With Tesla battery packs and largest hydrogen tank in Japan, Panasonic tests a factory of the future
As a bullet train speeds by in the background, a liquid hydrogen tank towers over solar panels and hydrogen fuel cells at Panasonic’s Kusatsu plant in Japan. Combined with a Tesla Megapack storage battery, the hydrogen and solar can deliver enough electricity to power the site’s Ene-Farm fuel cell factory.
Tim Hornyak
As bullet trains whiz by at 285 kilometers per hour, Panasonic’s Norihiko Kawamura looks over Japan’s tallest hydrogen storage tank. The 14-meter structure looms over the Tokaido Shinkansen Line tracks outside the ancient capital of Kyoto, as well as a large array of solar panels, hydrogen fuel cells and Tesla Megapack storage batteries. The power sources can generate enough juice to run part of the manufacturing site using renewable energy only.
“This may be the biggest hydrogen consumption site in Japan,” says Kawamura, a manager at the appliance maker’s Smart Energy System Business Division. “We estimate using 120 tons of hydrogen a year. As Japan produces and imports more and more hydrogen in the future, this will be a very suitable kind of plant.”
Sandwiched between a high-speed railway and highway, Panasonic’s factory in Kusastsu, Shiga Prefecture, is a sprawling 52 hectare site. It was originally built in 1969 to manufacture goods including refrigerators, one of the “three treasures” of household appliances, along with TVs and washing machines, that Japanese coveted as the country rebuilt after the devastation of World War II.
Today, one corner of the plant is the H2 Kibou Field, a demonstration sustainable power facility that started operations in April. It consists of a 78,000-liter hydrogen fuel tank, a 495 kilowatt hydrogen fuel cell array made up of 99 5kW fuel cells, 570kW from 1,820 photovoltaic solar panels arranged in an inverted “V” shape to catch the most sunlight, and 1.1 megawatts of lithium-ion battery storage.
On one side of the H2 Kibou Field, a large display indicates the amount of power being produced in real time from fuel cells and solar panels: 259kW. About 80% of the power generated comes from fuel cells, with solar accounting for the rest. Panasonic says the facility produces enough power to meet the needs of the site’s fuel cell factory — it has peak power of about 680kW and annual usage of some 2.7 gigawatts. Panasonic thinks it can be a template for the next generation of new, sustainable manufacturing.
“This is the first manufacturing site of its kind using 100% renewable energy,” says Hiroshi Kinoshita of Panasonic’s Smart Energy System Business Division. “We want to expand this solution towards the creation of a decarbonized society.”
The 495kilowatt hydrogen fuel cell array is made up of 99 5KW fuel cells. Panasonic says it’s the world’s first site of its kind to use hydrogen fuel cells toward creating a manufacturing plant running on 100% renewable energy.
Tim Hornyak
An artificial intelligence-equipped Energy Management System (EMS) automatically controls on-site power generation, switching between solar and hydrogen, to minimize the amount of electricity purchased from the local grid operator. For example, if it’s a sunny summer day and the fuel cell factory needs 600kW, the EMS might prioritize the solar panels, deciding on a mixture of 300kW solar, 200 kW hydrogen fuel cells, and 100kW storage batteries. On a cloudy day, however, it might minimize the solar component, and boost the hydrogen and storage batteries, which are recharged at night by the fuel cells.
“The most important thing to make manufacturing greener is an integrated energy system including renewable energy such as solar and wind, hydrogen, batteries and so on,” says Takamichi Ochi, a senior manager for climate change and energy at Deloitte Tohmatsu Consulting. “To do that, the Panasonic example is close to an ideal energy system.”
With grey hydrogen, not totally green yet
The H2 Kibou Field is not totally green. It depends on so-called grey hydrogen, which is generated from natural gas in a process that can release a lot of carbon dioxide. Tankers haul 20,000 liters of hydrogen, chilled in liquid form to minus 250 Celsius, from Osaka to Kusatsu, a distance of some 80 km, about once a week. Japan has relied on countries like Australia, which has greater supplies of renewable energy, for hydrogen production. But local supplier Iwatani Corporation, which partnered with Chevron earlier this year to build 30 hydrogen fueling sites in California by 2026, has opened a technology center near Osaka that is focused on producing green hydrogen, which is created without the use of fossil fuels.
Another issue that is slowing adoption is cost. Even though electricity is relatively expensive in Japan, it currently costs much more to power a plant with hydrogen than using power from the grid, but the company expects Japanese government and industry efforts to improve supply and distribution will make the element significantly cheaper.
“Our hope is that hydrogen cost will go down, so we can achieve something like 20 yen per cubic meter of hydrogen, and then we will be able to achieve cost parity with the electrical grid,” Kawamura said.
Panasonic is also anticipating that Japan’s push to become carbon-neutral by 2050 will boost demand for new energy products. Its fuel cell factory at Kusatsu has churned out over 200,000 Ene-Farm natural gas fuel cell for home use. Commercialized in 2009, the cells extract hydrogen from natural gas, generate power by reacting it with oxygen, heat and store hot water, and deliver up to 500 watts of emergency power for eight days in a disaster. Last year, it began selling a pure hydrogen version targeted at commercial users. It wants to sell the fuel cells in the U.S. and Europe because governments there have more aggressive hydrogen cost-cutting measures than Japan. In 2021, the U.S. Department of Energy launched a so-called Hydrogen Shot program that aims to slash the cost of clean hydrogen by 80% to $1 per 1 kilogram over 10 years.
Panasonic doesn’t plan to increase the scale of its H2 Kibou Field for the time being, wanting to see other companies and factories adopt similar energy systems.
It won’t necessarily make economic sense today, Kawamura says, “but we want to start something like this so it will be ready when the cost of hydrogen falls. Our message is: if we want to have 100% renewable energy in 2030, then we must start with something like this now, not in 2030.”
Environment
EcoFlow members can save up to 65% on power stations while supporting disaster relief during the 2025 Member’s Festival
Portable power station specialist EcoFlow is kicking off its third annual Member’s Festival this month and is offering a unique new rewards program to those who become EcoFlow members. The 2025 EcoFlow Member’s Festival will offer savings of up to 65% for its participating customers, and a portion of those funds will be allocated toward rescue power solutions for communities around the globe through the company’s “Power for All” fund.
EcoFlow remains one of the industry leaders in portable power solutions and continues to trek forward in its vision to power a new tech-driven, eco-conscious future. Per its website:
Our mission from day one is to provide smart and eco-friendly energy solutions for individuals, families, and society at large. We are, were, and will continue to be a reliable and trusted energy companion for users around the world.
To achieve such goals, EcoFlow has continued to expand its portfolio of sustainable energy solutions to its community members, including portable power stations, solar generators, and mountable solar panels. While EcoFlow is doing plenty to support its growing customer base, it has expanded its reach by giving back to disaster-affected communities by helping bolster global disaster response efforts the best way it knows how– with portable power solutions.
EcoFlow and its members look to provide “Power for All”
Since 2023, EcoFlow has collaborated with organizations worldwide as part of its “Power for All” mission. This initiative aims to ensure access to reliable and timely power to disaster-affected communities across the globe, including rescue agencies, affected hospitals, and shelters, to support rescue and recovery efforts.
This fund most recently provided aid for communities affected by the recent Los Angeles wildfires, assistance to the Special Forces Charitable Trust (SFCT) in North Carolina following severe hurricanes, and support for non-profits engaged in hurricane preparedness in Florida and the Gulf Coast. Per Jodi Burns, CEO of the Special Forces Charitable Trust:
In the wake of devastating storms in Western North Carolina, reliable power was a critical need for the families we serve. Thanks to EcoFlow’s generous donation of generators, we were able to provide immediate relief, ensuring these families and their communities had access to power when they needed it most. We are so impressed with EcoFlow’s commitment to disaster response through their ‘Power for All’ program. It has made a tangible impact, and we are deeply grateful for their support and partnership in helping these families recover and rebuild.
In 2024, the US experienced 27 weather and climate events, each causing losses exceeding $1 billion, marking the second-highest annual total on record, according to National Centers for Environmental Information. The increasing frequency and severity of natural disasters underscore the critical need for reliable and timely power solutions during emergencies, much like EcoFlow and its members are helping provide through the “Power For All” initiative.
To support new and existing EcoFlow members, the company is celebrating its third annual Member’s Festival throughout April to offer a do-not-miss discount on its products and donate a portion of all sales to the “Power for All” fund to provide rescue power to those in need in the future. Learn how it all works below.
Save big and give back during the 2025 Member’s Festival
As of April 1st, you can now sign up to become an EcoFlow member to participate in the company’s exclusive 2025 Member Festival.
As a member, you can earn “EcoFlow Power Points” by completing tasks like registration, referrals, and product purchases and tracking your individual efforts toward disaster preparedness and recovery.
Beginning April 4, EcoFlow members will also be able to take advantage of exclusive discounts of up to 65% off select portable power stations, including the DELTA Pro Ultra, DELTA Pro 3, DELTA 2 Max, DELTA 3 Plus, RIVER 3 Plus, and more. However, these sale prices only last through April 25, so you’ll want to move quickly!
Click here to learn more about EcoFlow’s “Power for All” campaign. To register for EcoFlow’s 2025 Member Festival in the US, visit the EcoFlow website. To register as a member in Canada, visit here.
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Tesla is losing another top talent: its long-time head of software, David Lau, has reportedly told co-workers that he is exiting the automaker.
Tesla changed how the entire auto industry looks at software.
Before Tesla, it was an afterthought; user interfaces were rudimentary, and you had to go to a dealership to get a software update on your systems.
When Tesla launched the Model S in 2012, it all changed. Your car would get better through software updates like your phone, the large center display was responsive with a UI that actually made sense and was closer to an iPad experience than a car.
Tesla also integrated its software into its retail experience, service, and manufacturing.
David Lau deserves a lot of the credit for that.
He joined Tesla in 2012 as a senior manager of firmware engineering and quickly rose through the ranks. By 2014, he was promoted to director of firmware engineering and system integration, and in 2017, he became Vice President of software.
Lau listed the responsibilities of his team on his LinkedIn:
- Vehicle Software:
- Firmware for the powertrain, traction/stability control, HV electronics, battery management, and body control systems
- UI software and underlying Embedded Linux platforms
- Navigation and routing
- iOS and Android Mobile apps
- Distributed Systems:
- Server-side software and infrastructure that provides telemetry, diagnostics, over-the-air updates, and configuration/lifecycle management
- Data engineering and analytics platforms that power technical and business insights for an increasingly diverse set of customers across the company
- Diagnostic tools and fleet management, Manufacturing and Automation:
- Automation controls (PLC, robot)
- Server-side manufacturing execution systems that power all of Tesla’s production operations
- Product Security and Red Team for software, services, and systems across Tesla
Bloomberg reported today that Lau told his team he is leaving Tesla. The report didn’t include reasons for his stepping down.
Electrek’s Take
Twelve years at any company is a great run. At Tesla, it’s heroic. Congrats, David, on a great run. You undoubtedly had a significant impact on Tesla and software advancements in the broader auto industry.
He is another significant loss for Tesla, which has been losing a lot of top talent following a big wave of layoffs around this time last year.
I wonder who will take over. Michael Rizkalla, senior director of software engineering and vehicle firmware, is one of the most senior software engineers after Lau. He has been at Tesla for 7 years, and Tesla likes to promote within rather than hire outsiders.
There are also a lot of senior software execs working on AI at Tesla. Musk has been favoring them lately and he could fold Lau’s responsibilities under them.
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Kia’s electric SUVs are taking over. The EV3 is the best-selling retail EV in the UK this year, giving Kia its strongest sales start since it arrived 34 years ago. And it’s not just in the UK. Kia just had its best first quarter globally since it started selling cars in 1962.
Kia EV3 is the best-selling EV in the UK through March
In March, Kia sold a record nearly 20,000 vehicles in the UK, making it the fourth best-selling brand. It was also the second top-seller of electrified vehicles (EVs, PHEVs, and HEVs), accounting for over 55% of sales.
The EV3 remained the best-selling retail EV in the UK last month. Including the EV6, three-row EV9, and Niro EV, electric vehicles represented 21% of Kia’s UK sales in March.
Kia said the EV3 “started with a bang” in January, darting out as the UK’s most popular EV in retail sales. Through March, Kia’s electric SUV has held on to the crown. With the EV3 rolling out, Kia sold over 7,000 electric cars through March, nearly 50% more than in Q1 2024.
The EV3 was the best-selling retail EV in the UK in the first quarter and the fourth best-selling EV overall, including commercial vehicles.
Starting at £33,005 ($42,500), Kia said it’s the “brand’s most affordable EV yet.” It’s available with two battery packs, 58.3 kWh or 81.48 kWh, good for 430 km (270 miles) and 599 km (375 miles) of WLTP range, respectively.
With new EVs on the way, this could be just the start. Kia is launching several new EVs in the UK this year, including the EV4 sedan (and hatchback) and EV5 SUV. It also confirmed that the first PV5 electric vans will be delivered to customers by the end of the year.
Electrek’s Take
Globally, Kia sold a record 772,351 vehicles in the first quarter, its best since it started selling cars in 1962. With the new EV4, the brand’s first electric sedan and hatchback, launching this year, Kia looks to build on its momentum in 2025.
Kia has also made it very clear that it wants to be a global leader in the electric van market with its new Platform Beyond Vehicle (PBV) business, starting with the PV5 later this year.
Earlier today, we learned Kia’s midsize electric SUV, the EV5, is the fourth best-selling EV in Australia through March, outselling every BYD vehicle (at least for now). The EV5 is rolling out to new markets this year, including Canada, the UK, South Korea, and Mexico. However, it will not arrive in the US.
For those in the US, there are still a few Kia EVs to look forward to. Kia is launching the EV4 globally, including in the US, later this year. Although no date has been set, Kia confirmed the EV3 is also coming. It’s expected to arrive in mid-2026.
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