• RheEnergise®

    Ultra low cost & globally scalable

    Long Duration Energy Storage

    About Us
  • High-Density Hydro®

    2.5 x Energy & 2.5 x Power

    Our Solution
  • Find Out More

    The Team

    Join with our team of dedicated experts and 

    help make a difference to the climate crisis

    Find out more
  • Latest News

    Latest updates from the first project in Devon, UK

    Watch the Film

RheEnergise’s patented High-Density Hydro® (HD Hydro®) is a next-generation Pumped Storage Hydropower (PSH) solution delivering clean, low-cost long-duration energy storage. By using a high-density, environmentally benign working fluid, HD Hydro provides 2.5x the performance of traditional PSH.


Clean:

Bringing reliability to intermittent renewables and eliminating the need for fossil fuels.


Low cost:

PSH has over 100 years of technological development. By leveraging this established industry for global deployment we mitigate technological risk. Being 2.5x smaller, by volume, means dramatically lower project costs.


Scalable:
HD Hydro® uses hills not mountains, unlocking more than enough sites to solve the energy transition many times over.


About RheEnergise®

Our Market Opportunity

The long-duration energy storage (LDES) market is projected to be vast: 

  • McKinsey: $4 trillion by 2040
  • UBS: 34x market growth
  • LDES Council: “Must scale 50x faster”
  • Bloomberg: “Exponential growth”

Few markets are measured in trillions of dollars. RheEnergise’s solution delivers best-in-class economics and is designed for the most active segments of the traded energy market. As a result, we are experiencing exceptional customer demand. 

Our Team, Skills & Experience

Together we are revolutionising energy storage

Our team is a diverse group of hardworking individuals who are united by the same goal of transforming the energy system and creating a sustainable future.

The team encompasses mechanical and electrical engineering, fluid dynamics, mechatronics, software engineering, chemistry. Business development & finance.


Looking for a rewarding career? Speak to us...

Exceptional team skills

4 PhDs, 9 Master’s Degrees, 
14 languages spoken fluently. 

Founders

Stephen Crosher

CEO & Co-Founder

Tamás Bertényi

CTO & Co-Founder

Graham Cook

CFO & Co-Founder

Board

Jim Campion

Chair

Yves Rannou

Non Execuitive Director

Ian Thomas

Board Observer LCIF Fund

Advisors

Senior Team

In Memoriam

Prof. Richard Cochrane

CIO & Co-Founder

Prof. Cochrane was Director of Education and Associate Professor at Exeter University. A Chartered Engineer and Fellow of the Energy Institute. Richard designed the Quiet Revolution QR5 helical VAWT. He also led the development of a high efficiency double regulated Kaplan turbine.


Richard Cochrane passed away on 25th May 2023. He dedicated his career to fighting climate change. The entire team at RheEnergise is committed to carrying on his vision.

Our Customers

RheEnergise customers are renewable energy developers, independent power producers, infrastructure operators and utilities. Companies that seek to own infrastructure and operate energy assets.

Beachhead markets: Mines, data centres, co-located solar/wind, and sites constrained by water availability where legacy hydropower is not viable.

Customer acquisition is relationship-led. They co-identify viable sites, provide performance and cost data, and facilitate development.


If you would like to discuss a potential project please get in touch...


We are a solution provider, with 3 key phases in delivery, we provide : 

News

RheEnergise® on BBC News
See our latest update from site. Watch the video

UK
RheEnergise Limited
Collective Auction Rooms
Room 302
5-7 Buck Street
London
NW1 8NJ

RheEnergise Limited | Company number 11927250

Registered office: Collective Auction Rooms, 5-7 Buck Street,

London, United Kingdom, NW1 8NJ

Canada
5200 Rue Angers
Montréal
Quebec
H4E 1C