both at home and at work, from the generation and transmission of electricity, domestic appliances and industrial →
https://spectrum.ieee.org/energywise/energy/the-smarter-grid/should-a-devastated-caribbean-leap-forward-to-renewable-power-and-microgrids After the destruction inflicted across the Caribbean by hurricanes Harvey, Irma, and Maria, renewable energy advocates are calling for a rethink of the region’s devastated power systems. Renewables advocates argue that the island grids should leapfrog into the future by interconnecting hundreds or thousands of self-sufficient solar microgrids. Some power system experts, however, say the solar-plus-batteries →
http://securityaffairs.co/wordpress/63902/security/securing-smart-grid.html During the recent years, there have been two cyber-attacks on power plants in Ukraine, which for the first time in the history succeeded to disrupted and cut power in a country. An analysis of the events in Ukraine indicates that in order for a cyber-attack to materialize, three conditions must exist: opportunity, ability, and motivation. →
https://techcrunch.com/2017/10/05/the-new-electric-utilities/?ncid=rss&utm_source=tcfbpage&utm_medium=feed&utm_campaign=Feed%3A+Techcrunch+%28TechCrunch%29&utm_content=FaceBook&sr_share=facebook New utilities are enabled by new technologies and business models, not fuels. Almost two-thirds of Americans want renewables to be prioritized. This desire transcends party politics and climate denial. But this doesn’t mean consumers want to pay more. Solar (and wind) power have made rapid progress against other energy options. Solar, and to a lesser extent, →
What is inside this old mains power filter? →
Here is picture of huge electrical switching device I saw today. I believe it is going to be installed inside or next to a big data center. I belive that this is made for controlling several megawatts of three phase 110 kV power. It seems to be made by ABB. →
http://www.sciencealert.com/researchers-have-conducted-the-first-thorium-salt-experiments-in-over-40-years#.WaUkb5ppSUB.facebook Netherlands-based nuclear power provider, NRG, are taking a gamble. They’re conducting experiments that could see a shift from uranium-based nuclear power to thorium. There has been the historical battle between using uranium or thorium as a nuclear fuel. Uranium provided a potential source of weapons-grade plutonium. A significant advantage of using thorium over uranium is it doesn’t →
https://futurism.com/people-are-using-old-laptop-batteries-to-build-their-own-versions-of-teslas-powerwall/ Tesla’s Powerwall was intended to provide a convenient way for homeowners to store electricity for future use, such as when the power goes out. But with a $5,500 price tag, they haven’t been affordable for many consumers. Some who had been interested in the tech, however, decided to try to make their own: constructed their own powerwalls by utilizing →
http://www.edn.com/electronics-blogs/benchtalk/4458731/Whipping-a-cheap-LED-PSU-into-usable-shape This interesting article analyses some cheap mains AC to 12V DC power supplies and how thet can be fixed to work OK. With some modifications they can be used to provide power to LED lighting. The writer of this article has a continuing love-hate relationship with Cheap Chinese Chotchkes – in this case, 18W power →
https://cleantechnica.com/2017/08/16/morgan-stanley-predicts-market-grid-storage-will-explode-next-3-years/ A new report authored by Stephen Byrd, a utility and cleantech analyst at Morgan Stanley, and Adam Jonas, its auto analyst, shows that they are bullish on the market for grid storage products. “Demand for energy storage from the utility sector will grow more than the market anticipates by 2019–2020,” the pair says. They predict →