The Sheffield Energy Works Team
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Lizzie Stygall
PROJECT DEVELOPER
Lizzie has worked as a funding and projects manager with start-ups and SMEs, guiding projects ranging from sustainable transport solutions to deep tech.
Lizzie believes cross-sector decarbonisation can benefit economies and public health as much as the environment around us. She’ll often be found representing Sheffield Energy Works at events and working on our upcoming pipeline of clean energy projects.
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Lakshmi D Vemula
PROJECT MANAGER
Recent University of Sheffield Business Management graduate Lakshmi has joined our clean energy team as a Project Manager.
He’s passionate about sustainable energy, community and practical, people-focused solutions that create long-term value. He’s worked with the team and project partners to develop financial and carbon-offset modelling, and bring our first Community Share Offer to life. -

Judi Greenwood
DIRECTOR
Judi is a heritage, regeneration and retrofit professional with a broad network across the property and construction industry. Her most ambitious retrofit project has been a Grade 2 derelict town centre building in Conwy, North Wales in collaboration with Conwy County Borough Council.
Judi has worked with Future of Greater Manchester and Women in Property to broaden participation in property and construction.
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Matthew Killeya
DIRECTOR
Dr Matthew Killeya is an entrepreneur, campaigner and activist. He was Chief Investment Officer and Partner of Cantab Capital Partners and co-founded the Cantab Institute in the Mathematics of Information at Cambridge University. He is a board member for Energise Barnsley, a director of South Yorkshire Climate Alliance and a strategic adviser to the National Geothermal Centre.
He has worked with politicians including South Yorkshire Mayor Oliver Coppard and Olivia Blake MP and is a fellow of the Labour Together think tank.
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Jonathan Hind
DIRECTOR
Jonathan’s 15 years of experience in construction and infrastructure spans strategy, pre-construction and end-to-end project delivery, including low-carbon infrastructure, hydrogen technologies and retrofit, working within joint ventures, complex governance frameworks and multidisciplinary teams.
He co-founded Sheffield-based social enterprise SY Ecofit CIC as a way of driving decarbonisation and community wealth building across the region.