# Review the ground-source option before committing Lesson 1 of [Ground-source projects and heat pump service oversight](https://heatpumppros.fyi/academy/ground-source-and-service-oversight.md), 12 minutes. Ground-source heat pump procurement includes questions about the ground connection as well as the equipment serving the building. HMRC describes ground-source heat pumps as transferring energy from heat stored in the earth. Your job as a buyer is to ask what physical system is proposed, what evidence supports it and who will resolve local requirements. This lesson does not teach ground-loop design, drilling or environmental permitting practice. ## Get an unambiguous system description Ask the designer whether the proposed arrangement is open loop or closed loop and request a plain description with a site layout. The Environment Agency describes a closed-loop system as fully sealed, taking no environmental water and discharging no water or fluids into the environment. Its sealed boreholes or pipework have no direct groundwater connection. An open-loop system pumps groundwater or surface water and reintroduces it after using it for heating or cooling. These are different ways of interacting with the environment. Record which has actually been proposed instead of using the phrase ground source as though it specified everything. Ask which ground works are included, where they are proposed and which professional is responsible for the design. Keep unanswered site questions visible in your decision record. ## Separate project permissions The cited Environment Agency guidance applies to England. It explains that a new closed-loop system may need an environmental permit unless an applicable route allows it without one. It also describes possible consents, licences and permits for open-loop systems. Do not infer that a sealed system is automatically exempt or that a planning decision covers every environmental requirement. Ask the provider to identify the authority and current route relevant to your project. Outside England, use the equivalent local environmental authority. Within England, check the full current guidance and seek clarification from the Environment Agency when the route is uncertain. This course deliberately does not teach numerical exemption thresholds or offer a permit determination for a particular property. ## Understand open-loop evidence requests The open-loop guidance identifies groundwater investigation consent, abstraction licensing, discharge permissions and possible permissions for work near watercourses as matters that may apply. Which ones are needed depends on the proposal and applicable conditions. Ask the specialist to show which questions have been checked, the evidence supplied and the decisions still outstanding. Do not interpret this list as saying every project needs every permission. For an option comparison, distinguish an idea that still needs investigation from an option with supporting site evidence. Ask what further assessment could change the recommended scope or timetable. This is a procurement question about uncertainty, not a request for the buyer to perform groundwater testing or decide safe operating conditions. ## Keep technical and commercial decisions connected The CMA recommends a clear written description of the products and work, prices and responsibilities. Apply those headings to the ground works as well as the indoor heating work. Ask who coordinates each specialist, what the quotation excludes and how a changed site finding would be handled. A complete equipment price alone does not explain the full ground-source project. Before committing, ask for a record of the chosen option, reasons, unresolved investigations and approvals, and the person responsible for each next step. Facility buyers can use that record for internal review; homeowners can use it to ask for an independent explanation. Neither use replaces professional design or regulator approval. Completion of the academy course is evidence of learning only and does not authorise the learner to sign off a ground-source installation. ## Sources - https://www.gov.uk/hmrc-internal-manuals/vat-energy-saving-materials-and-grant-funded-heating-supplies/vensav3080 - https://www.gov.uk/guidance/closed-loop-ground-source-heating-and-cooling-systems-when-you-need-a-permit - https://www.gov.uk/guidance/open-loop-heat-pump-systems-permits-consents-and-licences - https://www.gov.uk/government/publications/buying-green-heating-and-insulation-products-consumer-guide/buying-green-heating-and-insulation-products-a-consumer-guide Also on the [web page](https://heatpumppros.fyi/academy/ground-source-and-service-oversight/review-ground-source-options).