Tag Archives: Renewable Energy & Energy Saving

‘Breakthrough’ geothermal tech produces 3.5 megawatts of carbon-free power

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Fervo Energy says it has achieved a breakthrough in geothermal technology. It carried out a 30-day well test at its site in northern Nevada and says it was able to achieve a "flowrate of 63 liters per second at high temperature that enables 3.5 megawatts of electric production." The company says the test resulted in flow and power output records for an enhanced geothermal system (EGS) and that it was completed without incident.

A megawatt can power around 750 homes at once. Fervo is expected to connect its Project Red site to the grid this year. It will be used to power Google data centers and some of the company's other Nevada infrastructure. Google and Fervo signed an agreement in 2021 to develop a "next-generation geothermal power project."

This is the first time an energy company has shown that an EGS can work on a commercial scale, according to Bloomberg. It's been a long road to reach this point, as scientists have been trying to make EGS a reality since the 1970s.

For a natural geothermal system to produce electricity, it needs a combination of heat, fluid and rock permeability, as Bloomberg notes. In many areas, the rock has the required levels of heat, but not enough permeability for fluid to flow through it.

An EGS creates this permeability artificially by drilling deep underground and injecting fluid to create fractures in the rock. That approach can vastly increase the number of potential sites for a geothermal power plant.

Fervo says it's the first company to "successfully drill a horizontal well pair for commercial geothermal production, achieving lateral lengths of 3,250 feet, reaching a temperature of 191°C, and proving controlled flow through rigorous tracer testing."

One of the major advantages of geothermal power plants is that they're entirely carbon free — Google aims to run all of its offices and data centers on carbon-free energy by 2030. These plants can also operate at any time (unlike solar and wind), making geothermal energy a compelling source of renewable power. However, cost reductions and regulatory red tape are barriers to making EGS more broadly available, according to Fervo CEO Tim Latimer.

The company is hoping to replicate its success at a site in Utah. If Fervo sees similar results there and it successfully implements design upgrades to maximize output, the site is expected to generate enough electricity to power 300,000 homes simultaneously, Latimer said. That's around a quarter of all homes in Utah.

“Achieving our goal of operating on 24/7 carbon-free energy will require new sources of firm, clean power to complement variable renewables like wind and solar,” Michael Terrell, Google's senior director for energy and climate, said in a statement. “We partnered with Fervo in 2021 because we see significant potential for their geothermal technology to unlock a critical source of 24/7 carbon-free energy at scale, and we are thrilled to see Fervo reach this important technical milestone.”

This article originally appeared on Engadget at https://www.engadget.com/breakthrough-geothermal-tech-produces-35-megawatts-of-carbon-free-power-210032356.html?src=rss

Tesla’s ‘Charge on Solar’ lets Powerwall owners send excess energy to their EV

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Tesla has launched a feature called "Charge on Solar" that allows owners to fill up their electric vehicles' batteries using only excess solar energy. As TechCrunch notes, the automaker started testing the capability in May, but now it's more widely available to Tesla customers in the US and in Canada. The number of people who can access the feature, however, likely remains pretty limited. To start with, it will only be accessible to those who have newer Teslas — 2021 and later — who also have a Powerwall. That's the company's battery system that stores solar energy harnessed by solar panels. 

Screenshots of Tesla's new Charge on Solar feature.
Tesla

To enable Charge on Solar, users will need to fire up their Tesla app, choose the feature and then set it up. They'll then see a slider with a sun icon within the feature's settings that they can drag left or right to set the charge limit. The vehicle will charge itself from solar and the grid like usual before it reaches the sun slider, ensuring users have enough power to get where they need to. But after reaching the sun slider, the vehicle will only charge itself using excess solar energy. 

The Powerwall will still prioritize storing backup energy or charging other appliances when it's in Storm Watch mode before allocating any excess solar power for vehicle charging. Charge on Solar will truly only charge EVs using excess energy, which is also why owners worried about not having enough juice can set a time limit for it. Of course, they can also adjust their charge limit, or switch off Charge on Solar entirely if they want to be absolutely sure that their batteries will get fully charged. 

This article originally appeared on Engadget at https://www.engadget.com/teslas-charge-on-solar-lets-powerwall-owners-send-excess-energy-to-their-ev-102018496.html?src=rss

Anker’s new Solix home energy storage includes a modular solar battery system

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Device charging company Anker is moving into Tesla's territory with the launch of the Solix line of home energy products, including a modular Powerwall-like battery storage system, the company announced at an event in New York City. It also introduced a smaller battery aimed at folks living in condos and apartments that can be used with its existing balcony-mounted solar panels.

The modular battery system, set to arrive globally in 2024, will be scalable from 5kWh of power (enough to run an average-sized house for a few hours) up to 180kWh, which could feasibly power a house for nearly a week. It's designed to deliver backup power to both existing and new solar installation, and Anker promises it will "provide high levels of safety and durability, seamlessly transfer to off-grid power and be compatible with home energy equipment such as heat pumps, oil- and gas-powered generators." It will also work with a "forthcoming EV charging solution," the company wrote.

The system will use lithium iron phosphate (LFP) batteries and operate at temperatures ranging from -20C to 55C (-4F to 131F). It's controlled by Anker's power management system and available with an app. Anker has yet to provide the all-important pricing, but said more information will be available "later this year." 

By comparison, Tesla's Powerwall 2 units have nearly triple the power (13.5kWh each), cost $11,500 each installed and can be scaled up to 135kWh. Standalone Powerwall installations qualify for a 30 percent residential federal investment tax credit, along with any state incentives.

Anker's new Solix home energy storage includes a modular solar battery system
Anker

Along with the modular battery, Anker unveiled the Solarbank E1600 battery pack as part of an energy storage system for apartments and condos. Set to be sold in Europe, it follows the company's recently launched Solix RS40 balcony solar panel system, and is compatible with "99 percent of the balcony PV products on the market," the company said.

It's modular, available in sizes from 1.6kWh to 3.2kWh (enough for a few hours of power), and works with most micro-inverters including the ones bundled with the RS40 solar panels. Once plugged it into a standard home power socket, it'll absorb any excess energy from the solar panels and feed it back to the home if the grid goes down. Anker promises a "five minute DIY installation," and said it can support 6,000 charging cycles or double the industry average. It can also be controlled via an app.

The new storage products join Anker's existing lineup of batteries (now branded Solix as well), like the 767 PowerHouse 2.05kWh designed for campers and outdoor use, and charged with an optional 200W solar panel. Anker now joins companies like Ecoflow (with its modular 3.6kWh-25kWh Delta Pro battery) and others in the burgeoning home energy storage market. 

This article originally appeared on Engadget at https://www.engadget.com/ankers-new-solix-home-energy-storage-includes-a-modular-solar-battery-system-085432144.html?src=rss

GM EV owners will gain access to Tesla Superchargers in 2024

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Ford isn't the only electric automaker switching to Tesla's North American Charging Standard — General Motors says it's making the change, too. CEO Mary Barra announced the move during a Twitter Spaces chat with Tesla CEO Elon Musk on Thursday, stating that its electric vehicles will make the NACS open-source connector standard in all GM EVs in 2025.

As part of the collaboration, all GM EVs will gain access to 12,000 Tesla Superchargers in 2024. Drivers of existing GM EVs won't have to upgrade their vehicles to use Tesla's chargers, but will need to use an adapter to make their vehicle compatible. Likewise, GM says it will be developing an adapter that will allow future NACS-enabled EVs to charge its existing network of CSS-capable fast charging stations.

That backwards compatible charger could prove important. Tesla's willingness to open up its charging system to non-Tesla vehicles was originally announced alongside a $7.5 billion Biden administration initiative to expand EV charger availability in the US — but that plan heavily indexes on building out CCS chargers.

"This collaboration is a key part of our strategy and an important next step in quickly expanding access to fast chargers for our customers," Barra said in GM's statement on the partnership. "Our vision of the all-electric future means producing millions of world-class EVs across categories and price points, while creating an ecosystem that will accelerate mass EV adoption."

This article originally appeared on Engadget at https://www.engadget.com/gm-ev-owners-will-gain-access-to-tesla-superchargers-in-2024-002123436.html?src=rss

GM EV owners will gain access to Tesla Superchargers in 2024

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Ford isn't the only electric automaker switching to Tesla's North American Charging Standard — General Motors says it's making the change, too. CEO Mary Barra announced the move during a Twitter Spaces chat with Tesla CEO Elon Musk on Thursday, stating that its electric vehicles will make the NACS open-source connector standard in all GM EVs in 2025.

As part of the collaboration, all GM EVs will gain access to 12,000 Tesla Superchargers in 2024. Drivers of existing GM EVs won't have to upgrade their vehicles to use Tesla's chargers, but will need to use an adapter to make their vehicle compatible. Likewise, GM says it will be developing an adapter that will allow future NACS-enabled EVs to charge its existing network of CSS-capable fast charging stations.

That backwards compatible charger could prove important. Tesla's willingness to open up its charging system to non-Tesla vehicles was originally announced alongside a $7.5 billion Biden administration initiative to expand EV charger availability in the US — but that plan heavily indexes on building out CCS chargers.

"This collaboration is a key part of our strategy and an important next step in quickly expanding access to fast chargers for our customers," Barra said in GM's statement on the partnership. "Our vision of the all-electric future means producing millions of world-class EVs across categories and price points, while creating an ecosystem that will accelerate mass EV adoption."

This article originally appeared on Engadget at https://www.engadget.com/gm-ev-owners-will-gain-access-to-tesla-superchargers-in-2024-002123436.html?src=rss

Japan will try to beam solar power from space by 2025

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Japan and JAXA, the country’s space administration, have spent decades trying to make it possible to beam solar energy from space. In 2015, the nation made a breakthrough when JAXA scientists successfully beamed 1.8 kilowatts of power, enough energy to power an electric kettle, more than 50 meters to a wireless receiver. Now, Japan is poised to bring the technology one step closer to reality.

Nikkei reports a Japanese public-private partnership will attempt to beam solar energy from space as early as 2025. The project, led by Naoki Shinohara, a Kyoto University professor who has been working on space-based solar energy since 2009, will attempt to deploy a series of small satellites in orbit. Those will then try to beam the solar energy the arrays collect to ground-based receiving stations hundreds of miles away.

Using orbital solar panels and microwaves to send energy to Earth was first proposed in 1968. Since then, a few countries, including China and the US, have spent time and money pursuing the idea. The technology is appealing because orbital solar arrays represent a potentially unlimited renewable energy supply. In space, solar panels can collect energy no matter the time of day, and by using microwaves to beam the power they produce, clouds aren’t a concern either. However, even if Japan successfully deploys a set of orbital solar arrays, the tech would still be closer to science fiction than fact. That’s because producing an array that can generate 1 gigawatt of power – or about the output of one nuclear reactor – would cost about $7 billion with currently available technologies.

This article originally appeared on Engadget at https://www.engadget.com/japan-will-try-to-beam-solar-power-from-space-by-2025-214338244.html?src=rss

The Morning After: Will we see Apple’s mixed-reality headset at WWDC 2023?

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Apple has set the dates for WWDC 2023, which will run between June 5th and June 9th. It's still an online-only affair, but there will be a "special experience" at Apple Park on the 5th for developers and students.

While we expect to see software-centric upgrades, with iOS, macOS and the rest, this could also be when Apple finally debuts its mixed-reality headset. Rumors suggest it could be called Reality Pro or Reality One, and it’s believed to be a standalone device with an M2 chip, dual 4K displays, advanced body tracking and controller-free input. It could be a pricey piece of hardware, even by Apple’s standards, with some reports suggesting it’ll cost $3,000.

– Mat Smith

The Morning After isn’t just a newsletter – it’s also a daily podcast. Get our daily audio briefings, Monday through Friday, by subscribing right here.

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Sony's 12-megapixel full-frame ZV-E1 is a low-light vlogging beast

It comes with 5-axis stabilization and AI-based auto-framing.

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Engadget

Sony has unveiled its latest, and by far greatest vlogging camera to date: The full-frame ZV-E1. Equipped with the same backside-illuminated (BSI) 12-megapixel sensor as one of the company’s flagship cameras, the A7S III, it promises excellent low-light performance and 4K video at up to 120p. The $2,200 price tag also makes it enticing for vloggers as it offers features found on the $3,500 A7S III, thanks to a full-frame sensor. Crucially, for people like me obsessed with the older ZV-1 vlogging camera, it uses the same Z-batteries as larger Sony models, meaning more video capture without having to keep it plugged in or swapping out batteries. It goes on pre-order tomorrow, with shipping set to start in early April.

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Tech leaders and AI experts demand six-month pause on 'out-of-control' AI experiments

The open letter warns of risks to humans.

An open letter signed by tech leaders and prominent AI researchers has called for AI labs and companies to "immediately pause" their work. Signatories like Steve Wozniak and Elon Musk agree risks warrant a minimum six-month break from producing technology beyond GPT-4 to allow people to adjust and ensure they are benefiting everyone. The letter adds that care and forethought are necessary to ensure the safety of AI systems, and that may not be happening. Companies are racing to build complex chat systems that utilize the technology. Microsoft recently confirmed that its revamped Bing search engine has been powered by the GPT-4 model for over seven weeks, while Google also debuted Bard, its own generative AI system powered by LaMDA.

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Renewable power generation overtook coal in the US last year

Natural gas is still the largest electricity source, however.

The US Energy Information Administration (EIA) has determined that renewable power generation overtook coal in 2022, with 4,090 million megawatt-hours coming from solar, wind, hydroelectric, biomass and geothermal technology. The shift came through increased renewable capacity and coal's years-long decline. Wind was the dominant source of clean electricity, with the capacity jumping from 133 gigawatts in 2021 to 141 gigawatts a year later. However, natural gas still remains the top power source, with a 39 percent share.

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Lamborghini's plug-in hybrid supercar runs for only six miles in electric mode

You’re not buying it for fuel economy anyway.

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Lamborghini

The Lamborghini Revuelto, which translates to “scrambled,” can reach 6.2 miles from a full charge. That is likely not enough juice to get you to Costco and back, but this is a hybrid vehicle not exactly intended for all-electric usage. With that said, the combustion engine charges the rather minuscule 3.8kWh battery on its own in just six minutes. If you’re waiting on an all-electric Lamborghini, the company still plans to introduce one by 2030.

Continue reading.

This article originally appeared on Engadget at https://www.engadget.com/the-morning-after-will-we-see-apples-mixed-reality-headset-at-wwdc-2023-111530966.html?src=rss

Renewable power generation overtook coal in the US last year

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Renewables are already producing more energy than fossil fuels in Europe, and now the US is approaching that milestone. The US Energy Information Administration (EIA) has determined that renewable power generation overtook coal in 2022, with 4,090 million megawatt-hours coming from solar, wind, hydroelectric, biomass and geothermal technology. These green sources leapt past nuclear in 2021, but widened the gap last year. They have about 21 percent share combined.

The shift came through the combination of increasing renewable capacity and coal's years-long decline. Wind was the dominant source of clean electricity, with the capacity jumping from 133 gigawatts in 2021 to 141 gigawatts a year later. Hydro was second, followed by utility-level solar, biomass and geothermal. Coal dropped to 20 percent share due to both the closure of some plants and the reduced use of others. Nuclear has remained relatively steady, but the shutdown of Michigan's Palisades powerplant saw it dip to 19 percent.

It might not surprise you to hear which states dominated certain renewable energy sources. Sunny California was the leader in solar power generation with 26 percent of the output, while Texas had a similar slice of wind generation. Texas also has the largest shares of coal and natural gas, although its lead in those areas is only slight.

Renewables weren't the top power source in 2022 — that distinction went to natural gas, which claimed a 39 percent share. However, it's evident that clean tech has a firm foothold in the US despite attempts to undermine it through regulation. We'd expect the trends to continue, too. President Biden's administration has heavily promoted renewable electricity, including the approval of the first large offshore wind farm in the country, while the EIA expects coal use to shrink to 17 percent. Natural gas may retain a comfortable lead, but it now has a new chief rival.

This article originally appeared on Engadget at https://www.engadget.com/renewable-power-generation-overtook-coal-in-the-us-last-year-200907783.html?src=rss

A Dash-8 commuter plane flew for 15 minutes with a hydrogen fuel-cell engine

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Hydrogen holds promise for zero-emissions aviation, via either fuel-cell electric motors or jet engines that burn H2 directly. Now, Universal Hydrogen has announced that it completed a 15-minute test flight in a 40-seat Dash-8 commuter plane using a fuel-cell hydrogen engine. The company called the flight "historic" and said it is "committed to being North America’s first zero-emission airline." 

With a fuel cell from Plug Power and electric motor built by magniX, the power plant is the largest ever to take to the sky. However, it was only installed on the left side of the aircraft, while a standard Pratt & Whitney turboprop engine was fitted to the right wing for "safety of flight," the company said. It supplied the engines with emissions-free "green" hydrogen (made via electrolysis from renewable power sources), connected via its own modules that keep the highly volatile gas in liquid form for up to 100 hours.

A Dash-8 commuter plane flew for 15 minutes with a hydrogen fuel-cell engine
Universal Hydrogen

The Dash-8 was highly modified to accommodate the engine, 30kg (66 pounds) of liquid hydrogen and two racks of electronics and sensors. While the turbine engine was mainly used for takeoff, pilots were able to cruise mostly on hydrogen power during the second circuit. The flight attained a height of 3,500 feet. 

Though it had some yaw due to the imbalance in power, "the airplane handled beautifully, and the noise and vibrations from the fuel cell powertrain are significantly lower than from the conventional turbine engine," said chief pilot (and former US Air Force test pilot) Alex Kroll. The company received FAA approval for the flight just weeks ago. 

The British/American firm ZeroAvia flew with a similar configuration on its twin-engine, 19-seat Dornier 228 plane earlier this year. Airbus recently announced that it's building a fuel cell that could power a 100-seat aircraft around 1,150 miles, and Rolls-Royce recently completed tests of a jet engine converted to run directly on hydrogen fuel. 

Potential problems still abound, though. Hydrogen has about a quarter the energy density of regular jet A fuel, so it's only good for short hops. And as I've detailed in an explainer, there's very little hydrogen fuel infrastructure, it's tricky to work with and extremely explosive. Still, Universal Hydrogen is confident it can beat the odds. "Our business model resolves the chicken-and-egg problem between hydrogen airplanes and hydrogen infrastructure by developing both in parallel and with a uniquely low-cost approach," said CEO and co-founder Paul Eremenko. 

This article originally appeared on Engadget at https://www.engadget.com/a-dash-8-commuter-plane-flew-for-15-minutes-with-a-hydrogen-fuel-cell-engine-060607763.html?src=rss

Elon Musk lays out his vision for Tesla’s future at the company’s Investor Day 2023

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Tesla's production capacities are in store for a significant growth spurt, CEO Elon Musk told the crowd assembled at the company's Austin, Texas Gigafactory for Investor Day 2023 — and AI will apparently be the magic bullet that gets them there. It's all part of what Musk is calling Master Plan part 3.

This is indeed Musk's third such Master Plan, the first two coming in 2006 and 2016, respectively. These have served as a roadmap for the company's growth and development over the past 17 years as Tesla has grown from neophyte startup to the world's leading EV automaker. "There is a clear path to a sustainable energy Earth by 2050 and it does not require destroying natural habitats," Musk said during the keynote address. 

"You could support a civilization much bigger than Earth [currently does]. Much more than the 8 billion humans could actually be supported sustainably on Earth and I'm just often shocked and surprised by how few people realize this," he continued. He promised that the company would release a "detailed whitepaper with calculations & assumptions," via Twitter during the event.

The Master Plan aims to establish a sustainable energy economy by developing 240 terraWatt hours (TWH) of energy storage and 30 TWH of renewable power generation, which would require an estimated $10 trillion investment, roughly 10 percent of the global GDP. Musk notes, however, that figure is less than half of what we spend currently on internal combustion economy. In all, he anticipates we'd need less than 0.2 percent of the world's land area to create the necessary solar and wind generation capacity. 

"All cars will go to fully electric and autonomous," Musk declared, arguing once again that ICE vehicles will soon be viewed in the same disdain as the horse and buggy. He also teased potential plans to electrify aircraft and ships. "As we improve the energy density of batteries, you’ll see all transportation go fully electric, with the exception of rockets,” he said. No further details as to when or how that might be accomplished were shared.

“A sustainable energy economy is within reach and we should accelerate it,” Drew Baglino, Tesla's SVP of Powertrain and Energy Engineering, added.

Following Musk's opening statement, Tesla executives Lars Moravy and Franz von Holzhausen took the stage to discuss the company's "production hell" and the challenges of building the Cybertruck out of stainless steel. However, the lessons learned from that, Moravy argued will help Tesla build its Gen 3 vehicles more efficiently, and do so within a far smaller factory footprint. von Holzhausen announced to a rousing round of applause that the Cybertruck will arrive later this year, a significantly closer date than Musk's previous public estimate that production wouldn't begin until next year. 

Unfortunately, there will be no new vehicle reveal at this event, von Holzhausen said. That announce will happen "at a later date."  

The company did tease a new video featuring the Tesla Robot walking independently and without the aide of a support frame though there was no live demonstration of the same. Despite difficulties finding suitable off-the-shelf actuators and motors for the humanoid robot platform, "we should bring and actual produce to market at scale that is useful far faster than anyone else," Musk said. 

He further expects the company's robots to become so successful that we may soon see a day where they outnumber humans. "I think we might exceed a one-to-one ratio of robots to humans," he added. "It's not even clear what an economy means at that point."

This article originally appeared on Engadget at https://www.engadget.com/elon-musk-lays-out-his-vision-for-teslas-future-at-the-companys-investor-day-2023-215737642.html?src=rss