James Macnaghten
CEO
James Macnaghten founded Caldera with Guy Winstanley in 2017. James is a Cambridge trained engineer, experienced CEO, entrepreneur and engineer with 15 years' of engineering experience in energy research and development and over 25 years' experience in business. He has built (and still owns) Cambridge’s largest tourist business and was previously CEO of Isentropic for 10 years; a company developing a large-scale thermo-mechanical electricity storage system. He has been either co-inventor or sole inventor on a wide number of thermal energy storage patents with more than 150 granted patents (20+patent families) to his name.
Guy Winstanley
COO
Guy is a co-founder of Caldera. He has a BSc(Hons) Engineering degree from Exeter University and he has 30' years of operational, project and engineering experience. His career has encompassed R&D, manufacturing processes and operations management, including international experience in UK, Germany and Asia. He has previous experience in energy storage at Isentropic Ltd as Head of Engineering and Operations, manufacturing and business development at Linde AG Forklift and T&N (Federal Mogul).
Mark Lee
Non-Executive
Mark is a Senior Banker with over 20' years of experience working with industrial clients across Europe. He has grown, led and restructured businesses, with a focus on providing acquisition financing and capital structure advice. Mark holds a law degree from Durham University and an MSc from CASS Business School.
Andrew Brown
Non-Executive
Andrew has more than 10 years’ experience leading the corporate affairs functions for global listed firms across a range of regulated and unregulated sectors, including the UK’s largest generator of renewable electricity, Drax Group Plc. Currently a partner at Apella Advisors, he has a deep knowledge of issues and crisis management as well as working with legislators and regulators across multiple jurisdictions.
Ranulf Slee
Lead Test Engineer
Ranulf has a BSC(Hons) Chemistry degree from Manchester University and has applied this to a career as a research and development scientist. He has a successful track record in delivering ground-breaking research projects including cutting edge batteries and fuel cells through his work with DERA, QinetiQ and Ceres Power. He has worked with James and Guy for Isentropic Ltd and has been part of the Caldera team for 3 years.
SUPPORTING ORGANISATIONS
We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept All”, you consent to the use of ALL the cookies. However, you may visit "Cookie Settings" to provide a controlled consent.
Manage consent
Privacy Overview
This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience.
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.