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The future of a cleaner, cheaper power grid is batteries
On the southern edge of the island of Kauaʻi sits an unsightly diesel power plant. The rust-covered smokestacks (a by-product of being next to the ocean) that emit a mechanical engine drone are a stark contrast to the serene beauty of the rest of the Hawaiian island. For decades this smoke-belching eyesore was the main source of electricity for Kauaʻi. But now it's being overtaken by renewable sources -- one that's made possible by batteries like those being built by Tesla.
Tesla's Powerpacks are now lighting up California's grid
"Batteries are boring when they are successful." That's Tesla Chief Technology Officer JB Straubel, speaking on Monday to an audience of reporters, employees and government officials sitting in the middle of the new 20-megawatt Mira Loma energy storage station in Ontario, California. Behind him, row upon row of Tesla Powerpacks and industrial inverters filled the fenced-in 1.5-acre lot. Those gleaming white battery boxes, though boring looking, are capable of powering up to 15,000 homes for four hours during peak times, or roughly 2,500 homes for an entire day. This is an important development indeed, because it means utilities won't have to fire up fossil fuel-powered stations to fill the energy gaps.
California's giant battery test is a step towards clean energy
One of the biggest challenges of switching to clean energy sources is finding a place to store excess power. That's relatively easy on a small scale, but it's much more daunting for your utility company. Southern California Edison is apparently ready to take on that challenge, however. It just launched the Tehachapi Energy Storage Project, a large-scale experiment in using lithium-ion batteries (608,832 of them, to be exact) to preserve unused electricity. For the next two years, the 32 megawatt-hours array will scoop up leftover energy from nearby sources, including a wind turbine area; SCE will be watching closely to see how the lithium-ion packs improve its grid's real world performance.
Nest Energy Services link home cooling to utilities' cloud data
As clever as the Nest Learning Thermostat can be, its intelligence only extends as far as the front door: it hasn't really been aware of how neighbors or the seasons affect our power bills. Nest Labs is improving that connection to the outside world through Nest Energy Services, a new program that links its device to the collective, cloud-based knowledge of utility companies. When owners are with an Energy Services-aware provider, the thermostat will know when to brace for an energy "rush hour" and automatically limit its cooling during peak (read: expensive) periods. It also gives a heads-up for seasonal discounts that fine-tune the temperature schedule over the course of a few weeks. Unlike previous utility-guided approaches, Nest users can always retake control if they genuinely can't stand the heat. Only Austin Energy, Green Mountain Energy, Reliant and Southern California Edison have lined up for the synced climate control so far, although Nest is sweetening the deal by expanding utility-based discounts for the thermostat itself. Customers of National Grid can get an immediate $100 rebate through Nest, while those who sign up with Reliant can still receive their thermostats for free with certain plans. The deals are calculated tradeoffs for companies likely to recoup their investment down the road, but they could represent big wins for homeowners still jittery about paying up front to save money later.
Mitsubishi's i MiEV electric car makes it to the States, but not to you
If you've been keeping an eye on the i MiEV, the word from the street (or, in this case, Wired) is that four of the cartoonish vehicles are on their way to SoCal Edison, where their Electric Vehicle Technical Center will put 'em through their paces, testing not only the vehicles themselves but how they interact with the grid. Not that the car will be selling Stateside any time soon -- until it bulks up enough to pass federal side-impact tests and its range is extended beyond the current 70 miles, it looks like the vehicle will be a no-show at the dealerships. Apparently the vehicle sports a 16-kWh lithium-ion battery and optional regenerative braking mode, and the 47 kW (roughly 64 horsepower) motor shouldn't have any trouble keeping up with city traffic. But on the other hand, the car doesn't fly through the air, play VCDs or impress the ladies -- so what's the big deal, then?
SoCal Edison wants to cover California rooftops with solar panels
We've seen a few massive solar farms pop up out west, but it looks like Southern California Edison is taking a different approach: instead of cluttering up the desert, the company plans to build a distributed solar array on the rooftops of commercial buildings throughout SoCal. The plan is to spend $875M over five years to cover about two square miles of rooftop with the panels, which will alleviate stress on the grid by generating around 250 megawatts of juice, as much as a small power plant. That's enough to light up 162,000 homes, but it's still a little short of the record 280-megawatt Solana installation planned in Arizona -- come on, Cali, let's see a little fight.
Ford delivers first of 20 plug-in hybrids in California
Sure, plug-in hybrid tech has been around for a while, but no major manufacturer has stepped up and actually delivered on all the concepts and vague plans we've seen so far -- until yesterday, when Ford delivered the first of 20 plug-in hybrid Escapes to Southern California Edison to begin testing. The handoff, which happened with great fanfare at the EVS23 conference, is the start of a two-year pilot program between Ford and Edison that will eventually have consumers testing the vehicles. For now, the first off the line is being dubbed a "research vehicle," and features a 30-mile electric-only range on a full battery charge. When the battery is depleted, the system switches over to a traditional gas / electric hybrid scheme, which, under ideal conditions, can apparently achieve up to 120mpg. There's a full gallery of the unveiling and the interior over at AutoBlog Green, hit the read link for some eco-friendly love.
Ambient Orb power-usage hack reduces energy consumption by 40%
We've seen some interesting uses for Ambient Devices' various "thin data" products, but Mark Martinez, a Southern California Edison power station manager, has probably hit upon the most interesting application we've seen: by reprogramming the device to reflect energy usage and costs, customers in his 120-person test program managed to reduce their energy consumption by 40 percent. Martinez chalks the results up to the "sentinel effect," saying that ""It's nonintrusive. It has a relatively benign effect. But when you suddenly see your ball flashing red, you notice." Ambient Devices actually sells a similar product called the EnergyJoule, and we've seen some other monitoring attempts before, but we think we like Martinez's hack better -- it brings a little mod flair to living green. Hopefully he'll let us know how he did it soon.[Via Inhabitat]
