Since its establishment in 2008, Intersolar North America has become the most attended solar event and the premier networking platform for the North American solar industry.
AltEnergyMag.com's special coverage report brings all the important headlines from this years event.
John Petersen for Investor Intel: Rooftop solar is an odd duck. A consumer buys an expensive capital asset with the expectation that he’ll recover his investment through lower electric bills. As a matter of metaphysics, he’s decided to go into the power business with the primary goal of satisfying the most important and discriminating customer on the planet. The value proposition he currently offers his local electric utility is:
- I’ll buy less electricity from you because of my solar panels, but I need you on standby 24/7 to supply my nighttime needs and fill any weather related power production gaps;
- Since my solar panels will frequently produce more power than I need, I want you to give me credit for any excess power production, let me draw equivalent power from you when I need it, and structure it all as a tax free swap;
- You can, of course, bill me for any difference between what I deliver and what I take;
- I’ll have no duty to buy a fixed amount of power from you or deliver a fixed amount of power to you, but you must supply whatever I need and take whatever I don’t need; and
- You will be required to pay all of the costs associated with weather related production gaps and pass those costs through to your other customers.
Fred Lambert for Electrek: Last week, Elon Musk announced his plan for Tesla to acquire SolarCity and fold the solar installer’s operations into Tesla’s own business. The offer is still contingent on board approval and shareholder votes at both companies, but Electrek has now learned that the automaker is going ahead with trademark applications to sell solar products under its ‘Tesla’ brand.
According to trademark filings obtained by Electrek, Tesla’s trademark and copyright attorney at Cooley LLP, Ariana Hiscott, filled 6 new trademark applications for the company on June 22nd – the day Tesla announced the offer.
The trademarks applications range from solar cells and solar modules: “Solar energy equipment, namely, photo-voltaic solar modules for converting electronic radiation to electrical energy; and equipment for use in collecting and converting solar into electricity, namely, solar cells and inverters.”
To the installation and repair of solar panels: “Installation, maintenance and repair of solar panels and other equipment for use in converting solar energy into electricity; installation of solar energy systems and consulting related thereto.”
It also covers the monitoring of solar energy generation and the financing of solar installations. All applications are for the trademark “Tesla”. Cont'd...
Stephen Edelstein for GreenCarReports: Tesla Motors was the first carmaker to branch out from selling electric cars to offering standalone battery packs for energy storage, but others have followed the company's lead.
Mercedes-Benz and Nissan have stated their intentions to enter the energy-storage market, and now BMW is jumping on the bandwagon as well.
At the Electric Vehicle Symposium & Exhibition 29—known as EVS29—held this week in Montreal, Canada, BMW unveiled an energy-storage system that uses battery packs from i3 electric cars.
Developed in concert with German firm Beck Automation, BMW's system is designed to use either new battery packs or "second-life" packs that have degraded too much for continued use in electric cars.
Battery packs that can no longer function in cars still have enough usable capacity for energy storage.
BMW has tested the concept over the past five years with various research projects, including a 2013 "micro-grid" project with the University of San Diego, and a 2014 collaboration in Germany with utility Vattenfall to use electric-car battery packs as buffer to help stabilize electricity grids. Cont'd...
Elizabeth Woyke for MIT Technology Review: Lithium-ion batteries power everything from smartphones to electric vehicles. They’re well suited to the job because they are smaller and lighter, charge faster, and last longer than other batteries. But they are also complex and thus costly to make, which has stymied mass adoption of electric transportation and large-scale energy storage.
Yet-Ming Chiang thinks his startup 24M has the answer. The key is a semisolid electrode. In a conventional lithium--ion battery, many thin layers of electrodes are stacked or rolled together to produce a cell. “Lithium-ion batteries are the only product I know of besides baklava where you stack so many thin layers to build up volume,” says Chiang, who is a cofounder and chief scientist at 24M as well as a professor of materials science at MIT. “Our goal is to make a lithium-ion battery through the simplest process possible.” Cont'd...
Julia Pyper for GTM: A growing number of electric industry leaders agree that it’s only a matter of time before renewable energy resources dominate their grid systems.
In California, it’s already a reality, said Steve Berberich, president and CEO of California Independent System Operator Corporation. On a typical day, CAISO will pull about 30,000 megawatts of energy production, with around 6,500 megawatts from solar, 5,000 megawatts from wind and another 5,000 from geothermal and other services on the system. In addition, California’s grid system has roughly 4,000 megawatts of behind-the-meter solar, which is growing at a rate of about 70 megawatts per month.
In any given day, California gets more than 30 percent its electricity from renewable energy. On many days that amount climbs to 40 percent, and on some days renewables reach 50 percent, said Berberich.
“Now we have to think about the system as a renewable energy-based system complemented by other things,” he said, speaking at the Edison Electric Institute’s annual convention this week in Chicago. Cont'd...
Richard Martin for MIT Technology Review: Attempting to harness the power of distributed rooftop solar installations to make its grid more flexible and reliable, New York utility Consolidated Edison is launching a pilot program this summer to link dozens of small solar arrays into a single, software-connected power plant. The utility is working with solar power developer SunPower and energy storage company Sunverge to create a “virtual power plant”—a network of distributed assets that functions as a unified resource on the grid.
The project will include 300 homes with a combined total of 1.8 megawatts of solar capacity and batteries that can store up to four megawatt-hours of electricity, enough to run 300 average U.S. households for about 10 hours. Cont'd...
Carl Weinschenk for EnergyManagerToday: Renewable initiatives rely on the ability to save the generated energy for a rainy – or windless – day. It follows that the software driving the pivotal task of managing the energy storage system is of paramount importance, says Gabe Schwartz, the Director of Marketing for Stem, which describes itself as an intelligent storage company that combines hardware and software storage platforms.
The core storage technology itself is important, of course. But the linchpin – the secret sauce – is the way in which that energy is handled once it is generated. “It is not a solar panel…where if the sun is shining you are in good shape,” Schwartz said. “It must shift use from one time to another knowing exactly when most valuable time to do that is and have the ability to act quickly when those opportunities present themselves both to the customer and the grid.”
The market for storage – and the software that drives it — is growing. Cont'd...
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