Floating Solar Plus Wave Energy Smackdown For Fossil Fuels
Everybody is talking about a new EU clean power project that pairs floating solar with offshore wind turbines, but they’re missing half the story. Wave energy is also part of the project. The wave part is not getting much attention, probably because wave-to-electricity conversion has fallen behind wind and solar in the renewable energy race. Nevertheless, if all goes according to plan, the waters of the EU will be peppered with wave conversion devices as well as floating solar panels.
More Offshore Solar & Wind Turbines With Wave Energy, Too
The EU project is tackling the problem of how to make room for new offshore energy industries in busy coastal waters. Finding sites for new offshore wind farms can be a tough row to hoe, as offshore wind fans in the US can testify.
The new project is called EU-SCORES for “European SCalable Offshore Renewable Energy Sources.” The idea is to pair wind turbines with other clean power systems, with the aim of reducing the overall footprint of marine energy development.
EU-SCORES comes under the umbrella of the Dutch Marine Energy Centre, which will assess two sites for hybrid marine energy systems. One is a solar-plus-wind site in Belgium, which has been getting a lot of attention, and rightfully so. Floating solar is a relatively new idea that has been catching on fast for application to inland water bodies including reservoirs as well as natural lakes and ponds. The idea of setting solar panels afloat in the open sea poses new technology challenges.
In that regard, EU-SCORES shares some similarities with the CrossWind offshore wind project under way in the Netherlands, which is also on track to receive floating solar panels.
However, EU-SCORES seems to be taking a much more aggressive approach to hybridizing offshore wind farms. As DMEC describes it, the “full-scale demonstrations are intended to prove how the increased power output and capacity installed per km2 will reduce the amount of marine space needed, thereby leaving more space for aquaculture, fisheries, shipping routes and environmentally protected zones.”
“Additional benefits achieved by co-using critical electrical infrastructures and exploring advanced operation and maintenance methodologies supported by innovative autonomous systems should lower the costs per MWh,” DMEC adds.
Wave Energy: It’s All About Co-Location, Location, Location
Where were we? Oh right, wave energy. If you caught that thing about co-using, that’s a critical issue for wave energy stakeholders. Translating the infinite, 24/7 motion of waves into electricity is a tantalizing goal, but one of the factors holding back the wave energy field is the relatively high cost of shunting clean kilowatts from seagoing wave energy generators over to coastal communities.
Back in 2014, the United Nations’ International Renewable Energy Agency took a look at the wave energy field and recorded 100 projects around the world, all of which were still in the pilot and demonstration phases. The early-stage nature of the technology made it difficult to project future costs for commercial-level projects. However, IRENA did come up with the figure of 22% for the proportion of lifetime costs that could be ascribed to power take-off systems.
IRENA also estimated that installation, operation, and maintenance, and mooring would account for another 41% of lifetime costs for wave energy projects. Co-location with offshore wind turbines would presumably shave away some of those costs as well.
About Those Locations…
Another kind of challenge for the wave energy industry is that the recovery potential varies considerably from one place to another. The one-size-fits-all nature of wind turbines and solar panels does not apply as much to the wave energy field, and that has slowed the development of more mature, efficient supply chains.
In 2016, the US Department of Energy’s National Renewable Energy Laboratory looked at the problem and noted that “wave energy technology is still an emerging form of renewable energy for which large-scale grid-connected project costs are currently poorly defined.”
“Ideally, device designers would like to know the resource conditions at economical project sites so they can optimize device designs. On the other hand, project developers need detailed device cost data to identify sites where projects are economical. That is, device design and siting are, to some extent, a coupled problem,” the lab continued.
A New Burst Of Energy For Wave Energy
Regardless of the challenges, wave energy fans have persisted, and it looks like all that hard work is about to pay off. The wave energy harvesting end of the EU-SCORES project is being attached to an offshore wind farm in Portugal, using buoy-type wave harvesting devices developed by the Swedish company CorPower Ocean, as the firm’s Commercial Director Kevin Rebenius is happy to explain.
“We see great value in showcasing the highly consistent and complementary power profile of wave energy, and how this can be combined with wind and solar to deliver a more stable and predictable electricity system based purely on renewables,” Rebenius said.
CorPower Ocean’s contribution to the wave energy field is a pumping system modeled on natural pumps such as those found in the human heart.
According to CorPower, its device can produce 5 times more electricity per ton than other wave energy harvesters, partly by enabling superior performance during calm periods and partly by maintaining performance during storms. Here, let’s have them explain.
“CorPower WECs can harvest the same amount of Annual Energy from a buoy with 1/10 volume compared to conventional point absorber WEC. 1. As comparison, a 300kW CorPower WEC has a diameter of 9m and weighs 60 tonnes. Getting large amounts of electricity from a small device significantly reduces CAPEX. The compact lightweight devices are also less costly to transport, install and service, bringing down OPEX.”
There Had To Be A Green Hydrogen Angle In There Somewhere…
CorPower is aiming to make the case for commercial viability by 2024. Meeting that goal will also provide a boost to other companies involved with EU-SCORES. For those of you keeping score at home, that includes the offshore floating solar company Oceans of Energy along with the familiar names of RWE, EDP, ENEL Green Power, and Simply Blue Group.
EU-SCORES could also add another notch in the belt of green hydrogen fans. CorPower, for one, is already making the pitch.
“The multi-source demonstrations in EU-SCORES will showcase the benefits of more consistent power output harnessing complementary power sources including waves, wind and sun, creating a more resilient and stable power system, higher capacity factors and a lower total cost of the power system. These aspects will also improve the business case for green hydrogen production, by allowing electrolysers to run at higher utilisation,” CorPower enthuses.
For those of you new to the topic, electrolysis refers to electrical systems that pop hydrogen gas out of water. That doesn’t make any sense at all from a climate action perspective if the electricity is sourced from fossil energy, but sub in renewables and the whole picture shifts.
The renewable energy angle is also a rather significant improvement over the current state of affairs, in which the global supply of hydrogen is sourced primarily from natural gas and coal. With the addition of seagoing solar panels and wave energy devices envisioned by EU-SCORES, it looks like end of the fossil grip on the global hydrogen economy is in sight.
Follow me on Twitter @TinaMCasey.
Photo: Array of wave energy harvesting devices, courtesy of CorPower Ocean.
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Ava Community Energy just rolled out a new program in California that pays EV and plug-in hybrid drivers for charging their cars when electricity on the grid is cleaner and cheaper.
The new Ava SmartHome Charging program, launched in partnership with home energy analytics platform Optiwatt, offers up to $100 in incentives in the first year. And because the program helps shift home charging to lower-cost hours, Ava says drivers could save around $140 a year on their energy bills.
EV and PHEV owners who are Ava customers can download the Optiwatt app for free, connect their vehicle, and let the app handle the rest. The app uses an algorithm to automatically schedule charging when demand is low and more renewable energy is available, typically overnight or during off-peak hours.
“Ava is on a mission to provide 100% clean energy to our customers by 2030,” said CEO Howard Chang. “This new program helps us get there by giving people an easy way to charge on more renewable energy while simultaneously saving money.”
Drivers who enroll get a $75 bonus for joining, and can earn an extra $25 per year if they stay enrolled. Optiwatt shifts charging to off-peak times, and it takes into account the customer’s individual schedules and preferences.
Casey Donahue, who founded Optiwatt, says this program is a win for everyone. “We can move a lot of energy use to cleaner, more affordable times by using smart algorithms and the growing EV base,” he said. “That benefits every Ava customer.”
The program is available to most EVs and plug-in hybrids. All it takes is signing up through the Optiwatt app (iOS, Android, or web) and completing a quick verification process. Savings and rewards start right away.
The Oakland-based not-for-profit public power provider aims to enroll at least 5,000 vehicles by the end of 2025. The company says this program is the first step in a broader virtual power plant (VPP) strategy. It’s powered by Lunar Energy’s Distributed Energy Resource Management System (DERMS) platform, Gridshare, which will help Ava coordinate energy from EVs, home batteries, and more.
Ava Community Energy was founded in 2018 and now serves 2 million people in Alameda County, California, and the cities of Tracy, Stockton, and Lathrop.
Read more: California now has nearly 50% more EV chargers than gas nozzles
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Environment
Jeep is teasing the new Grand Cherokee, but where’s the EV version of its best-selling SUV?
The Grand Cherokee is due for a refresh, and we just got our first look at it. Jeep claimed “the next chapter in the story of America’s best-selling full-size SUV begins” after releasing the first official images of the updated model. When will we see the Jeep Grand Cherokee as an EV?
2026 Jeep Grand Cherokee first look
Days after revealing the new Compass, Jeep is teasing another refreshed model, its best-selling Grand Cherokee.
Although it was the best-selling full-size SUV in the US last year, the Grand Cherokee is due for an update. The latest model was launched in 2021, but Jeep added a two-row version in 2022.
It remained Jeep’s top seller in the US last year with over 216,000 models sold, but sales were down 12% compared to 2023. It was also one of the best-selling plug-in hybrid (PHEV) vehicles, with over 27,500 4xe models
Jeep is giving us our first official look at the updated 2026 Grand Cherokee, inside and out. The first image previews the front end, which features new LED headlights and a revamped seven-slot grille, similar to the new Compass.
The interior is restyled with a simplified setup and other minor infotainment and climate control display adjustments. The preview also shows an added passenger screen.
When will Jeep launch the Grand Cherokee EV?
Jeep will continue to assemble the updated SUV in Detroit. The new 2026 Jeep Grand Cherokee will be available as a two-row, three-row L, and a plug-in hybrid 4xe, but when will we see an EV version? The outgoing 4xe model is already one of the top three selling PHEVs in the US, so a fully electric version would make sense.
As part of its 2023 agreement with the UAW, Jeep revealed plans to launch the Grand Cherokee EV in 2027. It was scheduled to be built at the Detroit Assembly Complex, but plans have likely changed since then.
Jeep’s new Compass will be available as an EV, but only in Europe. At least for now. Stellantis halted operations at its Brampton Assembly plant earlier this year, where the Compass is built, as it “reassesses its product strategy in North America.”
For those in the US, Jeep currently offers one EV. The Wagoneer S (pictured on the left above), Jeep’s first global electric SUV, starts at $65,200 and has a range of up to 294 miles.
Later this year, Jeep is expected to launch the Recon EV (pictured on the right above), a rugged electric SUV like a Wrangler.
Jeep is currently offering employee pricing plus an extra $1,500 cash allowance on top of the $7,500 EV tax credit on 2025 Wagoneer S models. If you’re looking to snag some savings, you can use our link to find Jeep Wagoneer S models in your area today.
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Can Kia’s first electric sedan live up to the hype? After launching the EV4 in Korea, we are finally seeing it in action. A new test drive of the EV4 gives us a closer look at what to expect as Kia prepares to take it global. Here’s how it went down.
Kia EV4 test drive: The good, the bad, and the ugly
Kia claims the EV4 will “set a new standard in electric vehicles” with long-range capabilities, fast charging, and a sleek new design.
The electric sedan features a unique, almost sports-car-like profile with a long-tail silhouette and added roof spoiler.
Kia claims it is “the new look of a sedan fit for the era of electrification.” Despite its four-door design, the company is calling it a new type of sedan.
The design is not only eye-catching, but it’s also super efficient. With a drag coefficient of just 0.23, the EV4 is Kia’s most aerodynamic vehicle so far, enabling maximum driving range and efficiency.
Kia opened EV4 orders in South Korea in March, starting at about $29,000 (41.92 million won). It’s available with two battery options: 58.2 kWh and 81.4 kWh. The entry-level “Standard Air” model, powered by the 58.2 kWh battery, is rated with up to 237 miles of driving range.
The “Long-Range Air” variant starts at 46.29 million won ($31,800) and has a driving range of up to 331 miles (533 km) in Korea.
With charging speeds of up to 350 kW, the EV4 can charge from 10% to 80% in around 29 minutes. The long-range battery will take about 31 minutes.
The interior boasts Kia’s latest ccNC infotainment system with a 30″ Ultra-wide Panoramic Display. The setup includes dual 12.3″ driver displays, navigation screens, and a 5″ air conditioning panel.
With deliveries kicking off, we are seeing some of the first test drives come out. A review from HealerTV gives us a better idea of what it’s like to drive the EV4 in person.
Sitting next to Kia’s first pickup, the Tasman, the reviewer mentions the EV4 feels “particularly newer.” The test drive starts around the city with a ride quality similar to that of the K5, if not even better.
As you can see from the camera shaking, the ride feels “a bit uncomfortable” on rough roads. However, on normal surfaces and speed bumps, Kia’s electric sedan “feels neither too soft nor too hard,” just normal. The reviewer calls the EV4’s overall ride quality “quite ordinary” with “nothing particularly special about it.”
When accelerating, the electric car was smooth in the beginning but felt “a little lacking in later stages.” Overall, it should be enough for everyday use.
One of the biggest issues was that the rear window appeared too low. The rear brake lights also stick out, making it hard to see clearly through the rearview.
Keep in mind that the test drive was the Korean-spec EV4. Kia will launch the EV4 in Europe later this year and in the US in early 2026.
In the US, the EV4 will include a built-in NACS port for charging at Tesla Superchargers and a driving range of up to 330 (EPA-est) miles. Prices will be revealed closer to launch, but the EV4 is expected to start at around $35,000 to $40,000.
Would you buy Kia’s electric sedan for around $35,000? Or would you rather have the Tesla Model 3, which starts at $42,490 in the US and has up to 363 miles of range? Let us know in the comments.
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