Meet Us

Dr Gabriel Gallagher

BEng (Hons) PhD CEng FIMechE MCIBSE

Managing Director

Gabriel is a Chartered Engineer with over 24 years experience and practical application of engineering, commercial delivery and innovation in the decentralised renewable energy sector. Gabriel has a comprehensive background beginning with a Mechanical Engineering Apprenticeship with the MoD, going on to study Engineering at Cardiff University, working as researcher at the International Flame Research Foundation in the Netherlands and returning to Cardiff to study for his PhD in Heat Transfer and fluid Dynamics before founding Sustainable Energy Ltd. Gabriel has acted as principal consultant for the design and implementation of many of the UK's leading district heating, cooling and renewable power projects. Gabriel is a Fellow of the Institute of Mechanical Engineers and the Energy Institute and a Chartered Member of CIBSE.

Chrissy Woodman

BEng (Hons) CEng PgC AAT IMAPS MEI

Director

Chrissy is a Chartered Energy Engineer with 20 years experience of low carbon heat and power projects. Chrissy has held key delivery roles for the implementation of hundreds of renewable heating and power projects including development of technical specifications, procurement support, contract administration and Principal Designer role for large district heating projects. Chrissy also provides technical compliance support services for a number of blue chip companies including RHI, ROCs, CHPQA and Metering and Billing Regulations compliance. Chrissy has secured over £25m of grant funding for heat network construction projects and gained planning approval for a number of large renewable projects and regularly advises on permitting and licensing. She is an Incorporated Member of the Association for Project Safety.

Dr Penny Maxwell-Lyte

BEng (Hons) MSc PhD CEng MIMechE

Principal Engineer

Penny is a Chartered Mechanical Engineer and CIBSE Heat Network Consultant with a PhD that focused on pyrolosis and gasification for EfW and biomass. Penny has extensive knowledge in the technical and financial assessment of district heat networks and her skills and experience are key to Sustainable Energy's masterplanning and feasibility studies including detailed technology assessments and techno-economic modelling. Penny also has in depth knowledge of carbon intensity methodology and assessments and has developed numerous complex MS Excel tools for data analysis, technology sizing and economic assessments. Penny has overseen numerous district heating projects for local authorities and BEIS Heat Network Delivery Unit. She has extensive knowledge of complex energy demand modelling, technology assessments, technical and financial modelling, detailed reporting and presenting.

Omied Khakshour

BEng (Hons) MSc CEng DipNDEA MIMechE

Principal Engineer

Omied is a Chartered Mechanical Engineer, a CIBSE Heat Networks Consultant and Non-Domestic Energy Assessor (Level 3 and 4). Omied has 15 years experience of the detailed design of district heating schemes including full network modelling, detailed hydraulic systems schematics, functional controls specifications and equipment specification. Omied has undertaken technology assessments, sizing and specification for a range of energy centre technologies including biomass, heat pumps, CHP and solar and has provided design review and client engineer support for the construction and commissioning of many low carbon heat networks. Omied regularly undertakes early stage feasibility assessments for low carbon heat and power projects which includes site surveys, energy demand assessments, techno-economic modelling, concept design and business case reporting. Omied is also a STEM Ambassador and provides training and mentoring to a number of external organisations as well as SEL staff

Paul Woods

MA MSc CEng FEI FIMechE FCIBSE

Associate

Paul is a Chartered Mechanical and Energy Engineer specialising in district heating, CHP and sustainable energy for buildings. As Technical Director for two major consultancies he oversaw the design and construction of many CHP and district energy projects. He has also provided advice to Government both on the potential for district heating in the UK and on the implementation of the Energy Performance of Buildings Directive. More recently he has held senior roles within ENGIE, responsible for the strategic development of their six major district energy schemes and for the operation and development of the Queen Elizabeth Olympic Park and ExCel London district heating and cooling companies. Paul is also well known for his work as author of key industry guidance including CIBSE’s AM12 - CHP for Buildings and the ADE/CIBSE CP1 - Code of Practice for Heat Networks.

Matthew Crawford

MEng AMIChemE

Senior Consulting Engineer

Matt has a Masters degree in Chemical Engineering and is a CIBSE Heat Networks Consultant with extensive experience of design and specification of buried heat networks, low carbon energy centres, thermal substations for building connections and secondary/tertiary system upgrades. Matt has also delivered detailed techno-economic feasibility studies and commercialisation support for large scale heat networks including a number of heat pump projects for housing developments comprising mine water source, sewer source, air source and ambient loop networks.

Mari Roberts

MEng (Hons) AMEI

Senior Consulting Engineer

Mari has a first class honours MEng degree in Chemical Engineering with Energy & Environment from the University of Manchester. She has delivered numerous detailed techno-economic feasibility and detailed project development studies for a range of low carbon district heating schemes from social housing sites, to new garden village developments and large city centres. Mari has significant knowledge of low carbon technologies including mine, ground, open, and waste water source heat pumps, air source heat pumps, gas CHP, solar thermal, energy from waste plants, and waste heat sources. She is a highly experienced consultant engineer with excellent techno-economic modelling, technical reporting, and presenting skills.

Adrien Grubb

CEng MEng (Hons)

Senior Consulting Engineer

Adrien is a CIBSE Heat Networks Consultant with extensive experience of managing and delivering detailed techno-economic feasibility studies for large scale heat networks, and detailed project development and commercialisation including a 12MW town centre network. Adrien regularly provides technical and commercial support to heat network customers, including specification of connection plant and secondary/tertiary upgrades and negotiation of heat tariffs. Adrien has developed complex techno-economic modelling and technology sizing tools and developed outline and final business cases to secure funding for a number of high profile heat network projects.

Alexis Ciunek

BEng (Hons) MSc AMIMechE

Consulting Engineer

Alexis holds a BEng (Hons) degree in Environmental Engineering from Swansea University and an MSc in Sustainable Energy and Environment from Cardiff University. As a Consulting Engineer at SEL and a certified CIBSE Heat Networks Consultant, she brings extensive experience in energy demand modelling, technology appraisals, network route assessments, heat sales tariff assessments, RIBA Stage 2 designs, technology sizing, and techno-economic modelling. Alexis has worked on a variety of projects, ranging from city centre feasibility and DPD studies to projects for large-scale planned developments. Previous work has included studies for Wakefield City Council, North Tyneside Council, Bristol City Council, Cadogan Estates, and Lewisham Borough of London and planned developments at Filton Airfield and Welborne Garden Village. She excels in delivering key project components, including data analysis, detailed GIS outputs, business case assessments, and comprehensive report writing, showcasing her exceptional organisational skills and high level of attention to detail.

Sarah Philip

BEng (Hons) MSc AMIChemE

Consulting Engineer

Sarah holds a BEng in Chemical Engineering from University of Surrey, and an MSc in Advanced Chemical Engineering from Imperial College. She has been working on feasibility studies and design aspects for heat networks in Bedminster, Old Market, and Redcliffe, gaining experience in reviewing the compatibility of buildings connecting to heat networks, substation design and issuing associated tender documentation. Sarah also supports with reviewing external design submission compliance against our specification. Her areas of expertise include the design and specification of thermal substations, design compliance, heat exchanger sizing software and in-house hydraulic system sizing

Joseph Pitkethly

BEng (Hons) AMEI

Project Engineer

Joseph has a BEng in Energy Engineering from University of East Anglia. He has been working on a number of feasibility processes across the company, for proposed heat networks in Wakefield, Royal Borough of Greenwich, Carlisle, South Kilburn and Bedminster, gaining experience in a multitude of areas including; building heat demand modelling, techno-economic modelling and heat generation technology assessment. Joseph has used his experience on heat network projects to build his skills in 3D modelling of heat network energy centres and building substation connections, and generation of outputs required for tender scope of works documents. His areas of expertise include a wide range of experience using ArcGIS mapping software, engineering software including AutoCAD & Revit, and hydraulic modelling of heat networks using NetSim in a wide range of applications

Reece Dillion

MEng (Hons)

Junior Engineer

Reece graduated from University of Bath with an MEng (Hons) in Chemical Engineering. Reece is an engineer with Sustainable Energy who is assisting with the delivery of SEL’s technical designs and feasibility studies.

Ethan Kennedy

MEng (Hons) AMIChemE

Junior Engineer

Ethan holds a MEng (Hons) degree in Chemical Engineering from the University of Manchester. As a junior engineer at SEL, he has gained extensive experience in energy demand modelling, hydraulic modelling, technology appraisals, carbon assessments and techno-economic modelling. Ethan has supported various projects, ranging from decarbonisation roadmapping, urban and rural heat network feasibility, ambient network feasibility and DPD studies. He has contributed significantly to projects for Bristol City Council, Birmingham City Council, and Cardiff City Council. He has delivered key project components including, data analysis, hydraulic system sizing, business case development and project reports.

Eric Shen

BEng (Hons) MSc

Junior Engineer

Eric graduated from University of Glasgow with a BEng (Hons) in Mechanical Engineering, he subsequently went on to achieve an MSc in Sustainable Energy Systems from University of Edinburgh. As a junior engineer at SEL, he has experience in technical drawing, data analysis, generation of detailed technical reports and client presentations. With his profound passion for the renewable energy sector and a commitment to achieving high standards in both individual and team-based projects, Eric is dedicated in delivering practical and cost-effective solutions, supporting clients in their efforts towards decarbonisation.

Jesús Lancianese

MEng (Hons)

Graduate Engineer

Jesús graduated from Cardiff University with a MEng (Hons) in Mechanical Engineering. Jesús is an engineer with Sustainable Energy who is assisting with the delivery of SEL’s feasibility, design, and techno-economic modelling.

Ian Hegarty

BEng (Hons) MCIBSE

Senior Project Manager

Ian is a highly experienced and versatile Mechanical Engineer and CIBSE member with broad experience of designing, installing and commissioning large scale biomass, CHP and heat pump projects. Ian has a vast knowledge and practical experience of setting to work, commissioning, diagnostics and testing of complex heating systems including PLC programming and SCADA systems. Ian has overseen the connection, commissioning and activation of many thermal substations for building connections to heat networks including development of network controls and data collection strategy . Ian holds professional certificates of competency in a number of controls platforms including PLC, SCADA, Niagara / Tridium and OSS. Ian provides key commissioning support to SEL's heat network projects.

Denise Seager

Administration Manager

Denise is a key member of the team and manages all administrative activities of Sustainable Energy, including accounts receivable and payable, project costing, office management and payroll. Denise has over twenty years experience of finance and accounting and has excellent management and organisational skills