Latest News

• Region: North America
• Topics: Geothermal
• Date: 9th June 2026

Calpine has announced the completion of a 25 MW expansion project at The Geysers geothermal complex in Sonoma County, California.

The addition builds on continued investments in The Geysers over decades and follows the completion of a 38 MW energy storage system at the site in 2024.

The new capacity will generate enough electricity to power over 25,000 homes each year, according to Aimee Blaine, Senior Vice President of Calpine's geothermal region.

“As California's electricity demand continues to grow, investments in reliable, around-the-clock renewable energy are more important than ever,” said Blaine.

“The Geysers is one of the nation's most important geothermal resources, and this expansion reflects our commitment to strengthening grid reliability while advancing California’s clean energy goals.”

For over 65 years, The Geysers has provided clean, geothermal energy across California, and is operated by Calpine, a unit of Constellation Energy Corporation, a Fortune 200 company headquartered in Baltimore and the nation's largest producer of clean energy.

Of the 25 MW expansion, 18 MW will be directed to Clean Power Alliance (CPA), a locally operated, not-for-profit electricity provider which serves customers across Southern California, providing reliable, around-the-clock renewable power as demand for clean electricity continues to grow.

The remaining 7 MW, which was brought online last year, is being supplied to MCE to support Bay Area residents and businesses.

“Clean Power Alliance is committed to delivering dependable clean energy to our customers, and geothermal power plays an important role in providing around-the-clock renewable electricity,” said Matthew Langer, Chief Operating Officer, Clean Power Alliance.

“Partnerships like this strengthen California's clean energy future while supporting a more resilient and sustainable grid.”

• Region: North America
• Topics: Geothermal
• Date: 3rd June 2026

Geothermal specialist Enertech Global celebrated its 30th anniversary on June 2, 2026 — a true pioneer of the industry in the USA.

Founded in 1996 in Greenville, Illinois, it is a leading manufacturer and distributor of ground-source heat pumps for geothermal HVAC applications and air-source heat pumps for hydronic HVAC applications.

The company puts its success down to a track record of innovation, perseverance and an unwavering commitment to customers, partners and its team members.

What began in 1996 as a successful distributor of geothermal heating and cooling systems throughout the Midwest has now grown into an internationally recognised manufacturer known for engineering excellence and industry-leading innovation.

“As thankful and appreciative as I am for the past, I cannot help but be even more excited about our future,” said Tim Wright, CEO.

“The talented people who call Enertech home continue to inspire me every day. This team has already demonstrated what is possible through passion, creativity and hard work — and we are just getting started.”

Over the past three decades, Enertech has challenged convention and redefined what is possible within the HVAC and geothermal industries.Fuelled by the curiosity, ingenuity, and determination of its team members, the company has achieved groundbreaking milestones, including:

• Developing the industry's first multi-position packaged geothermal unit
• Manufacturing the first variable-speed water-to-water geothermal system made in the USA
• Introducing NIBE's advanced air-to-water heat pump technology to the US and Canadian markets
• Expanding innovative applications for residential, commercial, and mixed-use developments through creative engineering and system integration

Today, Enertech is positioned to help shape the future of sustainable heating and cooling by delivering affordable, energy-efficient solutions for homes, businesses, and communities across North America and beyond, according to Wright.

“Without question, we have the best group of talented team members in the industry,” he said.

“Together, we are building something truly special. As we celebrate 30 years, we also look ahead with excitement and confidence toward the next 30 years of making our mark on this incredible industry.”

• Region: Europe
• Topics: Geothermal
• Date: 3rd June 2026

Geothermal is increasingly in the spotlight as policymakers and strategists search for solutions to the continent’s energy supply challenges.

• Region: Asia Pacific
• Topics: Geothermal
• Date: 1st June 2026

Earth Sciences New Zealand and Ara Ake, New Zealand’s energy innovation centre, have released the 2026/2027 Geoheat Action Plan designed to rapidly grow the use of geothermal heat throughout the country.

• Region: North America
• Topics: Geothermal
• Date: 31st May 2026

Geothermal may hold the answer to building out the energy required as Canada accelerates toward an ‘age of electricity,’ according to Tim Weber, Co-Founder and CEO of Diverso Energy.

• Region: North America
• Topics: Geothermal
• Date: 28th May 2026

Tekcapital Plc, the UK intellectual property investment group, has announced the formation of its fifth portfolio company Vesari Inc, a new U.S. incorporated company (Vesari.ai) set up to acquire, develop and commercialise generative AI intellectual property in the field of geothermal-powered hyperscale data centres.

• Region: Europe
• Topics: Geothermal
• Date: 28th May 2026

Syntholene Energy Corp. has announced that the construction of its geothermal-integrated synthetic fuel demonstration facility in Húsavík, Iceland, is ahead of schedule, with first operations now penned as early as next month

• Region: Europe
• Topics: Geothermal
• Date: 27th May 2026

The Urban Vibro Truck is a seismic survey vehicle developed specifically for urban environments and one that could play a key role in the evolution of geothermal energy in Europe.

The truck, built by Herrenknecht AG, picked up the Ruggero Bertani European Geothermal Innovation Award 2026 from the European Geothermal Energy Council (EGEC) earlier this year at the European Geothermal Innovation Awards.

These awards recognise companies that make outstanding contributions to advancing geothermal energy in Europe. 

Herrenknecht’s Urban Vibro Truck is a vehicle that is specifically designed for carrying out seismic surveys in towns and cities.

Its significantly reduced noise emissions enable surveys to be carried out during the night while minimising impacts on local residents.

The vehicle also has EU road approval as a tractor, which can reduce permitting requirements for seismic survey activities.

Speaking after the awards, which took place in Germany in February, Daniel Jaskulski, Division Manager – New Applications, Herrenknecht AG, said the vehicle is already working hard collecting data.

“We didn’t just build a nice vehicle that looks good, we have built a very functional vehicle which can make a real difference for the geothermal sector because now we can conduct seismic surveys much faster and also with better quality, and this is the most important thing,” he said.

The first Urban Vibro Truck was built as a scientific test vehicle, supported by the German Federal Ministry for Economic Affairs and Climate Action, with additional trucks now in production.

“We already have one truck that can carry out surveys in towns and cities, and our goal is to have 10 of our Urban Vibro Trucks on the market by the end of 2026,” said Jaskulski.

The Ruggero Bertani European Geothermal Innovation Award is given to companies which have made an outstanding contribution towards the field of geothermal energy in the form of innovative products, scientific research or project initiatives.

• Region: Europe
• Topics: Geothermal
• Date: 26th May 2026

French geothermal group Arverne has announced the successful completion of a new major financing step for its subsidiary Lithium de France, alongside its partner Equinor Ventures AS.

The move supports the advance of Lithium de France’s pre-industrial phase, covering drilling activities, the DLE demonstration plant and Front-End Engineering Design (FEED), a key component of the Definitive Feasibility Study (DFS), according to an Arverne statement.

The project targets annual production of 27,000 tonnes of lithium carbonate, to equip nearly 800,000 electric vehicles, while delivering 2.2 TWh of geothermal heat to businesses, farmers and local authorities in Northern Alsace.

The new financing takes the form of a convertible note of up to €33mn, maturing on 30 June 2027, with Arverne and Equinor Ventures AS both participating at their pro rata share.

Upon completion of a qualifying financing of €50mn, the principal amount and accrued and uncapitalised interest will be converted to Lithium de France shares.Pierre Brossollet, Arverne’s founder and CEO of Arverne, said it marks a significant step in the execution of the company’s so-called ‘Dual Flow’ strategic plan and underscores the continued confidence of our long-standing partner Equinor ventures.

“Recognised by the French State as one of the 150 Major Strategic Projects, Lithium de France stands out as one of the most promising industrial developments in geothermal heat and lithium in Europe, combining competitiveness with the energy transition,” he said.

Katherine Peachey, head of Equinor Ventures, said this latest financing reflects the company’s continued support for Lithium de France.

“Equinor Ventures, a shareholder in Lithium de France since 2021, reaffirms its confidence in the company, its management team and its development plans to deliver sustainable, low-carbon lithium and geothermal heat production in Europe.”

• Region: North America
• Topics: Geothermal
• Date: 21st May 2026

XGS Energy has announced the appointment of Richard Chong as Chief Financial Officer, bringing over 25 years of energy finance experience to the role.

• Region: North America
• Topics: Geothermal
• Date: 20th May 2026

Energy services giant Baker Hughes has teamed up with Helmerich & Payne, Inc. (H&P), a provider of drilling solutions and technologies, to explore opportunties in geothermal.

• Region: North America
• Topics: Geothermal
• Date: 18th May 2026

The USA produced nearly three times as much solar, wind and geothermal power in 2025 – around 20% of the nation’s power – as it did in 2016, with overall growth in 49 states.