Cambridge, Massachusetts, has signed the largest-ever virtual power purchase agreement (VPPA) by a US city to help build a utility-scale solar farm in Illinois.
The 135 megawatt (MW) project on 800 acres in Champaign County, called Prairie Solar, will add clean energy to the grid, and Cambridge will earn renewable energy certificates (RECs) for making it possible.
These credits will benefit residents and businesses enrolled in Cambridge’s Community Electricity Program, which already offers stable and competitive electricity rates. This marks Cambridge’s second major renewable energy deal, following last year’s VPPA for a wind farm in North Dakota. Together, these projects are accelerating the city’s efforts to cut carbon emissions more effectively than waiting for the Massachusetts grid to go fully renewable by 2050.
Dennis Carlberg, chief sustainability officer at Boston University, said, “Since the New England Grid is one of the cleanest in the country, and these projects are in grids slower to transition, they should reduce nearly twice the global greenhouse gas emissions than if the same projects were located in the greening New England grid. This is truly remarkable work that I hope others will replicate.”
Why solar in Illinois?
The Prairie Solar project, expected to come online in summer 2026, will be built near a former coal mine. Illinois residents will benefit from new jobs, local investment, and improved air quality on top of the clean electricity the project will generate.
Julie Wormser, Cambridge’s chief climate officer, put it this way: “Preventing carbon emissions in Cambridge or Illinois has the exact same impact on the global climate. It will allow us to make a bigger difference more quickly and cheaply than, say, pursuing smaller rooftop solar within city limits while providing local benefits to people in Illinois.”
This approach also helps Cambridge reach its sustainability goals without being limited by its small size and dense urban footprint. With 120,000 people in just 6.5 square miles, there isn’t enough space for the city to generate all its own power locally. That’s where strategies like VPPAs come into play.
Ellen Katz from Cambridge’s Department of Public Works explained the logic: “Renewable projects, like this VPPA, make the most difference because they replace more carbon-intensive fuel sources, like coal, compared to Massachusetts, where most of the electricity is fueled by natural gas.”
How Cambridge’s VPPA works
Cambridge’s 50 MW virtual power purchase agreement doesn’t send electricity directly to the city. Instead, it commits to purchasing renewable energy certificates from the project, which helps the developer secure financing to build the solar farm. The Prairie Solar project will be owned and operated by renewable company MN8 Energy, while Sustainability Roundtable Inc. facilitated the deal through their Net Zero Consortium for Buyers.
When Prairie Solar comes online, more than half (55%) of the power in the Standard Green option in Cambridge’s Community Electricity Program will come from renewable energy. Residents can already opt to buy 100% renewable power at a slightly higher rate.
Cambridge’s clean energy strategy
Cambridge isn’t stopping at VPPAs. The city continues to invest in its own backyard with energy-efficient buildings, geothermal systems, and solar installations. Local programs are also helping residents and businesses phase out fossil fuel use.
The city has committed to reaching net-zero emissions by 2050, and a big chunk of its carbon pollution comes from buildings and transportation. While the Massachusetts grid is on track to be 100% renewable by 2050, Cambridge is speeding up the transition by supporting new solar and wind projects where they’re needed most.
Cambridge City Manager Yi-An Huang summed up: “We’re increasing the amount of renewable energy getting built – whether it’s here in Cambridge or other parts of the country.”
What do you think about Cambridge’s big VPPA? Let us know in the comments below.
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Along with Tennessee Tech, Tennessee-based ultralight aircraft company Whisper Aero has secured a $500,000 grant to help advance the company’s innovative electric jet motor concept off the drawing board and onto the testing phase.
Earlier this month, the Tennessee Department of Economic and Community Development (TNECD) announced plans to award $500,000 to Tennessee Tech and Whisper Aero through the Transportation Network Growth Opportunity (TNGO) initiative.
“We look forward to using these award dollars to place students in internships working directly with Whisper Aero leaders,” said Tennessee Tech President Phil Oldham. “By learning from an electric propulsion innovator like Whisper Aero, our students will gain invaluable perspective and can take what they have learned in the classroom and apply it right here in Tennessee.”
The grant will see a Whisper Aero glider fitted with a pair of the company’s eQ250 electric-powered jet “propulsors” for UltraQuiet flight. Tennessee Tech faculty and students will carry out copper-bird ground testing to ensure the safe integration of engines, batteries, and controllers, and kickstart Tennessee Tech’s new Crossville Mobility Incubator.
Whisper Aero’s main claim to fame is its innovative UltraQuiet WhisperDrive (above). It’s effectively an electrically spun ducted fan jet engine that uses a large number of stiff composite fan blades inside a lightweight, acoustically treated duct. With so many blades, the Whisper Aero propulsor can push more air than a conventional prop while spinning much more slowly. As such, the “blade passage frequency” moves up to more than 16,000 Hz – outside the range of most human hearing but not, supposedly, high enough to freak out the beagles.
The Whisper Aero ultralight is effectively an Aériane Swift3 glider fitted with a pair of Whisper’s eQ250 propulsors, each capable of up to 80 lbs. of thrust. The Ultralight has a wingspan of over 40 ft with a maximum L/D of 35:1 and can be stressed to a design loading of +6/-4g, making it capable of some pretty impressive acrobatic feats.
The Swift3 glider is designed for a low speed, low power cruising speed of 45–55 knots with “just” 6.5 hp. Power-off glides from a few hundred feet showed a low sink rate, and a climb rate of 1,250 ft/min with full self-launching power (in other words: the Whisper glider doesn’t have to be towed by a launch vehicle, like a conventional ultralight glider).
Quiet cool
Dual WhisperDrive fans deliver ~160 lbf of thrust; via Whisper Aero.
Range under full power is about 109 miles with current battery tech, but it’s expected that range under the latest EPiC 2.0 energy batteries would rise to nearly 170 miles.
Nathan Millecam, CEO of Electric Power System, said, “EPiC 2.0’s leap in energy density and thermal performance has enabled a significant increase in range, a clear validation of our next-gen cell technology. We are impressed by what the Whisper team continues to achieve in advancing electric aviation.”
The press release concludes explaining that flight tests are expected to show that the Whisper Aero glider can be flown, “a few hundred feet away from neighborhoods without any disturbances, while carrying a 220 lbs. payload with full range,” which is all kind of ominous in today’s political climate, but still pretty neat from a purely tech perspective.
With support from TNECD’s Transportation Network Growth Opportunity (TNGO) initiative, Tennessee Tech University and Whisper Aero are partnering to advance next-generation propulsion technology in the aerospace industry. This collaboration will enhance aerospace research and workforce development, ensuring Tennessee remains a leader in cutting-edge mobility solutions.
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A Tesla Cybertruck owner believed Elon Musk’s claims that the Cybertruck would be able to “act as a boat” and “cross rivers”, and he got his $100,000 stuck because of it.
Elon Musk has often made claims about how Tesla vehicles could float and briefly serve as a boat in the past.
We have never been taken too seriously because Tesla’s warranty states something different about taking the vehicle into water.
However, the CEO doubled down on the claim specifically for the Cybertruck.
Cybertruck will be waterproof enough to serve briefly as a boat, so it can cross rivers, lakes and even seas that aren’t too choppy.
The CEO added that the goal is for a Cybertruck to be able to cross the water between SpaceX’s Starbase and South Padre Island in Texas, which is about 360 meters (1,100 feet).
We have been taking the Cybertruck more seriously with water because we learned that Tesla built a ‘wade mode’ for the truck to be able to go into the water. Tesla says the mode increases the ride height to the max and temporarily “pressurizes the battery pack.”
The problem is that it is activated through the off-roading mode, which is not covered under Tesla’s warranty – so we are taking everything with a grain of salt.
Whenever Tesla’s warranty contradicts what Musk says, it is better to follow to the warranty.
A Tesla Cybertruck owner in Truckee, California, appears not to have received this sage advice since they activated the wade mode and attempted to get into the water.
The Cybertruck owner quickly got stuck. The local California Highway Patrol (CHP) shared some pictures of the aftermath (via Facebook):
CHP Truckee helped with the recovery and commented on the incident:
Cybertruck activated “Wade Mode”… and waded a bit too far… We’re all for testing boundaries… but maybe not the waterline. Remember folks, “Wade Mode” isn’t “Submarine Mode.” If your plans include exploring the great outdoors, make sure to know your limits and the terrain.
There’s no detail on the damage to the Cybertruck, if any.
At the risk of stating the obvious, this is clearly more of a user error than a Cybertruck problem.
I think the verdict is clear: Cybertruck is far from the best electric pickup truck for off-roading.
However, in general, you shouldn’t expect a truck to get out of water on a muddy bank.
I think a lot of Cybertruck owners are new to trucking and off-roading, and they are making the truck look worse than it is at off-roading.
If you want to take your Cybertruck off-road, I recommend to first go with an off-roading guide that can help avoid some simple mistakes like this.
Also, in general, don’t take Elon Musk’s claims at face value when he says that Tesla vehicles can do something that sounds like an exaggeration. It probably is an exaggeration.
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The latest Chinese EREV to arrive in the west, the Omoda 9 SHS crossover hopes to shake things up in the hyper-competitive class with a top-shelf tech package, more horsepower than a Porsche 911 GT3, and a €39,900 price tag.
Established in 2022 as an upscale electric sub-brand by the Chinese car giant, Chery, Omoda has global ambitions – a fact that’s underscored by launch of the new Omoda 9 SHS (for “Super Hybrid System”) SUV shown here. And, with up to 535 hp in the top EU-market trim, Spanish auto enthusiast site Motorpasión reports that nothing cheaper is more powerful.
To put those 535 hp into context, Porsche’s motorsports-focused 911 GT3 supercar generates “just” 502 from its 4.0L flat-six engine. The Omoda’s 535, meanwhile, are generated by a single electric motor powering the SHS’ front wheels and a pair of electric motors at the rear – good enough to rocket the SUV from 0-62 mph (100 kmh) in just 4.9 seconds.
Under the hood
Omoda 9 SHS under the hood; via Omoda.
The SHS version of the Omoda packs a 34.46 kWh battery pack that lets Omoda 9 SHS go 145 km (a little over 90 miles) on pure electric power. Once the battery is depleted, the 1.5 liter turbocharged ICE unit (shown, above) kicks on, providing an additional 935 km of driving for a combined 1,100 km of “range” from a full tank and battery.
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That said, this is a PHEV/EREV with more than enough all-electric range to handle all but the most extreme of edge-case daily driving needs – and, as such, Omoda expects the 9 SHS it to be used more like an EV. To that end, it’s capable of DC fast charging at up to 65 kW, charging from 20% to 80% in under 30 minutes.
Omoda execs, for their part, seem pretty proud of themselves. “The OMODA 9 represents a significant advancement for our brand, embodying modern living with its beautiful design, intelligent engineering, and usable technology,” says Victor Zhang, UK Country Director for OMODA. “Our SHS technology demonstrates the progress in hybrid vehicles, offering performance, range, and seamless integration into daily life. We believe the OMODA 9 delivers the comfort, power, and quality that today’s drivers expect.”
To meet those expectations, the Omoda 9 SHS offers drivers a dual 12.3″ curved screen display, a 540° rear-view camera, and a Sony sound system with HD speakers integrated into the front seats’ Nappa leather headrests. Those leather seats also feature fully electric adjustment, as well as heat, fan, and massage functions.
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