Client Case Study
Growth Strategy Leads B2B Commercial AI Adoption Renewable Energy

From Google-dependent to commercially led: how Spirit Energy built a plan for 10x growth

A Fractional CMO engagement that supported a young leader to transform a founder-led residential installer into a nationally scalable, B2B-ready growth machine.

Client
Spirit Energy
Sector
Renewable Energy & Clean Tech
Region
South East England
Engagement
Fractional CMO

Spirit Energy is a premium solar PV, battery storage and EV charging installer based in Reading, founded by Ian and Erica Charles in 2010. With over 6,000 installations completed, Tesla Premium Partner status (top-rated certified installer in the UK), MCS accreditation, and Which? Trusted Trader recognition, the business has built an exceptional reputation over 15 years — primarily serving residential customers across the South of England.

When Ian's son, Tok Charles, stepped into day-to-day leadership of the family business, he inherited something genuinely good: a trusted brand, a highly skilled in-house team, and a consistent flow of residential leads. But his ambitions went much further. He wanted to scale nationally, open a serious B2B commercial revenue stream, and grow the business substantially over five years. The question was how to build the strategy, the systems, and the team capability to make it happen.

Matthew Gaunt was brought in to provide the commercial marketing leadership and strategic architecture the business needed.

The Challenge

Doing well was not good enough for what Tok had in mind.

The residential business ran almost entirely on one organic channel and Google PPC. Rising costs, increasing competition, and the concentration risk of a single lead source made it vulnerable to the latest algorithm change. Residential quote volume had more than doubled — creating an operational challenge on a largely manual quoting process.

Commercial solar was generating some revenue — but opportunistically. Leads arrived by chance rather than by design. There was no defined sector strategy, no account-based targeting, no sales collateral built for commercial buyers, and no clear view of which sectors were worth pursuing. Commercial leads that did arrive frequently carried no source attribution, making it impossible to know what was working.

The in-house marketing team had built real capability — a well-regarded YouTube channel, an active content programme, and strong brand fundamentals. But the business was at an inflection point: scaling toward a dual-stream B2B model required a different kind of commercial architecture. Formalising sector strategy, scaling HubSpot's capabilities for both pipelines, and building repeatable systems for commercial lead generation were the clear priorities.

A five-year ambition to scale the business — with a commercial B2B stream at its core — required a fundamentally different approach to lead generation, sector targeting, CRM infrastructure, and marketing capability.

The Solution

Building the commercial marketing architecture from scratch.

Matthew Gaunt, Fractional CMO, joined Spirit Energy to build the commercial marketing architecture from scratch. The engagement spanned three interconnected workstreams.

01

A five-year growth plan and sector-specific B2B engine

A five-year plan was developed alongside the leadership team, setting out how Spirit Energy would evolve from predominantly residential to a genuinely dual-stream business — scaling residential nationally through a partner channel (Spirit Nationwide), while building a new B2B commercial revenue stream sector by sector toward a £15M commercial target. Six commercial sectors were assessed, scored, and prioritised using a structured evaluation framework, each with a full Go-to-Market plan including ICPs, qualifying scorecards, sector-specific messaging and objection-handling, channel strategies, and 90-day activation plans.

02

CRM rebuild and a repeatable marketing infrastructure

HubSpot was redesigned into a proper CRM and marketing automation platform capable of managing both residential and B2B commercial pipelines at scale: executive dashboards, automated email programmes, a multiple-persona nurture system, and a B2B pipeline segmented by sector and prospect type. A suite of prompt-based AI content production tools was also developed, covering SEO pages, email sequences, content calendars, LinkedIn content, case studies, lead magnets, and paid search.

03

AI policy and automation scoping

An AI Policy document was developed for Spirit Energy to adapt and implement — covering data protection principles, approved use cases, oversight requirements, and incident reporting. An AI-powered quote agent was also scoped and specified as a high-value future development, able to replace a multi-hour manual quoting process with an automated, fully branded proposal. Throughout, the in-house marketing lead was mentored and upskilled to own and run the new systems independently over time.

£15M
B2B commercial revenue target — built from a £1.5M–£2M base
6 sectors
assessed, scored, and GTM-ready for commercial activation
16 programmes
marketing automation sequences built for HubSpot deployment
The Results

The commercial B2B revenue stream is in its early phase — but the strategic clarity, infrastructure, and systems have fundamentally changed what Spirit Energy is capable of.

A growth plan built for scale, not just survival

A costed, phased five-year plan sets out how Spirit Energy moves from predominantly residential to a dual-stream model. Residential scales nationally through the Spirit Nationwide partner channel. Commercial can grow sector by sector toward a whole-company ambition of £30M+ by FY2030.

Six B2B sectors, scored and ready to activate

Each with a full Go-to-Market planning process, ICP, qualifying scorecard, sector messaging guide, and 90-day activation plan. The team can now move through sectors methodically, targeting the right businesses with the right message, rather than chasing opportunities reactively.

Infrastructure built to scale without agency dependency

HubSpot moves from underused to fully architected. Dashboards, automation programmes, a full B2B pipeline structure, and a four-persona nurture system are build-ready. A suite of AI content production tools gives the in-house team the capability to produce commercial-grade output independently and consistently.

A policy framework and roadmap for AI adoption

Spirit Energy moves from ad hoc AI use to a documented, governed approach — with an AI Policy providing a clear framework as a starting point, and a scoped quote automation system ready to develop when the time is right. Together they represent a practical path toward scale without proportional headcount growth.

Record results during the engagement period

During the engagement Spirit Energy achieved its highest ever weekly enquiry volume and its biggest sales month on record — up 10% on the previous best. The commercial infrastructure and strategy built during this period positions the business to sustain and build on that momentum as B2B activation moves into full deployment.

“When you grow up in a family business you know the product inside out. What I didn't have was a commercial marketing function that could match our ambitions. That's what Matthew built for us — strategy, infrastructure, and an in-house marketing team that knows how to use it.”
Tok Charles, MD, Spirit Energy
Led by: Matthew Gaunt — Fractional CMO  |  South East England  |  Renewable Energy & Clean Tech
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Case study delivered by Matthew Gaunt as Matthew Gaunt Associates, working through The Marketing Centre.