TTMC optimises HubSpot lead management to drive qualified appointments for Powervault.
Founded in 2014, Powervault is a pioneering British manufacturer of smart solar storage batteries for homes and businesses. Based in North London, Powervault helps people transform the way they use energy, reduce their carbon footprint, save money, and become more energy independent.
At the heart of the brand’s innovation is SMARTSTOR™, a proprietary AI optimisation software that automates energy storage and maximises savings. The company’s modular batteries are made in Britain, built to the highest safety standards, and supported by a UK-based customer service team, making Powervault a trusted name in intelligent, sustainable energy solutions.
Campaign objective and project background.
Powervault had recently implemented HubSpot to capture inbound leads from its website and online advertising campaigns. At this early stage, the internal team was finding it challenging to establish and maintain a systematic approach to lead management within the platform. They needed a specialist to help design an effective workflow and a structured process for qualifying early-stage leads, nurturing prospects through the pipeline and delivering a consistent stream of sales-ready opportunities to the sales team.
The Telemarketing Company (TTMC) had previously worked with Powervault on a targeted appointment-setting campaign to expand its network of approved installers across the UK. Following the success of that initiative and given TTMC’s proven lead management expertise and experience in the solar energy sector, Powervault saw them as the ideal partner to support this next phase of their growth.
Project execution
It was critical to launch the campaign quickly, as a growing backlog of leads was beginning to accumulate. With only a short window to get the programme up and running, TTMC quickly built a team and scheduled a briefing session with the client’s campaign management team.
The session covered Powervault’s brand and value proposition in depth, along with product features, competitive positioning, and lead qualification criteria. It was vital that agents were able to represent the brand authentically, ensuring every interaction reflected the company’s credibility and strong ethical values.
The priority was to map the workflow and identify each step in the process prior to campaign launch. TTMC’s remit was to evaluate each lead in the platform to determine their interest in adding battery storage to their home.
Leads would then be categorised into two groups:
Once a lead was qualified, TTMC would create a record in HubSpot, send a confirmation email to the prospect, including a pre-assessment survey. For shared leads, an installer would be assigned based on geographic proximity, and the relevant salesperson notified. Strict performance expectations would apply at each stage including:
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All incoming leads processed within 24 hours of enquiring (except over the weekend)
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All lead-shares followed up after 1 week of being put in touch with an installer.
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All backlog cleared within 2 weeks.
The briefing also covered the different customer persona that agents were likely to encounter. This would enable them to tailor conversations and highlight benefits based on each homeowner type, from environmentally conscious customers to tech-savvy early adopters. By understanding these differences, the team could position Powervault’s offer effectively, whether by emphasising cost savings, safety, environmental benefits, or ease of use.
As calling commenced, agents adopted a consultative approach, building rapport from the outset, actively listening to understand each prospect’s needs, and tailoring Powervault’s value proposition accordingly. Leads that were not yet ready to progress were carefully nurtured, ensuring ongoing engagement until they were either fully qualified or qualified out. To maintain momentum, TTMC also followed up with installers to confirm that all referred prospects had been contacted, ensuring each opportunity moved smoothly through the pipeline without unnecessary delays.
Regular performance reviews and feedback sessions between client and agency drove continuous improvement and kept the campaign aligned with its objectives. Call recordings were shared to strengthen the feedback loop and support coaching and quality control. This close collaboration effectively positioned TTMC as an extension of Powervault’s internal team, operating within the same platform, processes, and workflows. The structured, systematic approach ensured that every inbound lead was handled promptly and professionally, delivering a consistent flow of high-quality opportunities, an excellent customer experience, and full visibility within HubSpot for seamless tracking and conversion.
Results
Powervault has been highly impressed by TTMC’s responsiveness, flexibility, and authentic brand representation. Operating as a fully integrated extension of the client’s own team, TTMC engages seamlessly with the target audience, ensuring every interaction reflects the company’s values.
Through a structured lead management process and consistent nurturing, TTMC has maintained strong prospect engagement, creating a solid pipeline of high-quality appointments and ensuring no opportunities are missed. From the outset, clearly defined SLAs have been met, creating a positive customer experience and reinforcing Powervault’s reputation in the market.
TTMC has also designed and implemented a robust lead management framework within HubSpot, enabling efficient tracking, swift routing of qualified leads, and full visibility across the sales process. This streamlined approach has accelerated Powervault’s sales cycle, increased the likelihood of conversion, and ensured timely, responsive follow-up, protecting both customer experience and brand integrity.