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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.

Read more: Wisconsin’s most powerful solar farm just got the go-ahead


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E-quipment highlight: Komatsu PC20E-6 electric mini excavator

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E-quipment highlight: Komatsu PC20E-6 electric mini excavator

Japanese equipment giant Komatsu has added a not-so-giant electric excavator to its growing lineup of battery-powered construction equipment. The new Komatsu PC20E-6 electric mini excavator promises a full day of work from a single charge.

Komatsu says the design of its latest mini excavator was informed by data sourced from more than 40,000 working days of comparably-sized diesel excavators. The company found that, in 90% of its global customers’ mini excavator deployments, these vehicles are in active use for less than 3.5 hours per day.

“This defined the target for the required, reliable working time with the excavator,” reads the Komatsu web copy. “This result makes it possible for Komatsu to offer an attractively priced machine with a performance that exactly matches the requirements.”

Keeping costs down are relatively conservative specs. Komatsu chose to power the PC20E-6 with a 23.2 kWh battery pack sending electrons to an 11 kW (~15 hp), high-torque electric motors. Not exactly super impressive on paper, but the machine has an operating weight of 2,190 kg and enough juice for up to four (4) hours of continuous operation.

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More than enough, in other words, to have completed 90% of of those 40,000 work days the company analyzed.

Getting it done


PC20E-6 electric mini excavator; via Komatsu.

If, for some reason, that four hours’ runtime isn’t enough, an on-board charging option for 230V and 3kW charging power compatible with various plug adapters is standard, with an external DC quick charger for 400V and 12 kW charging as optional. In either case, it won’t be long before the machine is back at work.

To help the later adopters sleep well about their battery-powered investments, the PC20E-6 ships with Komatsu’s E-Support maintenance program, which includes free scheduled maintenance by a Komatsu-trained technician, a 3 year/2,000 hour warranty on the machine, plus a 5 year/10,000 hour warranty on the electric driveline. The company says the battery should last 10 years.

“The Komatsu E-Support customer program is included free of charge with every market-ready electric mini excavator and offers exclusive machine support,” said Emanuele Viel, Group Manager Utility at Komatsu Europe. “The bottom line is that the risk for the end customer is significantly reduced, especially when it comes to exploring the electrification advances in the industry.”

Komatsu hasn’t released official pricing quite yet, but has revealed that the P20E-6 will begin series production this October.

SOURCE | IMAGES: Komatsu.


If you’re considering going solar, it’s always a good idea to get quotes from a few installers. To make sure you find a trusted, reliable solar installer near you that offers competitive pricing, check out EnergySage, a free service that makes it easy for you to go solar. It has hundreds of pre-vetted solar installers competing for your business, ensuring you get high-quality solutions and save 20-30% compared to going it alone. Plus, it’s free to use, and you won’t get sales calls until you select an installer and share your phone number with them. 

Your personalized solar quotes are easy to compare online and you’ll get access to unbiased Energy Advisors to help you every step of the way. Get started here.

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Tesla unexpectedly ends contract at Giga Texas, letting go 82 people

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Tesla unexpectedly ends contract at Giga Texas, letting go 82 people

Tesla has unexpectedly terminated a contractor’s contract at Gigafactory Texas, resulting in the layoff of 82 workers who were supporting the automaker’s production at the giant factory in Austin.

MPW Industrial Services Inc., an Ohio-based industrial service provider specializing in cleaning and facility management, has issued a new WARN notice, confirming that it will lay off 82 workers in Texas due to Tesla unexpectedly ending its contract with the company.

Here are the details from the WARN notice:

  • State / agency: Texas Workforce Commission (TWC).
  • Notice date: August 27, 2025.
  • Employees affected: 82
  • Likely effective date: September 1, 2025
  • Context from the filing/letter: layoffs tied to an unexpected termination of a major customer contract (Tesla—Gigafactory Texas, 1 Tesla Road); positions include 61 technicians, 7 team leads, 7 supervisors, 7 managers; no bumping rights; workers not union-represented.

In April 2024, Tesla initiated waves of layoffs at the plant, resulting in the dismissal of more than 2,000 employees in Austin, Texas.

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Since then, Tesla’s sales have been in a steady decline. While the automaker is expected to have a strong quarter in the US in Q3 due to the end of the tax credit, sales are expected to decline further in Q4 and the first half of 2026.

Many industry watchers have expected Tesla to initiate further layoffs due to the situation.

Electrek’s Take

We may be seeing the beginnings of a new wave of layoffs at Tesla, as the automaker typically starts with contractors.

To be fair, Tesla could also potentially end the contract unexpectedly for other reasons, but the timing does align with the need to cut costs and staff ahead of an inevitable downturn in US EV sales.

I think it’s inevitable that we start seeing some layoffs. I think Tesla will have to slow down production in the US to avoid creating an oversupply, especially in Q4-Q1.

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After e-bike fury, suburban pearl-clutchers set their ire on golf carts

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After e-bike fury, suburban pearl-clutchers set their ire on golf carts

First, it was e-bikes, offering an efficient, effective, and low-cost way for teens and just about everyone to zip around town, yet drawing the temper of suburban traditionalists. Now golf carts are the new public enemy number one in suburbia, at least if you ask the growing number of online groups where residents complain about these small electric vehicles “clogging” their streets.

But beyond the hand-wringing, golf carts and their more sophisticated cousins known as Neighborhood Electric Vehicles (NEVs) or Low Speed Vehicles (LSVs), are quietly becoming a popular alternative to cars for short trips around US cities and suburbs.

While most people still associate golf carts with retirement communities in Florida or slow rides across 18 holes, street-legal versions have been around for the last few decades.

But these aren’t your grandpa’s bare-bones carts, complete with a golf pencil clip. Many now come with DOT seat belts, lights, turn signals, mirrors, backup cameras, and speed limiters that allow them to operate legally on roads up to 35 mph, as long as they meet all the federal requirements for Low-Speed Vehicles (LSVs).

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That means such vehicles are legally allowed to operate like cars, trucks, bicycles, or motorcycles on the vast majority of residential streets and a surprising portion of urban grids. In other words, for grabbing groceries, school drop-offs, or cruising to a friend’s house, they’re a practical, cheaper, and far greener substitute for firing up a 5,000-pound SUV.

The Club Car Cru adds extra luxury to the concept of an LSV

Golf carts have been slowly taking off for years, but the pandemic accelerated the trend. Sales of golf carts and LSVs spiked as families looked for safe, outdoor transportation and an easy way to get around their neighborhoods. Now, in cities all over the country, the sight of parents driving their kids to school or running errands in a cart is increasingly common. In some towns, petitions have even popped up with hundreds of residents asking for local ordinances to legalize them on more streets, according to the Daily Mail.

Of course, not everyone is thrilled. There’s growing backlash against the increase in golf carts on streets, with many residents calling them a “plague” and complaining that they’re taking up space on the roads, in parking lots, or creating unsafe conditions. While rare, there have been serious accidents too, with a handful of tragic cases highlighting the dangers of mixing small, lightweight carts with full-size vehicles. Critics argue that carts lack the crash protection of cars and don’t always fall under homeowners’ insurance policies if an accident happens.

But for every critic, there’s a supporter pointing out that golf carts take cars off the road, save money on fuel, and are no more dangerous than scooters or e-bikes – modes of transport that already share the streets. And major golf cart makers have been happy to respond to the demand with boosted sales and new models. Companies like E-Z-GO, Club Car, WAEV, Kandi, and others are all rushing new models to the market as more suburban commuters discover that their next electric vehicle might just cost a fraction of what they thought it would – and come with a better breeze, too.

The GEM microcars are classic LSVs that have brought smiles to families’ faces for decades

Electrek’s Take

If I didn’t know any better, I’d say it’s like the Karens are just following me around to poo-poo on any alternative vehicle I happen to drive that week. They’ve hit all my favorites. Pretty soon, they’ll be coming for my electric tractors, too!

But seriously, this feels like déjà vu. The same arguments we’ve heard for years against e-bikes are now being recycled against golf carts: too unsafe, too disruptive, too “different” from the car-centric status quo.

But the reality is, again, quite the same as e-bikes. These are small electric vehicles that make a ton of sense and are totally street legal, at least when they’re built correctly to conform to the proper laws.

They come with a lot of the same benefits, too. They’re cheap to operate, easy to park, perfect for short trips, and they prevent larger cars from needlessly clogging residential streets. Will they ruffle feathers among the kind of folks who have had one too many frisbees land in their yard? Perhaps. But much like e-bikes, their popularity is only going one direction – up.

I leave you with a few images of perhaps my favorite of all, the Kandi Mini. The nay-sayers can pull it from my cold, dead, golf

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