At Elm Branch Solar Farm, about an hour south of Dallas, Texas, a flock of sheep grazes among a vast field of solar panels. The flock’s shepherd, Amanda Stoffels, watches over it as the sheep munch on the grass and nap in the shade provided by the panels.
Stoffels owns this land, but leases it to Lightsource BP, a major solar energy developer that’s 50% owned by British oil major BP. She earns a steady monthly income from the lease payments as well as through her grazing contract with Lightsource, which pays her to graze her sheep around the panels, thereby keeping vegetation in check.
“It’s a new, modern approach to agriculture,” Stoffels says. Her contracts with Lightsource allowed her to quit her 9 to 5 job to become a full-time shepherd.
An emerging industry called agrivoltaics combines solar energy production with agricultural activities such as sheep grazing, beekeeping and crop growing. This land management strategy could help alleviate the tension between farmers and solar developers, groups that often have competing land-use interests.
“Even though the United States is a very large country with a lot of available land, every single square inch of land is either owned, protected or cherished by someone or many people. And many people do not want to see that land change or transform into something different from what it has been,” explained Jordan Macknick, the Lead Energy-Water-Land Analyst for the National Renewable Energy Laboratory.
Agrivoltaic projects, Macknick says, could be a sort of compromise. “So agrivoltaics really offers us that opportunity to continue farming, continue doing these agricultural activities while also producing clean electricity.”
Amanda Stoffels feeds her flock of sheep at Elm Branch Solar Farm in Ellis County, Texas. Stoffels earns money by leasing her land to solar developer Lightsource BP and grazing her sheep around the panels.
Juhohn Lee
Crop growing on solar farms is still a nascent area of research and some farmers still have concerns.
“Solar takes some of the best land out of production because they want land that’s 1% to 4% slope,” explained Tom Koranek, a landowner and beekeeper who leases land to Lightsource and produces honey on the solar farm. That flat, treeless land is ideal for both solar panels and crop production, he says.
Still, agrivoltaic projects are as close to a win-win for farmers and solar developers as we currently have, and as the solar industry rapidly expands, experts say we can expect to see agrivoltaics expanding right alongside it.
Opening up new markets
The nation will need to build out a massive amount of utility-scale solar to meet its decarbonization goals. Given that agricultural land comprises 44% of the U.S.’ total land area, many solar developers are looking to cite new projects on farms.
“For solar developers, I think the attraction of agrivoltaics is largely that it helps with community acceptance and community excitement about solar projects” explains Becca Jones-Albertus, Director of the U.S. Department of Energy’s Solar Energy Technologies Office. “Grazing land in this country is about a third of all of our land use. And if you’re able to make that a dual use with solar energy production, you have now opened up a huge potential market space that wasn’t open before.”
Today, the U.S. has about five gigawatts of agrivoltaic projects, encompassing more than 35,000 acres across over 30 different states. While this only represents about 3% of the country’s installed solar capacity, it’s a growing industry, and farmers are taking note.
“It’s a much better financial contribution than growing crops,” said Koranek about leasing his land to Lightsource. “Crops are very risky. So some years you may make a good return and other years you may not. And so this is a steady income year every year.”
Landowner and beekeeper Tom Koranek shows off the honey he produces at Briar Creek Solar Farm in Navarro County, Texas.
Katie Brigham
Lightsource operates a combined 615 megawatts of sheep grazing and solar power projects, around 12% of the nation’s entire agrivoltaic portfolio. The company plans to add an additional 1,058 megawatts worth of projects next year.
Shell is also involved in the space through its 44% stake in solar developer Silicon Ranch. The ranch operates 1,300 megawatts of agrivoltaic projects with an additional 900 megawatts planned over the next two years.
While most solar developers opt to lease land, Silicon Ranch buys it outright, often purchasing degraded farmland that’s no longer in production.
“We want to tell these communities that we are committed for the long haul, and we’re going to become members of these communities in meaningful ways,” said Silicon Ranch’s Co-Founder and CEO, Reagan Farr. “So our business model of owning real estate was a function of how we viewed this asset class.”
Like Lightsource, Silicon Ranch pays local ranchers to graze sheep on their solar farms. But Farr says the company has encountered a sheep shortage, leading Silicon Ranch to invest in its own flock, which it plans to grow to over 30,000 by 2030.
While there are other players in the domestic agrivoltaic market such as Enel Green Power and US Solar, Lightsource and Silicon Ranch remain the largest players in the space. American oil majors such as Chevron and Exxon haven’t invested in agrivoltaics.
Solar plus crop production
While it’s relatively well understood how to graze sheep and create pollinator habitats among solar panels, it’s a trickier prospect to grow crops below and between the panels.
Many crops such as tomatoes and broccoli can theoretically grow beneath solar panels, but the design of the solar array usually needs to be altered, often by elevating the panels so that crops can reach their full height. That gets costly, and while the economics can work for small-scale projects in markets with strong solar incentives, scaling up is a challenge.
“I would say given the existing cost of PV technology, given the existing energy markets that we have in the United States, it will be very challenging to see crop production agrivoltaics happen at a scale bigger than five megawatts at a time,” says Macknick.
But even if we won’t see utility-scale crop production and solar energy projects anytime soon, there’s still a lot of energy in this space. The Department of Energy is currently funding six agrivoltaic projects, with the goal of enabling the deployment of over 1 megawatt of projects focused on crop production, and over 10 megawatts of projects focused on grazing and pollinator habitats.
Lightsource BP says it’s interested in getting into crop production, hoping that one of its sites can serve as a test project next year. Farr says Silicon Ranch isn’t pursuing partnerships yet. But whatever route both companies, and their oil industry backers, take, community relationships and mutually beneficial land-use arrangements are going to be paramount.
“We need to bring value to the communities where we site these solar arrays, or we’re going to lose our social license to operate. And that’s going to hurt our ability to meet some of these very aggressive, renewable energy goals that we have as a country,” said Farr.
Owner-operators are a huge part of the heavy truck market, and they’ve been among the most hesitant groups to transition from diesel to electric semi trucks. That may be changing, however, as Saldivar’s Trucking becomes first independent owner-operator in the US to deploy a Volvo VNR Electric Class 8 truck.
The higher up-front cost of electric semi trucks has been a huge obstacle for smaller fleets. That’s there are incentives from governments, utilities, and even non-profits to help overcome that initial obstacle. And the smart dealers are the ones who are putting in the hours to learn about those incentives, educate their customers, and ultimately sell more vehicles.
TEC Equipment is a smart dealer, and they worked closely with South Coast Air Quality Management District to secure the CARB funding and ensure Saldivar’s was able to ssecure $410,000 in funding from CARB’s On-Road Heavy-Duty Voucher Incentive Program (HVIP), which provides funding to replace older, heavy-duty trucks with zero-emission vehicles. The program is directed exclusively to small fleets with 10 vehicles or less that operate in California and aims to bridge the gap between the regulatory push for clean transportation and the financial realities faced by small business owners.
“TEC Equipment has been instrumental in supporting owner-operators like Saldivar’s Trucking through the transition to battery-electric vehicles,” explains Peter Voorhoeve, president of Volvo Trucks North America. “Their dedication to providing comprehensive support and securing necessary funding demonstrates how crucial dealer partners are in turning the vision of owning a battery-electric vehicle into a reality for fleets of all sizes.”
Saldivar’s Volvo VNR Electric features a six-battery configuration, with 565 kWh of storage capacity and a 250 kW charging capability. The zero-tailpipe emission truck can charge to 80% in 90 minutes to provide a range of up to 275 miles.
“While large fleets often make headlines for their ambitious investments in battery-electric vehicles, nearly half of the 3.5 million professional truck drivers in the U.S. are owner-operators running their businesses with just one truck,” adds Voorhoeve. “These small operations face unique challenges, from the initial capital investment to securing adequate charging infrastructure … this collaboration is a perfect example of the important role to be played by truck dealers and why stakeholders need to work together to succeed in this new era of sustainable transportation.” We need solutions that work for different fleets of all sizes in the marketplace,” added Voorhoeve.”
Electrek’s Take
Electrifying America’s commercial trucking fleet can’t happen soon enough – for the health of the people who live and work near these vehicles, the health of the planet they drive on, and (thanks to their substantially lower operating costs) the health of the businesses that deploy them. TEC is doing a great job advancing the cause, and acting as true expert partners for their customers.
Mercedes released a look at the powertrain technology of its upcoming electric CLA, and it includes tons of neat EV tech and some interesting options for battery technology and what looks to be the most flexible charging system we’ve seen yet.
We’ve already learned a fair amount about the CLA after first seeing the concept last year, and Mercedes released a few new specifics today regarding its powertrain.
In keeping with previous information we knew, the CLA is targeting extremely high efficiency of 12kWh/100km, which translates to just 193Wh/mi or 5.2mi/kWh. That’s more efficient than anything else on the road today – with Lucid’s Air Pure reaching 200Wh/mi, or 5mi/kWh. And just less than what Tesla is claiming the Cybercab will be capable of, at 5.5kWh/mi.
This is thanks to Mercedes’ new compact EDU 2.0 electric motor, which is part of its new Mercedes Modular Architecture (MMA) which will underpin its upcoming electric vehicles. The drive motor will be 200kW on the rear axle, though all-wheel drive models will be available with an additional 80kW unit on the front axle. A two-speed transmission will ensure efficiency at high speeds and low.
For more efficiency in cold weather, the CLA will use an air-to-air heat pump which is able to capture heat from the motor, battery, and ambient air to heat the cabin. While batteries and motors don’t make nearly as much waste heat as inefficient ICE engines, it’s still good to be able to channel heat to wherever you need it.
Mercedes says that the CLA will come equipped with a choice of two different batteries, each with different chemistries.
The larger 85kWh model will be capable of an unnecessarily-high 750km (466mi) of WLTP range – though WLTP numbers are always higher than EPA numbers, so expect something in the high-300s in EPA parlance. This battery will add silicon oxide to the anode for higher energy density, a technology that has been pioneered by Sila Nanotechnologies, a company which Mercedes is a lead investor in.
The smaller battery will be 58kWh, and will use lithium iron phosphate (LFP) chemistry. LFP is a cheaper but lower energy density technology, with higher long-term durability and simpler sourcing of minerals (it uses no cobalt, whereas Mercedes says cobalt has been “reduced” in the larger batteries). However, LFP generally has slower fast charging and cold weather performance.
On charging: the “premium” battery will have an 800V configuration capable of up to 320kW charging speeds. Mercedes says this can add 300km (186mi) of range in 10 minutes, and also says that the car will have a broad charging curve, which means you’ll get high charge rates even if the battery isn’t close to empty. It didn’t specify if the smaller LFP battery will have the same charge rate.
This high charging rate allowed Mercedes to set a record traveling 3,717km (2,309mi) in 24 hours at the Nardo test track in Italy in a pre-production CLA. That’s an average travel rate of 96mph – including time spent charging.
We also learned something about Mercedes’ NACS adoption plans. While just about everyone has committed to transitioning cars to NACS, it has taken longer than expected (largely due to Tesla’s chaotic CEO firing the whole supercharger team for little reason), and few cars have native NACS inlets yet. Some brands can already charge at Superchargers with adapters, but Mercedes is still on Tesla’s “coming soon” page.
As a result of delays in onbaording automakers, some seem to have pulled back on their plans, pushing NACS ports to later model years. But Mercedes has a new and unique solution – it will just put both CCS and NACS ports on the CLA, right on top of each other.
Mercedes says “in the future, new entry-level models will be capable of bidirectional charging,” but isn’t clear whether this model will be capable of that.
Electrek’s Take
While this is short of a full release of specs, we’re excited by what we see here. Mercedes seems to confirm that they’re meeting the efficiency goals they set out, and we like that they’re offering a variety of options and taking advantage of some newer EV tech like 800V charging infrastructure.
The inclusion of both NACS and CCS is very interesting, again offering options to owners during the transition. That seems to be the big message from Mercedes here – we’re not going to just pick one tool, we’re going to use all of them.
But pricing and availability are obviously big questions, as is design.
The concept looks fantastic, but concepts always change on their way into production. The shape of the camouflaged test vehicle is very different – but looks to have some shrouding on the front and back to hide its shape, so we’ll have to wait until we see this thing unveiled for more.
And as for pricing – Mercedes says the CLA will be an “entry-level” car, but who knows what that means anymore these days. The base ICE CLA starts at around $44k currently, so lets see if they can hit that number.
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Daimler Truck North America has helped alcohol distributor Reyes Beverage Group deploy fully 29 zero-emission Freightliner eCascadia Class 8 electric semi trucks in its California delivery fleet.
Reyes Beverage Group (RGB) plans to deploy the first twenty Freightliner electric semi trucks at its Golden Brands – East Bay and Harbor Distributing – Huntington Beach warehouses, marking the first phase in the company’s transition to a fully zero emission truck fleet by 2039. An additional nine eCascadia Class 8 HDEVs are scheduled for delivery to RBG’s Gate City Beverage – San Bernardino warehouse before the end of 2024.
RBG’s decision to adopt the Freightliner eCascadia builds on its recent transition to renewable diesel and its ongoing idle-time reduction program. These electric vehicles (EVs) “go electric” will contribute significantly toward the company’s stated goal of reducing its carbon emissions 60 percent by 2030. These 2 trucks will save some 98,000 gallons of diesel fuel annually, and avoid putting nearly 700 metric tons of carbon dioxide and other harmful emissions into California’s air each year.
“We are excited to be among the first in our industry to adopt these electric vehicles,” explains Tom Reyes, President of RBG West. “This is a significant step toward our sustainability goals and ensuring compliance with state regulation as we transition our fleet to EV.”
Freightliner’s eCascadia electric semi trucks offer a number of battery and drive axle configurations with ranges between 155 and 230 miles, depending on the truck specification, to perfectly match customers’ needs without compromising on performance and load capacity. RBG’s Freightliner eCascadia tractors will rely on electric charging stations installed at each facility, allowing them to recharge to 80% capacity in as little as 90 minutes for RGB’s trucks, which feature a typical driving range of 220 miles as equipped.