Caldora Consulting
Case studies

Heat networks, delivered.

Seaham Garden Village

Contracts for the UK's first large-scale mine water heat network linked to a mine water treatment scheme

Location
Seaham, County Durham
Partners
Durham County Council, Karbon Homes
Paul's role
Community Energy Director, Vital Energi

A £250 million garden village of 1,500 homes on the Durham coast, heated by warm water from former coal mines. Vital Energi was appointed to design, build and operate the heat network for 40 years.

What Paul did
  • —Led negotiation of the concession agreement with Durham County Council, Karbon Homes and other stakeholders
  • —Put in place the connection, adoption and lease agreements that bring the homes and energy centre into the network
  • —Contributed to the mine water offtake agreement that unlocks heat from the Dawdon mine water treatment scheme
Aerial masterplan of Seaham Garden Village
1,500
homes in the garden village
750
affordable homes heated in the first phase
40 years
design, build and operate concession

Brought the council, the Mining Remediation Authority, Karbon Homes, Taylor Wimpey and Miller Homes, and their legal teams, to agreement on a complex set of contracts, keeping the project on track.

Hepworth Place, Walthamstow

Winning and negotiating a 25-year ESCo contract for a new mixed-tenure community

Location
Walthamstow, London
Client
Vistry Group
Paul's role
Community Energy Director, Vital Energi

433 new homes, half of them affordable, around the historic Walthamstow Town Hall. Vistry Group needed an experienced ESCo to adopt the whole heat network, take on the risks of running it, and give residents affordable, low-carbon heat.

What Paul did
  • —Led Vital Energi's winning bid, built around an energy centre with air source heat pumps designed for the site
  • —Negotiated the 25-year ESCo contract with Vistry Group, with Vital Energi adopting the network and its operating risks
  • —Developed an affordable tariff structure, keeping residents' costs in line with alternative heating for the life of the contract, and a customer offer aligned with Heat Trust rules
Residents' courtyard at Hepworth Place, Walthamstow
Image courtesy of Vital Energi
25 years
ESCo contract
433
homes, half of them affordable
Low carbon
heat from air source heat pumps

Queen Elizabeth Olympic Park

Aligning one ESCo with several major Build to Rent and housing association customers

Location
Stratford, London
Customers
Get Living, L&Q, Manhattan Loft Corporation
Paul's role
Community Energy Director, East London Energy (ENGIE)

East London Energy supplies low-carbon heat and hot water across the Olympic Park. Paul was the strategic link between the ESCo and its major customers, each with different operating models and priorities.

What Paul did
  • —Planned customer engagement for new handovers, including Chobham Manor Phase 2 and Manhattan Loft Gardens, with clear tariffs, service standards and complaints routes
  • —Turned complex heat supply obligations into practical mobilisation plans for each customer
  • —Set KPIs for uptime, response times and metering accuracy, and prepared the business for regulation by auditing billing and mapping customer interfaces
Victory Park in East Village, Queen Elizabeth Olympic Park
3,000+
homes onboarded
99.8%+
service reliability

The Olympic Park ESCo has become a reference model for heat network delivery at scale.

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