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Vast arrays of floating solar panels near the equator could provide unlimited clean energy to countries in Southeast Asia and West Africa, according to new research.

Floating solar in the equator’s waters

Engineering professors at Australian National University have published a new paper in which they explain how some regions on the equator would be ideal for floating solar because the waters there don’t have strong winds and large waves. Tropical storms rarely hit those regions.

The researchers assert that floating solar in those waters could generate up to a massive 1 million TWh per year. They note in an article in The Conversation that “that’s about five times more annual energy than is needed for a fully decarbonized global economy supporting 10 billion affluent people.”

The waters are categorized as calm if the waves are smaller than 6 meters and winds are weaker than 15 meters per second. The calmest waters are in and around Indonesia and equatorial West Africa, near Nigeria. So floating panels installed in those waters wouldn’t need strong, costly engineering defenses.

The Indonesian region, for example, has “about 140,000 square kilometers [54,054 square miles] of seascape that has not experienced waves larger than 4 meters [13 feet] – nor winds stronger than 10m per second – in the past 40 years.”

Offshore solar in Indonesia alone could generate about 35,000 terawatt-hours (TWh) of solar energy a year, according to the paper, which is similar to the country’s current global electricity production of 30,000 TWh per year. And because Indonesia has a high population density and limited ecosystems that shouldn’t be disturbed, floating solar as a source of energy could be a viable solution.

The scientists have calculated that Indonesia would need 25,000 square kilometers (9,653 square miles) of solar panels to support an “affluent Indonesia after full decarbonization of the economy using solar power.”

Electrek’s Take

If wind and wave patterns don’t get altered too drastically by climate change, putting floating solar in waters near the equator could be a creative and clever solution to provide power to regions with large populations that don’t have a lot of land to work with. Of course, the developers would need to pay careful attention to avoid causing damage to marine life and fishing.

What do you think of this idea? Let us know in the comments below.

Read more: The largest floating solar farm in North America is officially online

Photo: DNV


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Caterpillar is putting MASSIVE 240-ton electric haul truck to work in Vale mine

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Caterpillar is putting MASSIVE 240-ton electric haul truck to work in Vale mine

Mining company Vale is turning to Caterpillar to provide this massive, 240-ton battery-electric haul truck in a bid to slash carbon emissions at its mines by 2030.

Caterpillar and Vale have signed an agreement that will see the Brazilian mining company test severe-duty battery electric mining trucks like the 793 BEV (above), as well as V2G/V2x energy transfer systems and alcohol-powered trucks. The test will help Vale make better equipment choices as it works to achieve its goals of reducing direct and indirect carbon emissions 33% by 2030 and eliminating 100% of its net emissions by 2050.

If that sounds weird, consider that most cars and trucks in Brazil run on either pure ethyl alcohol/ethanol (E100) or “gasohol” (E25).

“We are developing a portfolio of options to decarbonize Vale’s operations, including electrification and the use of alternative fuels in the mines. The most viable solutions will be adopted,” explains Ludmila Nascimento, energy and decarbonization director Vale. “We believe that ethanol has great potential to contribute to the 2030 target because it is a fuel that has already been adopted on a large scale in Brazil, with an established supply network, and which requires an active partnership with manufacturers. We stand together to support them in this goal.”

Vale will test a 240-ton Cat 793 battery-electric haul truck at its operations in Minas Gerais, and put energy transfer solutions to a similar tests at Vale’s operations in Pará over the next two-three years. Caterpillar and Vale have also agreed to a joint study on the viability of a dual-fuel (ethanol/diesel) solution for existing ICE-powered assets.

Vale claims to be the world’s largest producer of iron ore and nickel, and says it’s committed to an investment of between $4 billion to $6 billion to meet its 2030 goal.

Cat 793 electric haul truck

During its debut in 2022, the Cat 793 haul truck was shown on a 4.3-mile test course at the company’s Tucson proving grounds. There, the 240-ton truck was able to achieve a top speed of over 37 mph (60 km/h) fully loaded. Further tests involved the loaded truck climbing a 10% grade for a full kilometer miles at 7.5 mph before unloading and turning around for the descent, using regenerative braking to put energy back into the battery on the way down.

Despite not giving out detailed specs, Caterpillar reps reported that the 793 still had enough charge in its batteries for to complete more testing cycles.

Electrek’s Take

Caterpillar-electric-mining-truck
Cat 793 EV at 2022 launch; via Caterpillar.

Electric equipment and mining to together like peanut butter and jelly. In confined spaces, the carbon emissions and ear-splitting noise of conventional mining equipment can create dangerous circumstances for miners and operators, and that can lead to injury or long-term disability that’s just going to exacerbate a mining operation’s ability to keep people working and minerals coming out of the ground.

By working with companies like Vale to prove that forward-looking electric equipment can do the job as well as well as (if not better than) their internal combustion counterparts, Caterpillar will go a long way towards converting the ICE faithful.

SOURCES | IMAGES: Caterpillar, Construction Equipment, and E&MJ.

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Argonne Nat’l Lab is spending big bucks to study BIG hydrogen vehicles

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Argonne Nat'l Lab is spending big bucks to study BIG hydrogen vehicles

Argonne National Laboratory is building a new research and development facility to independently test large-scale hydrogen fuel cell systems for heavy-duty and off-road applications with funding from the US Department of Energy.

The US Department of Energy (DOE) is hoping Argonne Nat’l Lab’s extensive fuel cell research experience, which dates back to 1996, will give it unique insights as it evaluates new polymer electrolyte membrane (PEM) fuel cell systems ranging from 150 to 600 kilowatts for use in industrial vehicle and stationary power generation applications.

The new Argonne test facility will help prove (or, it should be said, disprove) the validity of hydrogen as a viable fuel for transportation applications including heavy trucks, railroad locomotives, marine vessels, and heavy machines used in the agriculture, construction, and mining industries.

“The facility will serve as a national resource for analysis and testing of heavy-duty fuel cell systems for developers, technology integrators and end-users in heavy-duty transportation applications including [OTR] trucks, railroad locomotives, marine vessels, aircraft and vehicles used in the agriculture, construction and mining industries,” explains Ted Krause, laboratory relationship manager for Argonne’s hydrogen and fuel cell programs. “The testing infrastructure will help advance fuel cell performance and pave the way toward integrating the technology into all of these transportation applications.”

The Hydrogen and Fuel Cell Technologies Office (HFTO) of DOE’s Office of Energy Efficiency and Renewable Energy is dedicating about $4 million to help build the new Argonne facility, which is set to come online next fall.

Electrek’s Take

Medium-sized Hydrogen FC excavator concept; via Komatsu.

It’s going to be hard to convince me that the concentrated push for a technology as inefficient as hydrogen fuel cells has more to do with any real consumer or climate benefit than it does keeping the throngs of people it will take to manufacture, capture, transport, store, house, and effectively dispense hydrogen gainfully employed through the next election cycle.

As such, while case studies like the hydrogen combustion-powered heavy trucks that have been trialed at Anglo American’s Mogalakwena mine since 2021 (at top) and fuel cell-powered concepts like Komatsu’s medium-sized excavator (above) have proven that hydrogen as a fuel can definitely work on a job site level while producing far fewer harmful emissions than diesel, I think swappable batteries like the ones being shown off by Moog Construction and Firstgreen have a far brighter future.

Speaking of Moog, we talked to some of the engineers being their ZQuip modular battery systems on a HEP-isode of The Heavy Equipment Podcast a few months back. I’ve included it, below, in case that’s something you’d like to check out.

SOURCES | IMAGES: ANL, Komatsu, and NPROXX.

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Velocity truck rental adds 47 high-speed truck chargers to California dealer network

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Velocity truck rental adds 47 high-speed truck chargers to California dealer network

Velocity truck rental is doing its part to help commercial fleets electrify by energizing 47 high-powered charging stations at four strategic dealer locations across Southern California. And they’re doing it now.

The new Velocity Truck Rental & Leasing (VTRL) charging network isn’t some far-off goal being announced for PR purposes. The company says its new chargers are already in the ground, and set to be fully online and energized by the end of this month at at VTRL facilities in Rancho Dominguez (17), Fontana (14), the City of Industry (14), and San Diego (2).

45 120 kW Detroit e-Fill chargers make up the bulk of VTRL’s infrastructure project, while two DCFC stations from ChargePoint get them to 47. All of the chargers, however, where chosen specifically to cater to the needs of medium and heavy-duty battery electric work trucks.

The company says it chose the Detroit e-Fill commercial-grade chargers because they’ve already proven themselves in Daimler-heavy fleets with their ability to bring Class 8 Freightliner eCascadias, Class 6 and 7 Freightliner eM2 box trucks, and RIZON Class 4 and 5 cabover trucks, “to 80% state of charge in just 90 minutes or less.”

At Velocity, we are not just reacting to the shift towards electric mobility; we are at the forefront with our customers and actively shaping it. By integrating high-powered, commercial-grade charging solutions along key transit corridors, we are ensuring that our customers have the support they need today. This charging infrastructure investment is a testament to our commitment to helping our customers transition smoothly to electromobility solutions and to prepare for compliance with the Advanced Clean Fleets (ACF) regulations.

David Deon, velocity president

Velocity plans to offer flexible charging options to accommodate the needs of different fleets, including both managed, “charging as a service” subscription plans and self-managed/opportunity charging during daily routes. While trucks are charging, drivers and operators will be able to relax in comfortable break rooms equipped with WIFI, television, snacks, water, and restrooms.

Electrek’s Take

Image via DTNA.

While it feels a bit underwhelming to write about trucking companies simply following the letter of the law in California, the rollout of an all-electric, zero-emission commercial trucking fleet remains something that, I think, should be celebrated.

As such, I’m celebrating it. I hope you are, too.

SOURCE | IMAGES: Global Newswire; Daimler Trucks.

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