Holding Company

Powering the UK's energy transition through strategic investment.

Sustain UK Holdings is the parent company of a diversified group of businesses operating across solar generation, energy solutions, and utility services throughout the United Kingdom.

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Building energy assets in the UK since 2009.

The Sustain Group started building energy assets in the UK in 2009. Sustain UK Holdings Limited provides strategic oversight, capital allocation and governance for our growing portfolio of operating companies.

We build and invest in operational companies, then expand them. From residential solar and commercial rooftop systems to battery storage and utility-scale operations, our group companies deliver end-to-end clean energy infrastructure across the UK.

With a disciplined approach to capital deployment and a long-term ownership mindset, we work closely with management teams to build durable, profitable companies that matter.

2009

Building UK Energy Assets

6

Group Companies

HR5

Herefordshire HQ

UK

Nationwide Reach

Our portfolio of operating and asset companies.

Four operating companies and two asset companies, operating with autonomy under group-level governance and strategic capital.

Operating Company

Sustain Commercial Solar Limited

Large-scale commercial solar, rooftop and ground-mount projects for industrial and corporate clients.

sustaincommercialsolar.com ↗
Operating Company

Sustain Energy Solutions Limited

Operations, maintenance, asset management and billing services for energy infrastructure owners.

Operating Company

Residential Solar Limited

Specialist residential solar financing and installation services for homeowners nationwide.

residentialsolarltd.com ↗
Asset Company

Solarplicity UK Holdings

Legacy energy supply and renewable energy services platform with established customer base.

Asset Company

Powercell UK Holdings Limited

Parent company for the Community Energy Scheme and Civic Energy Partnership portfolio.

Experienced operators and investors.

Our board brings together deep sector expertise in renewable energy, corporate finance and UK infrastructure development.

DE

David Elbourne

Chief Executive Officer

Founder and majority shareholder. Drives group strategy, capital allocation and major project development across the portfolio.

JC

Julie Clare

Chief Financial Officer

Oversees group financial planning, reporting, treasury and risk management for all holding and operating companies.

Don’t Just Find a Job. Build a Career.

At Sustain UK Holdings, we’re creating the workforce that will deliver the UK’s net-zero future.

Whether you’re starting your journey through a JIB electrical apprenticeship, entering the industry as a graduate engineer, or looking to develop new technical skills, we’ll provide the training, support and opportunities you need to succeed.

Because we believe the best talent isn’t bought. It’s developed.

Solar PV | Battery Storage | Asset Management
Your future starts here.

Explore Apprenticeships Graduate Programme
An apprentice electrician installing solar panels on a rooftop with a mentor
8+
Companies in the Sustain group
4,700+
Residential BESS units under rollout
JIB/ECS
Registered apprenticeship pathway
100%
Funded training for every apprentice
JIB Registered ECS Card Holders NICEIC Approved MCS Certified TrustMark Registered Work at Height Trained NET Endorsed
Why Join Us

A team that trains, qualifies and promotes from within

Sustain UK Holdings is a group of operating companies spanning residential and commercial solar, battery storage, operations and maintenance, and community energy. When you join us, you join a group with a pipeline of work - not a single project.

Cap and tick - every qualification funded

Every Qualification Funded

Apprenticeship training, college day-release, ECS assessments and industry accreditation are paid for by us. You earn while you learn.

Path to sunburst - real progression

Real Progression

Our apprentices become improvers, improvers become installation engineers, engineers become team leaders and surveyors. Your pathway is mapped from day one.

Leaf and sun rays - work that matters

Work That Matters

Community energy schemes, school and council rooftops, and the UK's largest residential battery rollout. The work you do cuts bills and carbon for real communities.

Toolbox and wrench - modern equipment

Modern Equipment

Quality tooling, branded vans, proper PPE and the latest battery and monitoring platforms - we do not cut corners on kit or safety.

Mentor and apprentice - mentors not just managers

Mentors, Not Just Managers

Every apprentice and graduate is paired with an experienced engineer. Toolbox talks, structured reviews and time built into the programme to pass assessments.

Calendar with rising bars - stability and scale

Stability & Scale

Multi-year rollouts and framework agreements mean stable work, predictable programmes and a future you can plan a mortgage around.

Early Careers

Apprenticeships & trainee pathways

We are a JIB-registered company working with local FE colleges and the National Electrotechnical Training (NET) programme. Our structured entry routes are open to school leavers, career changers and people returning to work.

Entry Route 1

Electrical Apprenticeship (JIB / ECS)

Our flagship pathway. You work on live solar PV and BESS installations across the UK with a named mentor, and complete your qualification through college day-release.

  • Installation Electrician / Domestic Electrician apprenticeship standard
  • ECS card registration and assessments funded
  • AM2S end-point assessment preparation and support
  • Solar PV, battery storage and EV charging specialisms in the final year
  • JIB-registered terms, including paid overtime and sick pay
Entry Route 2

Solar Installer Improver

For people with hands-on experience - roofers, builders, MOT technicians, ex-forces - who want to qualify as solar PV and BESS installers.

  • Work alongside qualified electricians as a second pair of hands
  • Working at height, manual handling and first-aid training in week one
  • Route to PV and battery-specific qualifications within 12-18 months
  • Full-time, permanent, from day one
Entry Route 3

Business, Finance & Admin Apprenticeships

Not everyone belongs on a roof. Our office-based apprenticeships cover finance, customer service, surveying support and project administration.

  • Level 3 Assistant Accountant and business administration standards
  • Exposure to real projects, billing systems and asset management
  • Study support and exam leave
  • Permanent roles with a defined progression route at the end
What You Get

The Apprentice Package

Above National Apprentice Wage from day one, reviewed every six months against your competency matrix.

  • All college fees, tools, PPE and devices provided
  • Travel paid for college and between sites
  • 22 days holiday plus bank holidays, rising with service
  • Company pension and wellbeing support
  • A guaranteed permanent role review on completion
Graduates & Postgraduates

The Graduate Energy Programme

Our graduate and postgraduate intake sits at the centre of the group's growth: designing installations, modelling energy and revenue, and building the systems that keep a multi-million-pound rollout running.

A graduate engineer inspecting battery energy storage containers

Where You Will Work

Rotations across three disciplines, with a permanent home chosen at the end of year one.

  • Design Engineering: PV array and BESS system design, G98/G99 applications, structural and electrical surveying
  • Energy & Commercial Analytics: generation modelling, tariff analysis, PPA and funding models
  • Operations & Asset Management: monitoring platforms, O&M programmes, performance analytics

Who We Are Looking For

Curious, numerate and practical. We hire for aptitude and attitude, not a particular university.

  • Degree or postgraduate qualification in engineering, physics, energy, data, finance or a related field
  • Equivalent aptitude considered - if you can evidence the skills, apply
  • Structured CPD with chartered engineer (CEng / IET) support routes
  • Mentoring from our Technical Director and senior design team
  • Competitive salary, annual review and bonus participation
Training & Development

How we develop every person in the team

Everyone at Sustain - from apprentice to director - works to a competency matrix with structured training, ongoing CPD and funded accreditation. It is how we keep quality high, sites safe and customers happy.

1

Induction & Core Competency

Safety procedures, safeguarding, data protection, customer service and community-engagement protocols - the foundations of how we work on occupied homes and live sites.

2

Technical Training

Solar PV, battery storage, electrical safety, working at height, MCS requirements and domestic retrofit - built into every installation role's competency matrix.

3

Accreditation Support

We fund and support key personnel through NICEIC, MCS, Retrofit Installer and Retrofit Coordinator qualifications, plus ECS and JIB grading progression.

4

Continuous Professional Development

Ongoing upskilling in renewable technologies, energy efficiency measures and industry best practice, with supplier-led training from our manufacturing partners.

Life at Sustain

Local people, local work, genuine teamwork

We recruit locally first and build our teams in the communities where we work. It is better for our customers, better for the local economy, and it makes for crews that know each other and look out for each other.

Site team gathered for a morning toolbox talk beside a van loaded with solar equipment

How We Recruit

  • Local employment first - we recruit from the areas we serve
  • Partnerships with local colleges, job centres, skills hubs and community organisations
  • Work placements and site-experience days for young people and unemployed residents
  • Fully inclusive recruitment - we actively encourage applications from under-represented groups
  • Transparent, accessible selection with feedback for every applicant

How We Look After People

  • Structured appraisals and six-monthly pay reviews
  • Recognised apprenticeship terms under the JIB handbook
  • Company pension, wellbeing support and employee assistance
  • Progression routes mapped for every role, reviewed annually
  • A zero-tolerance approach to safety shortcuts - everyone goes home safe
Current Roles

Open positions across the group

We are recruiting now for the next phase of our residential BESS rollout and commercial pipeline. If a role is not listed, send us your CV anyway - we grow fast and good people create their own position.

Electrical Apprentices (Multiple Positions)

Level 3 Installation Electrician - JIB / ECS pathway - all training funded
Hertfordshire & Home Counties
Full-time
Apply

Solar Installer Improvers

Roofer or hands-on background - route to PV/BESS qualification in 12-18 months
Nationwide
Full-time
Apply

Graduate Energy Programme 2027

Design Engineering / Energy Analytics / Operations - degree or postgraduate
Cheshunt & Site-Based
Full-time
Apply

Experienced Electricians (Solar PV / BESS)

18th Edition, ECS card - PV and battery experience preferred, training given
Nationwide
Full-time
Apply

Business & Finance Apprentices

Level 3 administration and assistant accountant pathways
Cheshunt
Full-time
Apply
Apply

Ready to build your future with us?

Send your CV and a few lines about what you want to achieve. Tell us where you are starting from - we care about where you can get to.

careers@sustainukholdings.com

Or call the team on 0333 880 0891 (Mon-Fri, 9am-5pm)

Let's discuss how we can work together.

For investment enquiries, partnership opportunities or press, please reach out directly.

Registered Office

61 Bridge Street
Kington
Herefordshire, HR5 3DJ

Sustain UK Holdings Limited is a private limited company registered in England & Wales.
Company number: 11234711.
Registered office: 61 Bridge Street, Kington, Herefordshire HR5 3DJ.