We completed the first main phase of works in 2012 and later returned to undertake further district heating works in 2019 which would facilitate the development's expansion.

Oaklands Phase 4 Development

We returned to the project after winning the contract to design, supply and install the district heating connections to the Oaklands Housing Development. This phase involved connecting a total of 40 flats, 26 house and a nearby dance studio.

Our team connected to the existing 125mm district heating network with a 100mm main and sub branch of 65mm district heating extension to feed the development. Branches were created to service each residential property and these were between 25mm and 50mm in diameter flexible plastic pre-insulated pipework and steel pre-insulated pipework. By combining a steel main with flexible branches we were able to create a cost effective solution which still performed optimally whilst also allowing the main house building contractor their works as programmed.

Virtual Energi were also responsible for the supply and installation of all Hydraulic Interface Units (HIU's). This is a particularly important step as if not correctly installed or maintained, HIU's can have a detrimental effect on the overall efficiency of the heat network.

In the residential flats we also designed, supplied and installed the riser and lateral pipework which carries hot water into the apartments. To complete the works package we pressure tested, flushed, insulated and commissioned all elements of the primary system.

Banchory Leisure Centre

As part of the planned expansion, Banchory Leisure Centre was connected to the same district heating scheme. We designed, supplied and installed an extension in 125mm pre-insulated primary pipework off the previously installed feed. Vital Energi also undertook all civil engineering works along a range of terrain which included private landscaped areas, live highways and other sites controlled by other principal contractors.

This required not only detailed planning and preparation, but also a comprehensive understanding of the other contractors needs so that we could work collaboratively to deliver the overall programme without delay.

Once the district heating mains from the building entry had been installed we then extended the 125mm pipework up to a mezzaine floor to connect to a 900kW plate heat exchanger skid which had been built by Vital Energi in our pre-fabrication workshop. We then commissioned the plate heat exchanger to ensure the correct levels of heat were provided.

Lochside Leys Phase 1

Our latest addition to the project is connecting the Lochside of Leys housing development. The work on this phase is still ongoing but will see us connect 56 homes for the developer Bancon Homes. We will be installing all below ground district heating pipework from the existing energy centre in a 200mm main with relative branches and sub-branches to directly feed all the plots as well as leaving the capability to extend this network in the future to a wider development.

This is as well as supplying and commissioning HIUs, providing the entire primary side energy connection for the development.