Meet the Team

Steve joined the BioticNRG Board in 2022 and is a member of the Palisade Real Assets Board of Directors and is responsible for the day to day running of the business.

Stephen has over 20 years’ experience in real assets and infrastructure. His experience encompasses transaction origination and execution, asset management and business development. Immediately prior to joining Palisade Real Assets, Stephen was a Senior Portfolio Manager in the Real Assets team at NSW Treasury Corporation (TCorp). Prior to TCorp and was Head of Strategic Investment Capital and Private Equity, Asia‑Pac/EMEA at Barings for three and a half years, and spent 14 years at Whitehelm Capital where he was Head of Europe and Americas and a member of the Investment and Management Committees. Prior to these roles, Stephen worked in research roles for ANZ Investments and the Australian Department of Finance and Administration.

Digby joined the Board of BioticNRG in August 2022 on the Company’s formation and is also Head of Investments at Palisades Real Assets. Digby has over 18 years’ experience originating and executing infrastructure and real asset investments in North America and Australia. His experience encompasses transaction origination and execution, asset management and business development.Prior to beginning his investment career Digby played professional rugby union with the Brumbies.

Digby has a Master and Bachelor of Commerce (accounting, finance & economics) from the University of Sydney and a graduate diploma of Applied Finance and Investment from FINSIA.

Darren has over 29 years of experience in renewables development and is one of the founding directors of EMSL and joined the BioticNRG Board in 2022. During his time at Eco2, Darren oversaw the delivery of over 280MW of projects across wind, landfill gas and biomass projects with total funding in excess of £1 billion. In a previous role at Energy Power Resources, Darren oversaw the development of biomass and waste to energy projects in the UK, the Netherlands and the US. Prior to these roles, Darren worked as an engineer, project managing renewable energy projects at UK utility SWALEC plc. Darren is also Chair of industry body, Biomass UK.

Darren holds a Bachelor of Electrical, Electronic and Communications Engineering Technology / Technician from Swansea University.

Thomas joined BioticNRG as a Director in 2022, focusing on the delivery of the bioenergy strategy. Thomas’ experience extends across all stage of anaerobic digestion plant development from planning and design through installation and operations to operational optimisation and innovation. Prior to joining BioticNRG, Thomas developed, managed and operated the Bore Hill Farm Biodigestor known as Malaby Biogas Ltd, one of BioticNRG’s AD portfolio assets. Thomas is actively engaged in the industry currently holding various management and advisory board positions with the UK Anaerobic Digestion and Bioresources Association (ADBA) and the World Biogas Association (WBA) in addition to being a member of the Renewable Energy Association’s (REA) Green Gas Forum and Digestate Working Group, the International Energy Association’s Task 37 biogas group. He is a member of the Canadian Biogas Association (CBA), American Biogas Council (ABC) and the Global Methane Initiative (GMI).

Danielle is the newest member of the BioticNRG Board joining in February 2025. She has over 18 years’ experience in the financial management aspects including reporting for renewables projects and seeing projects through development, construction, operations to eventual exit. Danielle is a qualified accountant with ACCA and holds a Bachelor of Science (Psychology) at Cardiff University

Ed Bastow is CEO at BioticNRG Limited. Ed has 25 years’ experience in the waste industry, including the construction and operation of transfer stations, landfill sites, AD plants and composting sites. He has represented compost producers on WRAP/REA boards looking to increase the use of compost in agriculture. Ed is COTC qualified in landfill, composting, transfer, Anaerobic Digestion and biological treatment, has a degree in Civil Engineering and an MBA from Cranfield University. He is a Chartered Member of the Institute of Wastes Management and of the Society for the Environment. Spare time is for family, sailing and cycling.

Stefania joined the BioticNRG team in January 2026 as Head of Growth and became Managing Director in April 2026.

Stefania is a Chartered Chemical Engineer with 19 years of experience in the renewable energy sector and infrastructure. Her expertise spans bioenergy, including thermal and biogas assets, compressed natural gas refuelling, as well as solar and wind energy.

Stefania have been involved in portfolio-wide activities and as part of her previous role she served as the Chair of the Group Health and Safety Committee. Prior to joining BioticNRG she spent nearly 10 years at Foresight Group as Portfolio Director and portfolio lead for their largest fund, overseeing the Southern European portfolio as well as working on numerous overseas projects. Prior to Foresight Group she has worked as a technical and commercial consultant at Ricardo Energy & Environment, Fichtner Consulting Engineers and Atkins.

Stefania has a strong background in team management and leadership.

Nick joins BioticNRG at an important stage in our growth journey and brings more than 30 years of experience across healthcare, utilities and infrastructure-focused organisations.

His extensive leadership background includes CFO roles at The Doctors Laboratory, one of the UK's leading pathology service providers, as well as senior financial positions at OVO and EA Technology, which provides consulting services and devices to manage the LV transmission network.

As CFO, Nick will play a key role in supporting BioticNRG's long-term growth ambitions, working closely with the Board, investors and wider leadership team to strengthen the company's financial platform and support future expansion.

Nick is the Finance Director for BioticNRG and is responsible for all financial matters within the business and also provides financial support within the wider group. Nick is an accountant with over twenty years’ experience gained in the profession before transferring to commerce. Nick has fourteen years’ experience in the Waste Management and Recycling industry, including six years as Divisional Company Accountant for Waste Recycling Group, a FTSE 250 company with over 100 sites across the UK. Nick also worked as Finance Director for a Waste Management and Skip Hire business with 4 sites based in Cambridgeshire. Nick is a keen motoring enthusiast and particularly enjoys following the BTCC.

Hannah qualified as a lawyer in 1998 and worked in the City for 9 years for leading law firms Clifford Chance and Reed Smith, specialising in contract/commercial litigation and maritime law. She has an MA in Law from Cambridge University. Hannah joined Material Change August 2005 and has seen the company grow significantly in this time and transferred to the BioticNRG Team in 2025. Hannah provides legal advice to the Group and is involved with negotiations and contractual arrangements for the company. Hannah also oversees the HR Team and the Compliance and H&S teams. In her spare time, Hannah writes cookery books and was County Longbow Champion.

Wei joined BioticNRG in April 2025 as Chief of Staff, supporting the business across various corporatisation, operational enhancement and growth initiatives.

Before joining BioticNRG, Wei spent over five years as an Investment Manager at Queensland Investment Corporation in both Australia and on secondment to the UK. At QIC, Wei was responsible for origination, execution and asset management across Energy, Utilities and Digital infrastructure sectors.

Prior to QIC, Wei was an Associate in Hastings Funds Management’s Global Asset Management team, and gained experience as an Equities Research Analyst at Goldman Sachs covering ASX-listed Energy, Utilities and Infrastructure stocks. Wei commenced his career as an Energy Trader with Engie, and holds a Bachelor of Commerce and a Bachelor of Laws (Hons) from the University of Melbourne.

Wei is an avid badminton player and bakes a decent sourdough.

Sam Wicks is the Group AD Operations Manager for the BioticNRG Portfolio having joined the company in 2018. Sam has previously worked in the waste industry, with experience in MRF, MBT, Landfill and IVC. Since graduating from the University of Surrey with a BSc in Management, Sam has gained qualifications in Process Safety and Lean six sigma and an MBA. Sam manages the AD operations, with a primary focus on performance improvement, responsible for sustainability and Investor reporting.

In his spare time, Sam goes to the gym, enjoys sailing and being outside.

Jo Fitzpatrick has been a valued member of the team since 2006 and brings with her years of extensive experience in contract management, negotiation, business development, compliance and internal auditing. Jo is responsible for ensuring all our sites remain compliant under planning, permitting, PAS100 and 110, ISO 9001, ISO 14001 and CMS systems.

Guil joined the group in 2013 as the compost site Manager at Helmdon and then transferred to manage the Helmdon Anaerobic Digestion Plant during construction and commissioning, working closely with technical providers and is now our Technical Maintenance Manager. He ran the Helmdon AD plant until 2024 when it transferred into a group role, managing the maintenance operations at all of the BioticNRG portfolio sites. Guil also has many years’ experience working in agriculture both in the UK and overseas. Guil enjoys spending time with his family and friends and enjoys watching Rugby, playing golf and enjoys Fly Fishing.

Charles founded Material Change Limited in 2002 after leaving Bidwells as an equity partner. He continues to be involved in the business as a consultant primarily providing advice on agriculture and farming.