Sympergy Renewables Ltd

Sympergy Renewables Ltd is Mike Coleman’s renewable-energy company and the supplier of a large, unusually elaborate independent power system at Wortalleth West. Its work there ranges from a solar array and near-invisible photovoltaic film to a substantial backup flow battery whose location remains unexplained. The system makes the company part of the house’s central mystery: Coleman wants to discover what the battery powers, but his commercial curiosity leads him toward an unauthorized attempt to sell information about the property.

Identity and Services

Coleman presents Sympergy Renewables Ltd as a renewable-energy business serving Devon and Cornwall, with expertise in wind and solar power. The company’s card describes it as a local specialist, while Coleman emphasizes the reliability of its components and his own practice of giving Jack Harkness personal attention. He says Harkness arranged for him to have a key so that he could deal with glitches in the house’s particular renewables system. Coleman later invokes that standing arrangement as the reason he has come to inspect the property, although Fran Revell finds his claim of familiarity with Harkness implausible.

The company’s work for Harkness was not limited to a conventional solar installation. Coleman explains that Sympergy set up a large solar array in a rented field roughly half a mile inland from Wortalleth West. The house and garage block also had photovoltaic film fitted to their south-facing walls. The film was designed to be inconspicuous: Don Challenor later shows its clear plastic surface to Fran, who had not noticed it beneath the white render. Coleman describes the material as transparent, less than a millimetre thick, and based on oligomer cells rather than silicon.

The Wortalleth West Contract

The solar equipment was paired with a radical flow battery that Coleman says Sympergy supplied as backup for periods without sunshine. He describes the unit as a full rack of modules, approximately the height of a room, with a very large storage capacity. But when he returns to inspect the property, he cannot find it. His central question is not whether Harkness bought a functioning renewable-energy system, but where the conspicuous battery was installed and what it was powering.

Coleman regards the overall provision as excessive for the property. Don Challenor recognizes that Coleman is probing for information and does not tell him the suspicion he has already formed about the battery’s possible location. The house also contains signs of a concealed steel barrier that may lead to a chamber, but the available inspection cannot trace the independent cables, pipes, air supply, or phone line such a space would require. The relationship between that hidden architectural feature and Sympergy’s power equipment therefore remains unresolved: the oversized system invites questions, but the evidence does not establish what the battery served.

Secrecy and Coleman’s Proposal

Coleman says the commercial arrangements were made not directly with Harkness but through a man called Schmitz at Harkness’s headquarters in Switzerland. Coleman had communicated with Schmitz only by email. Schmitz then became unreachable, and Harkness’s human-resources department claimed never to have heard of him. Coleman also discovered that the original bills had not been paid by Harkness Pharmaceuticals; payment had been routed through a Swiss shell company. Maintenance money nevertheless continued to arrive, leaving Coleman with a paid service relationship but no clear explanation of who had arranged or funded the original work.

The missing house plans deepen his suspicions. Coleman believes Harkness arranged for them to disappear so that contractors such as himself could not discover the property’s purpose, though this is Coleman’s theory rather than an established fact. He also wonders whether Schmitz and the concealed payment route were part of a larger off-the-books operation. The secrecy surrounding the contract thus gives the company access to an unusual technical installation while denying its representative a straightforward account of the client, the payment structure, or the system’s intended use.

Coleman first approaches Don with an offer to introduce affluent prospective buyers to Wortalleth West. He then proposes that they search the house together, locate the battery, establish what it powers, and sell their findings to Quintagler Industries. He presents the information as a chance for both men to make substantial money. Don declines, citing the likely disapproval of Mrs Harkness or her lawyer, and keeps his own suspicions about the house to himself. Coleman’s proposal shows how the company’s technical access could be converted into leverage over its former customer; it is not evidence that Sympergy Renewables Ltd formally authorized the plan.

Later Inspection and Significance

When Coleman visits Wortalleth West again, he tells Fran that Harkness had made a commitment to battery-backed independent energy and that he has always provided personal attention when needed. He claims that the house is being put on the market and that Don had seemed receptive to a systems check. Fran hears the explanation cautiously, especially because Coleman has a key and speaks as if his long-standing familiarity settles the question of why he is there. Glenys Probert later makes clear that Coleman was sent away, correcting Don when he takes responsibility for doing so.

Sympergy Renewables Ltd’s role in the story is consequently both practical and evidentiary. Its installations provide the house with a hidden layer of infrastructure, while the absent battery, the inaccessible plans, and the shell-company payments turn a service contract into a line of inquiry. Coleman’s renewable-energy expertise enables him to recognize that the scale of the system is unusual; it does not give him reliable knowledge of the secret it may support. The company remains a supplier caught at the boundary between legitimate maintenance and a mystery its own representative is tempted to exploit.