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Recharge Wrap-up: Toyota HQ goes solar, CARB fights methane

Opel denies allegations about illegal emissions software as the German transport ministry begins its review. Opel has turned documents over to German authorities, and promises to hold a "constructive dialogue" while answering any lingering questions, says the automaker. Opel says that "the allegations reflect a wrong understanding of how diesel engines work." As German magazine Der Spiegel renewed questions about a cheat device similar to those used by Volkswagen, Opel reiterates, "We do not have any software that recognizes whether a vehicle is undergoing an exhaust emissions test." Read more at Automotive News Europe. South Korean President Park Geun-hye suggests that Seoul and Paris work together on the promotion of fuel cell technology. French industrial gases company Air Liquide manufactures liquid hydrogen, while Korean automaker Hyundai has already deployed its Tucson Fuel Cell crossover in select markets around the world. The two companies have signed a deal to cooperate on hydrogen technology. President Park visited an Air Liquide research center during a trip to Europe, where she said that a partnership between Hyundai and Air Liquide can help their countries stay ahead in the fuel cell vehicle market. Read more from Green Car Congress. CARB is proposing new rules for oil and gas facilities that would reduce methane emissions by more than 50 percent. The system, treatment, operation, and device standards would apply to onshore and offshore oil and gas production, storage, processing, and transmission facilities, covering procedures for leak detection and repair, equipment replacement, record keeping, and data reporting. "Methane emissions from the oil and gas industry contribute to California's [greenhouse gas] emissions and cost-effective reduction opportunities already exist and are available for use in the sector," CARB says. "In addition, reducing methane emissions from this sector will help slow the rate of climate change in the near-term and have an immediate beneficial impact on climate change." A hearing is scheduled for July 21 to discuss the proposal. Read more from SNL. Toyota's new Plano, Texas campus will get 25 percent of its energy from the sun. As Toyota plans to move into its new North American headquarters next year, it is building a 7.75-megawatt solar system to provide renewable energy for its operations. The solar arrays will be built atop three parking structures by the end of 2017.

eBay find of the day: Ed Begley's Toyota RAV4 EV

You might know Ed Begley, Jr. from his Emmy-nominated role on St. Elsewhere or as one of the dead drummers in This Is Spinal Tap, his appearances on Arrested Development, Six Feet Under, and Battlestar Galactica, his reality show Living With Ed or from his years as an environmental activist (or, better yet, from previous coverage of him on AutoblogGreen). Ed Begley, Jr. has been advocating on behalf of our planet for several decades now, and the man walks the walk, too. He has done loads of work with environmental organizations. He's got his own line of environmentally friendly cleaning products. Begley is even in a long-standing rivalry with his friend Bill Nye (yes, The Science Guy) to have the lowest carbon footprint. Since 2002, he's been driving the drive as well. That's when he purchased a Toyota RAV4 EV, which is now up for auction on eBay. This car has 119,000 miles on it, but it had its battery replaced in early 2011, and it should have another seven years or so left in it. It's white with a charcoal interior, and has a little bit of cosmetic wear and tear, the normal sort of stuff for a vehicle with over 100,000 miles on it. It was in one accident back in 2003, but doesn't show any other issues. All service history is available from the dealer that sold it in the first place and maintained it since. Additionally, this RAV4 EV comes with a White Clean Air Decal, which allows the driver use of the HOV lane in California. Mr. Begley will even autograph the inside of the hood if you want him to, but it's doubtful the car comes with a Cinco-Fone. The buyer will also get to meet Begley is person and get some photos. Back in 2002, the car sold for $42,000. The current bid is $4,650 with six days to go, and the reserve has not yet been met. Check out the auction for more details.

Mazda-Toyota partnership has us dreaming of a rotary hybrid

As you may have seen, Mazda and Toyota are going to be working a little more closely with each other. In their announcement, the two companies said they'd be building an American assembly plant together, and working on electric vehicle technology. But one of the companies' goals got our mental gears turning: It's listed as "Expand complementary products," and it's left very open-ended. The companies say they "will further explore the possibilities of other complementary products on a global level." These are in addition to Mazda providing the Mazda2 to Toyota as the Yaris iA, and Toyota providing Mazda a commercial van to sell in Japan. So what could these future complementary products be? We have a couple of ideas, one that's ludicrous but awesome (and, sadly, probably won't ever happen), and the other grounded in reality. Let's start with the fun one. What's the one thing Mazda fan has been wanting for years? A rotary sports car, of course! And while Mazda has repeatedly said that it has a small band of engineers plugging away at the spinning triangle problem, the odds of Mazda putting it into production have been slim. The inherent thirst of the rotary would make it tough to introduce when fuel economy regulations have been tightening. Plus, Mazda is a small company that needs to stretch every dollar, and having a one-off engine not based on anything else would be expensive. How could Mazda get around these obstacles? This is where the partnership with Toyota comes in, in our long-shot fantasy. Aside from having deep pockets, Toyota has a wealth of knowledge in the realm of hybrids. Thus, why not a rotary hybrid? Electrifying their oddball motor would fix two issues. One is obviously the fuel economy, since the gas engine wouldn't have to run all the time. The other is in providing torque. Rotaries infamously have little torque, especially down low, so adding an electric motor would allow this hypothetical rotary sports car to have a grunty low end, while still providing the Everest-high redline rotary fans like. The idea would be sweetened with the solid-state batteries that Toyota is developing, which could provide lots of electricity without weighing a ton. The rotary-electric mashup notion isn't totally alien to Mazda, either, since the company created an electric Mazda2 with a rotary engine for a range extender — albeit for different reasons. The company even filed a patent for the rotary range extender recently.