Monday, July 12th, 2021

Time	Event
12:17a	Ukraine Police Bust Massive Crypto Mining Operation Stealing Electricity Business Insider reports: A huge underground cryptocurrency mining operation has been busted by Ukraine police for allegedly stealing electricity from the grid. Police said they'd seized 5,000 computers and 3,800 games consoles that were being used in the illegal mine, the largest discovered in the country. The mine, in the city of Vinnytsia, near Kyiv, stole as much as $259,300 in electricity each month, the Security Service of Ukraine said. To conceal the theft, the operators of the mine used electricity meters that did not reflect their actual energy consumption, officials said. "Such illegal activity could lead to power surges and left people without electricity," the security service said. Read more of this story at Slashdot. (Comment on this)
7:34a	Which Energy Future: Power Lines or Rooftop Solar Panels (and Storage Batteries)? The New York Times reports on "an intense policy struggle" in America's national and state governments: -On one side, large electric utilities and President Biden want to build thousands of miles of power lines to move electricity created by distant wind turbines and solar farms to cities and suburbs. - On the other, some environmental organizations and community groups are pushing for greater investment in rooftop solar panels, batteries and local wind turbines. And the result "could lock in an energy system that lasts for decades." At issue is how quickly the country can move to cleaner energy and how much electricity rates will increase... The option supported by Mr. Biden and some large energy companies would replace coal and natural gas power plants with large wind and solar farms hundreds of miles from cities, requiring lots of new power lines. Such integration would strengthen the control that the utility industry and Wall Street have over the grid. "You've got to have a big national plan to make sure the power gets from where it is generated to where the need is," Energy Secretary Jennifer Granholm said in an interview. But many of Mr. Biden's liberal allies argue that solar panels, batteries and other local energy sources should be emphasized because they would be more resilient and could be built more quickly... In all probability, there will be a mix of solutions that include more transmission lines and rooftop solar panels. What combination emerges will depend on deals made in Congress but also skirmishes playing out across the country... As millions of California homes went dark during a heat wave last summer, help came from an unusual source: batteries installed at homes, businesses and municipal buildings. Those batteries kicked in up to 6 percent of the state grid's power supply during the crisis, helping to make up for idled natural gas and nuclear power plants. Rooftop solar panels generated an additional 4 percent of the state's electricity... California showed that homes and businesses don't have to be passive consumers. They can become mini power plants, potentially earning as much from supplying energy as they pay for electricity they draw from the grid. Home and business batteries, which can be as small as a large television and as big as a computer server room, are charged from the grid or rooftop solar panels... Regulators generally allow utilities to charge customers the cost of investments plus a profit margin, typically about 10.5 percent, giving companies an incentive to build power plants and lines... A 2019 report by the National Renewable Energy Laboratory, a research arm of the Energy Department, found that greater use of rooftop solar can reduce the need for new transmission lines, displace expensive power plants and save the energy that is lost when electricity is moved long distances. The study also found that rooftop systems can put pressure on utilities to improve or expand neighborhood wires and equipment. The director of a Chicago-based environmental nonprofit tells the Times that "Solar energy plus storage is as transformative to the electric sector as wireless services were to the telecommunications sector." In a weird twist, fossil fuel companies are now joining forces with local groups (including environmental groups) to fight the construction of new power lines. Read more of this story at Slashdot. (Comment on this)
8:05p	Stumble-proof Robot Adapts To Challenging Terrain in Real Time Robots have a hard time improvising, and encountering an unusual surface or obstacle usually means an abrupt stop or hard fall. But researchers have created a new model for robotic locomotion that adapts in real time to any terrain it encounters, changing its gait on the fly to keep trucking when it hits sand, rocks, stairs and other sudden changes. From a report: Although robotic movement can be versatile and exact, and robots can "learn" to climb steps, cross broken terrain and so on, these behaviors are more like individual trained skills that the robot switches between. Although robots like Spot famously can spring back from being pushed or kicked, the system is really just working to correct a physical anomaly while pursuing an unchanged policy of walking. There are some adaptive movement models, but some are very specific (for instance this one based on real insect movements) and others take long enough to work that the robot will certainly have fallen by the time they take effect. The team, from Facebook AI, UC Berkeley and Carnegie Mellon University, call it Rapid Motor Adaptation. It came from the fact that humans and other animals are able to quickly, effectively and unconsciously change the way they walk to fit different circumstances. "Say you learn to walk and for the first time you go to the beach. Your foot sinks in, and to pull it out you have to apply more force. It feels weird, but in a few steps you'll be walking naturally just as you do on hard ground. What's the secret there?" asked senior researcher Jitendra Malik, who is affiliated with Facebook AI and UC Berkeley. Certainly if you've never encountered a beach before, but even later in life when you have, you aren't entering some special "sand mode" that lets you walk on soft surfaces. The way you change your movement happens automatically and without any real understanding of the external environment. Read more of this story at Slashdot. (Comment on this)

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