HD Korea Shipbuilding & Offshore Engineering Leads the Zero-Carbon Era with 'SMR-Powered Ship'

- Received Approval in Principle (AIP) from the American Bureau of Shipping (ABS) for nuclear-powered container ship

- Unveiled model at U.S. New Nuclear for Maritime Summit - showcasing economic efficiency, performance, and safety

- "Developing a business model by 2030 to accelerate the commercialization of marine nuclear technology"

SEOUL, South Korea, Feb. 13, 2025 /PRNewswire/ -- HD Korea Shipbuilding & Offshore Engineering (HD KSOE), an intermediary holding company for HD Hyundai's shipbuilding sector, has unveiled a nuclear-powered container ship model utilizing Small Modular Reactor (SMR) technology, accelerating the development of nuclear-powered vessels.

On the 12th(Wednesday), HD KSOE announced that it had revealed its nuclear-powered container ship design model for the first time at the New Nuclear for Maritime Houston Summit, held at the Asia Society Texas Center in Houston, USA.

Previously, HD KSOE had obtained Approval in Principle (AIP) from the American Bureau of Shipping (ABS) for a 15,000 TEU-class container ship design model applying SMR technology.

The newly unveiled design model features enhanced economic efficiency and safety by incorporating actual equipment and safety design concepts.

Unlike conventional ships, nuclear-powered vessels do not require engine exhaust systems or fuel tanks. HD KSOE has optimized the space previously occupied by large engine room equipment to accommodate additional containers, enhancing economic efficiency. The company has also applied a marine radiation shielding system using a double-tank method with stainless steel and *light water to ensure safety.

Furthermore, HD KSOE, in collaboration with global energy technology company Baker Hughes, has applied a *supercritical carbon dioxide-based propulsion system, improving thermal efficiency by approximately 5% compared to existing steam-based propulsion systems.

HD KSOE plans to establish a marine nuclear demonstration facility at its Future Technology Test Center in Yongin, Gyeonggi Province, to verify safety designs.

"Nuclear-powered vessels can be a game-changer in the current shipbuilding market, where carbon neutrality is emerging," said Patrick Ryan, Chief Technology Officer of ABS. "ABS and HD KSOE will contribute to accelerating the commercialization of marine nuclear technology in the global shipbuilding market."

Meanwhile, at the summit, a discussion on 'Maritime Civil Nuclear Propulsion for Large Ships' was held, featuring Park Sangmin, Head of HD KSOE's Green Energy Research Lab; Christopher J. Wiernicki, Chairman, President, and CEO of ABS; and John Michael Richardson, former U.S. Chief of Naval Operations.

"HD KSOE is strengthening cooperation not only with major classification societies but also with international regulatory bodies to establish international regulations necessary for the commercialization of nuclear-powered vessels," said Park Sangmin. "Starting with the land-based SMR reactor manufacturing project, we aim to develop a marine nuclear business model by 2030."

Since February last year, HD KSOE has been accelerating related technology development through joint research on next-generation SMRs with TerraPower. In December of the same year, the company secured an order to manufacture the main equipment for TerraPower's Natrium reactor, which is being constructed in Wyoming, USA.

*Light water: Water used as a coolant and neutron moderator in reactors.

*Supercritical carbon dioxide-based propulsion system: A technology that generates energy by heating carbon dioxide in a supercritical state. It enables high-efficiency power generation even at low temperatures and pressures, making it a next-generation power generation technology.

- Received Approval in Principle (AIP) from the American Bureau of Shipping (ABS) for nuclear-powered container ship

- Unveiled model at U.S. New Nuclear for Maritime Summit - showcasing economic efficiency, performance, and safety

- "Developing a business model by 2030 to accelerate the commercialization of marine nuclear technology"

SEOUL, South Korea, Feb. 13, 2025 /PRNewswire/ -- HD Korea Shipbuilding & Offshore Engineering (HD KSOE), an intermediary holding company for HD Hyundai's shipbuilding sector, has unveiled a nuclear-powered container ship model utilizing Small Modular Reactor (SMR) technology, accelerating the development of nuclear-powered vessels.

On the 12th(Wednesday), HD KSOE announced that it had revealed its nuclear-powered container ship design model for the first time at the New Nuclear for Maritime Houston Summit, held at the Asia Society Texas Center in Houston, USA.

Previously, HD KSOE had obtained Approval in Principle (AIP) from the American Bureau of Shipping (ABS) for a 15,000 TEU-class container ship design model applying SMR technology.

The newly unveiled design model features enhanced economic efficiency and safety by incorporating actual equipment and safety design concepts.

Unlike conventional ships, nuclear-powered vessels do not require engine exhaust systems or fuel tanks. HD KSOE has optimized the space previously occupied by large engine room equipment to accommodate additional containers, enhancing economic efficiency. The company has also applied a marine radiation shielding system using a double-tank method with stainless steel and *light water to ensure safety.

Furthermore, HD KSOE, in collaboration with global energy technology company Baker Hughes, has applied a *supercritical carbon dioxide-based propulsion system, improving thermal efficiency by approximately 5% compared to existing steam-based propulsion systems.

HD KSOE plans to establish a marine nuclear demonstration facility at its Future Technology Test Center in Yongin, Gyeonggi Province, to verify safety designs.

"Nuclear-powered vessels can be a game-changer in the current shipbuilding market, where carbon neutrality is emerging," said Patrick Ryan, Chief Technology Officer of ABS. "ABS and HD KSOE will contribute to accelerating the commercialization of marine nuclear technology in the global shipbuilding market."

Meanwhile, at the summit, a discussion on 'Maritime Civil Nuclear Propulsion for Large Ships' was held, featuring Park Sangmin, Head of HD KSOE's Green Energy Research Lab; Christopher J. Wiernicki, Chairman, President, and CEO of ABS; and John Michael Richardson, former U.S. Chief of Naval Operations.

"HD KSOE is strengthening cooperation not only with major classification societies but also with international regulatory bodies to establish international regulations necessary for the commercialization of nuclear-powered vessels," said Park Sangmin. "Starting with the land-based SMR reactor manufacturing project, we aim to develop a marine nuclear business model by 2030."

Since February last year, HD KSOE has been accelerating related technology development through joint research on next-generation SMRs with TerraPower. In December of the same year, the company secured an order to manufacture the main equipment for TerraPower's Natrium reactor, which is being constructed in Wyoming, USA.

*Light water: Water used as a coolant and neutron moderator in reactors.

*Supercritical carbon dioxide-based propulsion system: A technology that generates energy by heating carbon dioxide in a supercritical state. It enables high-efficiency power generation even at low temperatures and pressures, making it a next-generation power generation technology.

** The press release content is from PR Newswire. Bastille Post is not involved in its creation. **

HD Korea Shipbuilding & Offshore Engineering Leads the Zero-Carbon Era with 'SMR-Powered Ship'

New central control unit coordinates solar, storage, backup power and household consumption in a scalable home energy ecosystem

DÜSSELDORF, Germany, May 11, 2026 /PRNewswire/ -- Zendure, the global pioneer of plug-in home energy management systems (HEMS), is expanding the SolarFlow Mix Series with PowerHub. The central control unit combines photovoltaics, storage, grid and backup power, and controllable loads such as heat pumps, EV chargers and smart home devices into one architecture, evolving the SolarFlow Mix Series from modular storage into a fully integrated home energy ecosystem.

Scalable energy system for growing demand

PowerHub coordinates battery storage, solar input and household loads as the intelligent center of the ecosystem. It scales from an 8 kWh base up to 50 kWh per unit, or 150 kWh in multi-unit setups. Up to three SolarFlow Mix units can connect to a single PowerHub, delivering up to 12 kW of continuous output, enough for an entire household including heat pumps and EV charging. It suits single-family homes, multi-generation households and small commercial applications.

PowerHub is available in single-phase (1P) and three-phase (3P) versions, matching homes across Germany, France and the Netherlands. The 3P version provides higher continuous power, full three-phase EV charging up to 22 kW, and balanced load distribution, essential for running heat pumps, induction cooktops and high-power EVFlow AC simultaneously. In backup mode, 1P secures one phase with a single SolarFlow Mix unit. 3P secures all three phases using three units in parallel.

The PowerHub also supports up to 43 kW three-phase PV input, 14 kW single-phase PV input and 24 kW solar capacity via native inputs, plus compatibility with third-party PV arrays. For EV charging upgrades, PowerHub natively integrates with Zendure's upcoming bidirectional smart EVFlow AC (7.4 / 11 / 22 kW, Socket and tethered variants), which supports ISO 15118-20 vehicle-to-grid (V2G), turning any compatible EV into a mobile home battery.

Smart energy management with ZENKI AI and ZenWave™

PowerHub runs on Zendure's open energy platform ZEN+OS and is managed by ZENKI AI, which learns household habits, weather and electricity prices to decide minute by minute when to store and use energy. Combined with ZenWave™, Zendure's dynamic tariff service, households can automatically trade energy on the spot market and significantly reduce bills. Open interfaces connect the ecosystem with EV chargers, heat pumps and smart home devices via European standards:

• SG-Ready: heat pumps respond to electricity prices and grid signals, compatible with 5,000+ heat pump models.
• EEBus: European standard linking smart appliances to the energy system.
• OCPP: open industry standard for EV chargers.
• VPP-Ready: compatible with virtual power plants for grid stabilisation and extra revenue.

Data is processed locally, so the home keeps managing its own energy even without internet, ZENKI AI's advanced features remain cloud-based.

Whole-home backup for energy security

During grid outages, PowerHub powers the entire household, not just individual devices, securing lighting, refrigerators and internet while supporting heat pumps and EV chargers. With 10 ms transfer time, it keeps computers and sensitive medical devices running uninterrupted. Black Start enables independent restart after a full blackout using only solar energy. Even off-grid, EV charging stays available at up to 11 kW.

Simple installation, higher cost-effectiveness

By integrating multiple components into one architecture, PowerHub reduces interfaces, simplifies installation and boosts efficiency. Self-generated solar is used more consistently, surplus energy is stored for evening use or high-demand loads. A household consuming 15,000 kWh annually can cut electricity costs by up to 88–91% with a PowerHub setup plus a 16 kWp PV system and ZenWave™, saving up to €3,168/year with three SolarFlow 3000 Mix AC+ units, or up to €5,472/year with three SolarFlow 4000 Mix Pro or Mix AC+ units.

PowerHub at a glance

• Versions: 1P and 3P
• Storage: 8–150 kWh (up to 3 SolarFlow Mix units)
• Continuous power: up to 12 kW
• Solar input: up to 24 kW native + third-party PV
• EV charging: up to 22 kW (3P) / 7.4 kW (1P), 11 kW off-grid
• Backup switching: 10 ms (UPS-grade)
• Open protocols: SG-Ready, EEBus, OCPP, VPP-Ready
• Installation cost: from €2,000–€3,500 down to €300–€800
• Self-sufficiency: up to 91% (typical German household, 16 kWp PV + 3× SolarFlow 4000 Mix series)

Pioneer Programme

At launch, the first 1,000 customers in Europe who purchase and install two or more SolarFlow 4000 Mix Pro or SolarFlow 4000 Mix AC+ units will receive a Zendure PowerHub free of charge. Details on Zendure's official website.

Availability

PowerHub is now available for pre-order, with shipments starting in July 2026. Pricing for the single-phase version starts at €699 in Germany, €719 in France and other European regions, and €729 in the Netherlands.

About Zendure

Zendure is a global pioneer of plug-in Home Energy Management Systems (HEMS), with R&D and operations centres in Silicon Valley, the Greater Bay Area, Japan and Germany. Its mission is to deliver reliable, affordable clean energy worldwide by popularizing the latest EnergyTech. The SolarFlow balcony energy storage system transforms sunlight into a safe, reliable and resilient energy source for everyday living.

Contact:
Patrick Chris
chris.qiu@zendure.com 
+86-13697796028

New central control unit coordinates solar, storage, backup power and household consumption in a scalable home energy ecosystem

DÜSSELDORF, Germany, May 11, 2026 /PRNewswire/ -- Zendure, the global pioneer of plug-in home energy management systems (HEMS), is expanding the SolarFlow Mix Series with PowerHub. The central control unit combines photovoltaics, storage, grid and backup power, and controllable loads such as heat pumps, EV chargers and smart home devices into one architecture, evolving the SolarFlow Mix Series from modular storage into a fully integrated home energy ecosystem.

Scalable energy system for growing demand

PowerHub coordinates battery storage, solar input and household loads as the intelligent center of the ecosystem. It scales from an 8 kWh base up to 50 kWh per unit, or 150 kWh in multi-unit setups. Up to three SolarFlow Mix units can connect to a single PowerHub, delivering up to 12 kW of continuous output, enough for an entire household including heat pumps and EV charging. It suits single-family homes, multi-generation households and small commercial applications.

PowerHub is available in single-phase (1P) and three-phase (3P) versions, matching homes across Germany, France and the Netherlands. The 3P version provides higher continuous power, full three-phase EV charging up to 22 kW, and balanced load distribution, essential for running heat pumps, induction cooktops and high-power EVFlow AC simultaneously. In backup mode, 1P secures one phase with a single SolarFlow Mix unit. 3P secures all three phases using three units in parallel.

The PowerHub also supports up to 43 kW three-phase PV input, 14 kW single-phase PV input and 24 kW solar capacity via native inputs, plus compatibility with third-party PV arrays. For EV charging upgrades, PowerHub natively integrates with Zendure's upcoming bidirectional smart EVFlow AC (7.4 / 11 / 22 kW, Socket and tethered variants), which supports ISO 15118-20 vehicle-to-grid (V2G), turning any compatible EV into a mobile home battery.

Smart energy management with ZENKI AI and ZenWave™

PowerHub runs on Zendure's open energy platform ZEN+OS and is managed by ZENKI AI, which learns household habits, weather and electricity prices to decide minute by minute when to store and use energy. Combined with ZenWave™, Zendure's dynamic tariff service, households can automatically trade energy on the spot market and significantly reduce bills. Open interfaces connect the ecosystem with EV chargers, heat pumps and smart home devices via European standards:

• SG-Ready: heat pumps respond to electricity prices and grid signals, compatible with 5,000+ heat pump models.
• EEBus: European standard linking smart appliances to the energy system.
• OCPP: open industry standard for EV chargers.
• VPP-Ready: compatible with virtual power plants for grid stabilisation and extra revenue.

Data is processed locally, so the home keeps managing its own energy even without internet, ZENKI AI's advanced features remain cloud-based.

Whole-home backup for energy security

During grid outages, PowerHub powers the entire household, not just individual devices, securing lighting, refrigerators and internet while supporting heat pumps and EV chargers. With 10 ms transfer time, it keeps computers and sensitive medical devices running uninterrupted. Black Start enables independent restart after a full blackout using only solar energy. Even off-grid, EV charging stays available at up to 11 kW.

Simple installation, higher cost-effectiveness

By integrating multiple components into one architecture, PowerHub reduces interfaces, simplifies installation and boosts efficiency. Self-generated solar is used more consistently, surplus energy is stored for evening use or high-demand loads. A household consuming 15,000 kWh annually can cut electricity costs by up to 88–91% with a PowerHub setup plus a 16 kWp PV system and ZenWave™, saving up to €3,168/year with three SolarFlow 3000 Mix AC+ units, or up to €5,472/year with three SolarFlow 4000 Mix Pro or Mix AC+ units.

PowerHub at a glance

• Versions: 1P and 3P
• Storage: 8–150 kWh (up to 3 SolarFlow Mix units)
• Continuous power: up to 12 kW
• Solar input: up to 24 kW native + third-party PV
• EV charging: up to 22 kW (3P) / 7.4 kW (1P), 11 kW off-grid
• Backup switching: 10 ms (UPS-grade)
• Open protocols: SG-Ready, EEBus, OCPP, VPP-Ready
• Installation cost: from €2,000–€3,500 down to €300–€800
• Self-sufficiency: up to 91% (typical German household, 16 kWp PV + 3× SolarFlow 4000 Mix series)

Pioneer Programme

At launch, the first 1,000 customers in Europe who purchase and install two or more SolarFlow 4000 Mix Pro or SolarFlow 4000 Mix AC+ units will receive a Zendure PowerHub free of charge. Details on Zendure's official website.

Availability

PowerHub is now available for pre-order, with shipments starting in July 2026. Pricing for the single-phase version starts at €699 in Germany, €719 in France and other European regions, and €729 in the Netherlands.

About Zendure

Zendure is a global pioneer of plug-in Home Energy Management Systems (HEMS), with R&D and operations centres in Silicon Valley, the Greater Bay Area, Japan and Germany. Its mission is to deliver reliable, affordable clean energy worldwide by popularizing the latest EnergyTech. The SolarFlow balcony energy storage system transforms sunlight into a safe, reliable and resilient energy source for everyday living.

Contact:
Patrick Chris
chris.qiu@zendure.com 
+86-13697796028

** This press release is distributed by PR Newswire through automated distribution system, for which the client assumes full responsibility. **

Zendure Launches PowerHub, Europe's First Plug-In HEMS Hub That Turns Any Solar Home Into a Whole-Home Energy Ecosystem