Commercial Executive – C&I Renewables (UK)

About Zestec

Zestec Renewable Energy specialises in the origination, development and management of fully funded commercial solar, battery storage and EV infrastructure solutions for businesses across the UK.

Over the last 15 years, our team has built an enviable reputation and successful track record in developing trusted relationships and partnerships across an extensive and exacting client base across. Being wholly owned within the Octopus Energy Group helps unlock incremental value through our ability to combine deep sector expertise with long term capital, to deliver scalable energy solutions.

We operate with clarity, pace and commercial focus and we are looking for individuals who want to play a meaningful role in that growth.

The Opportunity

Zestec Renewable Energy, part of the Octopus Energy Generation (OEGen) distributed energy platform, is actively deploying capital and scaling its presence across the UK commercial and industrial renewable infrastructure market.

As an independent power producer, we originate, develop, fund and manage commercial solar, battery energy storage and EV infrastructure solutions for complex, capital intensive environments.

Wholly owned by funds managed by OEGen, one of the largest commercial solar and onshore wind investors in Europe with a generating capacity of over 3GW, we operate with institutional backing, long term capital investment capability and a delegated mandate to deploy capital into high quality UK opportunities.

We are seeking a Sales Support Executive to sit at the centre of our commercial team, supporting our Business Development, Client Engagement and Marketing Teams to keep opportunities organised, accurate and moving.

This is not a pure administration role. You will have direct exposure to live client opportunities, proposals, tenders, CRM and pipeline activity, working across the commercial team to make sure the right information, actions and follow up happen at the right time.

Your mandate

• Support the Business Development, Client Engagement & Marketing teams across the full sales & marketing process.
• Keep CRM, pipeline data and opportunity records accurate, current and useful.
• Coordinate client meetings, actions, proposals, presentations and follow up activity.
• Support research, prospecting and qualification of target organisations and contacts.
• Help maintain pace and discipline across a growing commercial pipeline.

You will operate as a core part of the commercial team, working closely with Business Development, Client Engagement, Marketing and senior leadership. For the right person, the role provides broad exposure to complex B2B sales and a strong platform to develop a commercial career.

Core Responsibilities

1. Business development & client support
   • Provide day-to-day support to Business Development Managers and the Client Engagement Team across live opportunities.
   • Research target organisations, sectors and decision makers to support account planning and prospecting activity.
   • Support preparation of client meeting packs, presentations, proposals and other commercial documents.
   • Coordinate meetings and ensure actions, information requests and agreed next steps are captured and followed through.
   • Provide professional support for inbound enquiries and ensure they are directed, recorded and progressed promptly.
2. CRM, pipeline & sales administration
   • Maintain accurate and complete CRM records, including contacts, opportunity stages, values, next steps and activity.
   • Help ensure opportunities progress in line with Zestec’s agreed sales process and reporting standards.
   • Prepare regular pipeline, activity and performance information for commercial reviews.
   • Follow up outstanding actions, data requests and internal inputs to help keep opportunities moving.
   • Maintain organised records of proposals, NDAs, client information and other commercial documentation.
3. Proposals, tenders & commercial coordination
   • Coordinate inputs from technical, finance, legal, project delivery, asset management and marketing colleagues for proposals and client responses.
   • Support the preparation, formatting and quality checking of proposals, presentations, tender responses and supporting documents.
   • Maintain proposal and tender trackers, deadlines, version control and submission requirements.
   • Check that client facing material is accurate, complete and consistent before issue.
   • Support handover of qualified opportunities into feasibility and subsequent development stages.
4. Client engagement & commercial insight
   • Support structured follow up with prospects and clients, including meeting actions and information requests.
   • Help identify relevant market, sector and account information that can improve client engagement.
   • Work with Marketing and Client Engagement to support targeted campaigns and follow-up activity.
   • Build a practical understanding of Zestec’s PPA model, investment criteria and the commercial drivers behind client decisions.

About you

We are looking for someone bright, organised, commercially curious and ambitious. You may be a graduate looking for your first commercial role or have one to three years’ relevant experience. We are less interested in a particular degree subject or previous renewable energy experience than in the quality of your thinking, communication and approach.

We will be looking for clear evidence that you can:

• Organise yourself exceptionally well, manage competing priorities and maintain attention to detail.
• Communicate clearly and confidently, both in writing and in person.
• Take initiative, solve problems and follow things through without waiting to be chased.
• Work confidently with data, Microsoft Office and digital systems; CRM experience is useful but not essential.
• Exercise good judgement when dealing with clients, colleagues and commercially sensitive information.
• Research unfamiliar subjects, absorb information quickly and turn it into something useful.
• Take ownership of the quality of your work and respond positively when priorities change.

Previous renewable energy experience is not essential. What matters is evidence of high standards, curiosity, commercial awareness and the potential to learn quickly.

Development & Growth

You will work closely with experienced commercial colleagues and senior leadership, with exposure to live UK C&I renewable energy opportunities and institutional investment through OEGen. For someone who performs well, the role can develop into broader sales operations, client engagement or business development responsibilities as your commercial experience grows.

What you’ll love about us

Zestec has built an exciting and inclusive, engaging, performance culture where our team feels empowered. This means we welcome discussions around flexible working hours and a genuine work life balance. At Zestec we don’t just focus on what we do, but also how we do it.

We're looking for genuinely decent people who are candid, empathetic and have the right values. We not only say that people are our strongest asset; we are keen to see them develop. We know that every touch point with a client is key and the unique skills and perspectives people bring to the team are the driving force of our success. We promote equal opportunities for growth and development regardless of race, gender, religion, sexual orientation, age, disability, or socio-economic background. We believe strongly that teams are at their best when every member of the team feels safe to bring their whole self to work.

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