About Caldera
Caldera is on a mission to make sustainable, zero-carbon heat accessible and affordable for industry. Leveraging patented technology that has captured attention from 12 sectors across 15 countries, we’re tackling one of the climate crisis’s most overlooked challenges: industrial heat.
Based in Hampshire, just outside London, our headquarters serve as a comprehensive centre for innovation. Here, we manage everything from initial product development and prototyping to full-scale production. Our team, united by a passion for climate solutions, brings together a diverse range of expertise and backgrounds. Together, we’re not just imagining a cleaner future; we’re building it.
2017
2018
2019
Caldera is founded by James Macnaghten and Guy Winstanley to pave the way for sustainable and affordable energy storage.
We’re the first in the world to create a heat storage material using volcanic rocks and recycled aluminium.
We invent our vacuum insulation and heat extraction systems. And combine our newly developed technologies in a 100kWh domestic prototype.
2020
2021
2022
We’re thrilled to fit the first Warmstone in our CEO’s home. We show our technology is a safe and reliable solution to provide heat using 100% sustainable energy.
Our crowdfunding campaign is a big success – 1,300 people invest on CrowdCube, raising £1,520,000 and exceeding our goal by 250%.
Winning multiple grants, we’re awarded a total of £800,000 in UK government funding to achieve our technology’s full potential. We begin to develop our first full-scale industrial product.
2017
Caldera is founded by James Macnaghten and Guy Winstanley to pave the way for sustainable and affordable energy storage. Despite the technology being in its infancy, we’re convinced of the untapped potential of thermal energy storage.
2018
We’re the first in the world to create a sustainable heat storage material using volcanic rocks and recycled aluminium.
2019
We invent our vacuum insulation and heat extraction systems. And combine our newly developed technologies in a 100kWh domestic prototype.
2020
We’re thrilled to fit the first Warmstone in our CEO’s home. We show our technology is a safe and reliable solution to provide heat using 100% sustainable energy.
2021
Our crowdfunding campaign is a big success – 1,300 people invest on CrowdCube, raising £1,520,000 and exceeding our goal by 250%.
2022
Winning multiple grants, we’re awarded a total of £800,000 in UK government funding to achieve our technology’s full potential. We begin to develop our first full-scale industrial product.