ALVA Yachts goes long with a 90-foot solar electric superyacht boosted by hydrogen and wing sails
Luxury electric boatbuilder ALVA Yachts is doing what many in the maritime industry consistently strive toward – building vessels bigger and better. Its latest solar electric catamaran is a 90-foot superyacht called the OCEAN ECO 90 H2 – in addition to zero-emissions propulsion and sustainable power, it adds hydrogen fuel cells and a wing sail propulsion system to alleviate any need for fuel aboard. Oh, don’t forget the jacuzzi up top.
ALVA Yachts is a German company founded in 2020 by Mathias May and Holger Henn, evolving out of PICA yachts. It was originally founded in 2013 – launching over forty 20- to 30-foot sailing and electric powerboats in its tenure.
We’ve covered the boatbuilder more and more as of late as it looks to create the next generation of zero-emission yachts by developing a growing lineup of solar electric catamarans that are as luxurious as they are sustainable.
In the past three years alone, ALVA Yachts has introduced a 50-foot cruiser, two electric sailboats in lengths of 72- and 82-feet, plus 60- and 90-foot all-electric yachts, including the OCEAN ECO 60, which debuted in 2022 and is now in production.
Last month, ALVA introduced a new 78-foot solar electric catamaran slotted between the OCEAN ECO 60 and OCEAN ECO 90 – the latter of which was previously available as an all-electric or diesel-hybrid superyacht.
Today, however, ALVA has gone all in on fuel-less yachts; a new version of the OCEAN ECO 90 adds hydrogen and wind power to ensure true zero emissions. Have a look.
ALVA is building its first fuel-less electric superyacht
The boatbuilder announced today that the build of its first OCEAN ECO 90 H2 solar electric superyacht is underway and will arrive as its first vessel to run without any fossil fuels, producing zero emissions.
The fully electric superyacht is propelled by two 250 kW motors as standard, with an optional upgrade to a 2×480 kW system. The motors are powered by a 500+ kWh battery pack aboard that can recharge using 200 square meters of solar cells atop the vessel that can provide up to 40 kilowatt-peak (kWp) power from nothing but the sun.
What’s new on the OCEAN ECO 90 H2 is the integration of hydrogen fuel cells as an additional zero emissions range extender, supplied by EODev and integrated by SECO Marine. Lastly, the solar electric superyacht will feature an Oceanwings wind propulsion system from Ayro that utilizes wind sensors on the wing sails to analyze data and adjust the wing sail angle and camber automatically.
The result is a 90-foot catamaran with several sustainable fail-safes to ensure the vessel stays powered for long journeys at sea.
Aside from its ultra-green performance specs, the vessel is still a luxury superyacht. It features an open-air concept that includes an open flybridge and helm, plus a sky lounge, cocktail bar, and top-deck jacuzzi. Other features include a large galley with a full-size fridge, an island with bar stools, and a large dining table that seats twelve guests.
The owner of the first ALVA OCEAN ECO 90 H2 has already stated they plan to use the electric superyacht for commercial use, including private and corporate events, plus charters to showcase that environmentally safe, luxury sailing is possible. ALVA Yachts CEO Holger Henn spoke to the company’s latest build as well:
We are very happy to have found such a confident and innovative client that pushes us to explore new technologies. This project would not be possible without our classification partner DNV which has established new ground rules especially for us because this has never been done before. In addition to DNV, our engineering partner iYacht has surpassed our expectations when faced with such advanced engineering challenges. What is special about this project is certainly the leap that we are making in technology. A superyacht that can operate without fossil fuel is something we could only dream of. But with the help of strong partners and a lot of effort from the ALVA team, we want to show what is possible in boat building today.
As previously stated, ALVA’s first OCEAN ECO 90 H2 is already in production, and it is expected to make its maiden voyage in late 2024.
FTC: We use income earning auto affiliate links. More.
Tern has just unveiled a new pair of electric bikes in collaboration with Airstream, and they might be the most “on-brand” accessories an RV owner could dream of.
The two-bike collection includes special edition versions of Tern’s Vektron S10 and HSD P5I e-bikes. Those two models are already well-loved e-bikes in the urban mobility world, known for their bulletproof designs and rugged everyday rider build quality. But now they come wrapped in Airstream’s signature polished aluminum aesthetic and are purpose-built for life on the road… or more accurately, life off the road.
The new Vektron S10 Airstream by Tern is a premium folding electric bike that combines compact stowability with full-size performance. It folds down in seconds and tucks neatly into an Airstream trailer or tow vehicle.
And it’s not just a pretty new face, either. This is still a Bosch-powered, cargo-capable workhorse that can haul groceries or even a kiddo on the rear rack.
The second model, the HSD P5I Airstream by Tern, is a compact electric cargo bike that’s essentially a small pickup truck disguised as a bike. You get serious utility in a short, nimble package. It’s ideal for campsite errands, runs into town, or cruising around a rally site.
Both models use Bosch’s Performance line drive system with pedal assist up to 20 mph (32 km/h), and they tap into Tern’s impressively deep accessory ecosystem so you can spec them out with front racks, passenger seats, panniers, and more. The Vektron S10 Airstream is priced at $3,699, while the HSD P5I Airstream rolls out at $5,099.
According to Steve Boyd, Tern’s GM for North America, “folding e-bikes and compact e-cargo bikes make the perfect addition to the RV lifestyle.” And frankly, it’s hard to disagree. When you’re parked for the night, your trailer isn’t going anywhere, but your e-bike sure can. Whether you’re headed to the nearest trailhead, grocery store, or lakeside picnic spot, these e-bikes let you leave the truck behind and ride in style.
I’m always hearing from RV owners about how an e-bike – or usually a pair of them – completely changed the game for them by giving them easy mobility beyond where they can reach with their rig.
Airstream’s CMO Mollie Hansen says the company wanted to give owners a better way to explore and make memories, and this partnership with Tern fits right into that mission. The idea is to extend the sense of freedom you get from your trailer onto two wheels, and maybe even spark a little envy from the folks camped next to you.
The design of the bikes was led by The Show Design Co., and the team had plenty of direct contact with real Airstream owners during testing, including a visit to the Airstream International Rally in Sedalia, Missouri. According to company president Mike Milo, the bikes proved to be a hit. And now they’re heading to their official debut at this year’s Airstream Club International Rally in York, Pennsylvania (August 23–28), where owners will get free demos.
Electrek’s Take
This collaboration makes a lot of sense to me, and it’s almost surprising it didn’t happen sooner. Airstream and Tern are both brands with serious design chops and practical roots. Folding e-bikes and cargo e-bikes already dominate the RV world because of how easy they are to transport and how useful they are once you’re parked. Add in some Airstream polish and now you’ve got the official e-bike of campfire coffee runs and last-minute beer missions.
Of course, these aren’t budget bikes by any means, but they’re built to last. When someone tells me they want a bike that is built to haul and they don’t mind paying a bit extra for something higher quality, I always tell them to go to Tern. These bikes are just built to a higher standard, literally. I say that if you want a bike that looks like it’s built tough, get one of those ridiculous Hummer fat tire e-bikes. If you want something that’s actually built tough, you get a Tern.
Now, if they could just also build one that looks like a mini aluminum trailer for e-bikes, we’d really be in business. They’re close… Tern already has a bicycle tow kit!
Ok… now, after spending time making AI generate that image, I really want to build that thing!
FTC: We use income earning auto affiliate links. More.
Russian Foreign Minister Sergey Lavrov (right) and India’s Foreign Minister Subrahmanyam Jaishankar enter a hall for their talks at Zinaida Morozova’s Mansion in Moscow on Aug. 21, 2025.
Alexander Zemlianichenko | Afp | Getty Images
India and Russia agreed Thursday to expand bilateral trade ties, signaling that U.S. tariff pressure on New Delhi over Russian oil purchases is unlikely to derail their partnership.
India currently faces additional tariffs of up to 50% on goods shipped to the U.S., after the Trump administration escalated tariff threats in response to its substantial imports of Russian energy.
The India-Russia relations had been among the “steadiest of the major relationships in the world after the Second World War,” Indian foreign minister Subrahmanyam Jaishankar said at a joint press conference in Moscow.
Both countries vowed to boost bilateral trade, including increasing India’s exports of pharmaceuticals, agriculture and textiles to Russia to help reduce the current imbalance, Jaishankar said.
Bilateral trade between New Delhi and Moscow reached a record $68.7 billion for the year ended March 2025, with India’s increased oil imports contributing to a $59 billion deficit.
Other plans include sending Indian workers with skills in IT, construction and engineering to help Russia address its labor shortages, Jaishankar added.
Russian foreign minister Sergei Lavrov said cooperation in the hydrocarbon sector and Russian oil shipments to the Indian market are “making wide strides.” Both sides remain committed to implementing joint energy production projects in the Russian Far East and the Russian Arctic shelf, among other sites, he said.
“This strategic partnership … contributes to regional security and stability, which is undeniably important considering the challenging international circumstances that we are operating under,” Lavrov added.
Western governments have imposed sanctions on Moscow, arguing India’s increased imports helped bankroll Moscow’s war in Ukraine. New Delhi has pushed back, saying the U.S. administration requested the purchases to keep the markets calm, while pointing to the U.S. and European Union’s continued trade with Russia.
Russian embassy officials in New Delhi reportedly said Wednesday that oil shipments to India will continue despite U.S. pressure, adding that Moscow hoped a trilateral meeting with India and China would take place soon.
“Despite the political situation, we can predict that the same level of oil import [by India],” Roman Babushkin, the charge d’affaires at the Russian embassy in India, told a press briefing.
“Russia has been a close strategic partner of India since the 1970s and the Trump administration’s tariff threats are not going to change that,” said Daniel Balazs, a research fellow at S. Rajaratnam School of International Studies.
“On the contrary, it might even act as a catalyst,” Balazs added, prompting New Delhi to agree to a trilateral meeting that Moscow sought to broker with China.
India was the second-largest buyer of Russian oil, importing 1.6 million barrels per day in the first half of this year, up from 50,000 bpd in 2020, though still trailing China’s 2 million bpd imports, according to the U.S. Energy Information Administration.
Washington has not placed secondary tariffs on China for its Russian oil purchases. When asked about China’s role in Russian oil purchases, U.S. Treasury Secretary Scott Bessent suggested that Beijing’s imports were considered to be less egregious because it had already been a major buyer even before Russia invaded Ukraine.
By contrast, Washington has escalated criticism of India in recent days, accusing the nation of profiteering from cheap Russian crude and threatening higher tariffs on Indian goods.
Ceasefire on the line
Trump’s true agenda appears to have little to do with Washington’s stated goal of curbing Moscow’s oil revenues, but extracting leverage from these trading partners, according to several geopolitical experts. These include securing a trade deal with New Delhi while pushing Putin for a ceasefire pact in Ukraine.
Last week, Trump rolled out a red carpet to greet Putin on his first visit to the U.S. in about a decade, sharing a ride with him in the presidential limousine to the venue. The meeting was held in Alaska, which was once a part of Russia.
The meeting did not appear to have produced meaningful steps toward a ceasefire in Ukraine and the Russian government has reiterated its opposition to any short-term ceasefire deal with Ukraine.
Speaking at the joint news briefing Thursday, Lavrov said he had briefed Indian officials on those talks.
“India’s approach continues to emphasize dialogue and diplomacy as essential to resolving differences,” Jaishankar said.
The storm hit. The power’s out. With all the damage around you, it looks like you might be without power for a few days (at least). But you planned for this. You have a home backup battery. What happens now?
If you’re considering a home backup battery, or you already have one and haven’t needed it yet, you might be wondering what you’re supposed to do when the inevitable happens. The good news is: you probably won’t have to do much at all.
Whether you’ve got an industry standard like the Tesla Powerwall, one of the new GM Energy Storage Bundles, or any of the other excellent home battery systems on the market, from your point of view they’ll function in pretty much the same way.
Step 1: do nothing
Modern home batteries are paired with an automatic transfer switch. That’s a switch, usually installed near your home’s electrical panel, that allows you to go from grid power, to battery, and back. And, because it’s automatic, you don’t have to do anything at all.
The instant the grid goes down, the automatic transfer switch recognizes the loss of power and automagically disconnects your house from the grid, seamlessly connecting it to your backup battery instead. Your lights stay on, the refrigerator keeps humming, and whatever else you’ve chosen to back up just keeps on keeping on. In some cases, the transition to battery power happens so smoothly that you might not even realize the neighborhood’s lost power, not noticing the neighbors’ dark windows until you step outside.
When the power comes back, that side of the switch gets energized, and it does its thing again, only in reverse – switching you back from battery to grid power and intelligently re-charging the battery in anticipation for the next blackout.
How long will my battery last?
Unfortunately, this is one of those questions that doesn’t have an easy answer. In the simplest terms, if you have a small battery and try to keep the AC running, you might run out of juice in a few hours. On the other hand, if you have great big battery and save its electrons for just the barest essentials (a few lights, a laptop, and a phone or radio, for example) you might never run out of power.
To put some numbers to that, a 31 cu. ft. Samsung RF32CG5400SRAA stainless steel refrigerator is rated at 785 kWh/year. That works out to about 2.15 kWh/day. Factor in 20-40% higher energy needs for warmer temperatures, a few daily door openings, defrost cycles, inverter losses, etc. and you’re looking at 18-22 kWh of usable battery capacity to keep that thing running for a full week on battery power. Now do that same math for every appliance you deem a “must have,” then do the “nice to haves,” and on down the line.
That doesn’t even address the other form of “last,” and whether you’re looking for a ten- or twenty- year battery solution.
What you need to do, in other words, is talk to the experts. Let them know what appliances you need to keep running, how long you want to prepare for, and let them do the math to help determine which battery solution is right for you.
I’ve included a video that covers the process of picking a solar battery from EnergySage (a trusted affiliate partner), below, and invite you to share some of your own backup battery-picking experiences in the comments.
How to pick a solar battery
Original content from Electrek.
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.
FTC: We use income earning auto affiliate links. More.
-
Sports3 years ago‘Storybook stuff’: Inside the night Bryce Harper sent the Phillies to the World Series
-
Sports1 year agoStory injured on diving stop, exits Red Sox game
-
Sports2 years agoGame 1 of WS least-watched in recorded history
-
Sports2 years agoMLB Rank 2023: Ranking baseball’s top 100 players
-
Sports4 years ago
Team Europe easily wins 4th straight Laver Cup
-
Sports2 years agoButton battles heat exhaustion in NASCAR debut
-
Environment2 years agoJapan and South Korea have a lot at stake in a free and open South China Sea
-
Environment3 years agoGame-changing Lectric XPedition launched as affordable electric cargo bike