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THE BWRX-300
A POWER PLANT,
NOT A POWERPOINT

The world’s need for sustainable and reliable energy has never been greater—and the BWRX-300 can help meet that need.

 

GE Vernova Hitachi’s (GVH) BWRX-300 is not a concept, a plan, or a PowerPoint. It's now under construction. Its configuration, based on proven technologies, has been selected for the leading project in the Western world with construction underway in Canada on the first BWRX-300. Construction of the first unit is estimated to be completed by the end of 2029 and in commercial operation by the end of 2030.

 

The BWRX-300 is a source of electricity generation capable of powering communities across the globe with the energy they rely on to thrive.

 

With more than 65 years of nuclear industry experience and a rich legacy of excellence and quality, GE Vernova Hitachi has the energy technologies to change the world—and the BWRX-300 is a key part of that mission.

How GE Vernova Hitachi is leading the way

The first small modular reactor in the Western world

It's official: the Darlington New Nuclear Project

Ontario will be home to the Western world’s first SMR. Working in collaboration with Ontario Power Generation (OPG) and others, construction began in May 2025 and is estimated to be completed in late 2029.

~18,000

jobs to be provided during construction

3,700

sustainable jobs projected per year over decades after construction

80%

of project spending will go to companies in Ontario during construction

+$38.5B

expected to be added in GDP for Canada

1.2 GW

of electricity will be provided by the four planned units, which can power over 1 million homes and businesses

Progress in motion

Watch Darlington's new chapter begin

Check out the construction already underway at the Darlington New Nuclear Project site. This video from Ontario Power Generation (OPG) shows the initial stages of construction on the first of four BWRX-300s at the Bowmanville, Ontario site.

Why the BWRX-300?

A closer look

The BWRX-300 uses modern construction methods and advanced concrete solutions, inspired by proven techniques from GE Vernova’s long history of nuclear expertise as well as oil, gas, and other power industries.

By using modular construction, the BWRX-300 can be built in just ~24-36 months and boasts a compact configuration, reducing the overall plant site by about 90% and using ~50% less concrete per unit of energy produced. That means faster, more cost-effective construction and a smaller environmental footprint.
REACTOR TYPE
BOILING WATER REACTOR
for proven scalability and cost-effectiveness
ELECTRICAL CAPACITY
300 MW(E) NET TO THE GRID
equal to powering 300,000 homes
FUEL SUPPLY
PROVEN FUEL CONFIGURATION
utilizing established and reliable supply chain
APPROACH TO SAFETY SYSTEMS
PASSIVE
enhancing safety margin
DESIGN LIFE
60 YEARS
reinforcing stability and sustainability
REFUELING CYCLE
12-24 MONTHS
bolstering efficiency and reducing operating costs

Recent developments

BWRX-300 SMR news

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Further reading

Learn more about GE Vernova Hitachi’s BWRX-300 nuclear reactor

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*Decarbonization as used in this document is intended to mean the reduction of carbon emissions on a kilogram per megawatt hour.