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Micro Heat Networks

Kensa Heat Pumps have designed a ‘micro district’ ground array architecture that qualifies new build homes and retrofit homes for the non-Domestic RHI and enhances the efficiency of the ground source system.

 

The innovative micro district heat network system mitigates the additional upfront capital costs compared with traditional heating system options, and provides a long term return over 20 years.

RHI, SAP & Compliance: Ticking the boxes

Crucially, the micro ground source heat network approach is recognised by the Department for Business, Energy & Industrial Strategy (BEIS) and Ofgem as meeting the definitions of district heating, meaning new build installations are able to access generous payments for 20 years through the Non Domestic Renewable Heat Incentve (RHI).

With no need for a plant room, Kensa’s solution also overcomes the drawbacks of traditional “central plant” district heating systems. Efficiency is not compromised by heat loss in the distribution pipework and there is no need to meter and apportion energy bills between dwellings, thus avoiding the need to comply with Heat Network (Metering & Billing) Regulations 2014.

Kensa’s innovative micro ground source heat network approach (also known as district heating), allows developers to realise the full potential of ground source heat pumps in both new builds and retrofit properties.

Designed for groups of properties, Kensa’s micro ground source heat network provides each home with its own ground source heat pump, ensuring heating and hot water independence.

The “heat network” is created by linking multiple properties to a communal ground array, designed to deliver an efficient, reliable and durable source of heat for the life of the property.

 

Micro District numbered

Ground Source Micro Heat Networks: At a glance

1. RHI

According to the Department for Business, Energy & Industrial Strategy (BEIS), as few as two properties linked together with a common ground array are considered a heat network (or district) system, qualifying for the Non Domestic Renewable Heat Incentive (RHI).

2. Cost-effective

Drilling costs are reduced by allowing a smaller number of deeper boreholes.

3. Flexible

The ground collectors (boreholes, slinky trenches or pond mats) can be positioned flexibly across the site, as there is no specific requirement for a ground array within the curtilage of each plot. The ground source heat pumps also offer flexibility of location compared to flues or Air Source Heat Pump’s – they can for be located internally or externally.

4. Robust

Communal nature of the array enhances design robustness, reducing risk of the ground being exhausted and allowing “diversity” to be provided across the array.

5. Scalable

Can be applied to apartment blocks, sheltered housing, clusters of houses or bungalows.

6. Simple billing

No centralised billing; each property has its own energy bill meaning the system is exempt from Heat Network (Metering & Billing) Regulations 2014.

7. Controllable

Featuring an individual ground source heat pump in every property, each dwelling has absolute control over its energy costs.

8. Compatible

Works with radiators and underfloor heating.

9. Sustainable

A Kensa ground source heat pump provides 100% of the property’s heating and domestic hot water.

10. Planning exempt

Meets permitted development rights criteria.

Multiple occupancy dwellings

Kensa’s innovative heat network (district heating) approach can also be used on a larger scale, and when combined with Kensa’s Shoebox heat pump – the world’s smallest and quietest ground source heat pump – opens up a whole world of opportunities for social housing providers with high rise buildings and apartment blocks.

The Shoebox’s advantageous size and low noise output allows for the heat pump to be fitted inside the home without disturbing the tenant, negating any requirement for costly and inconvenient plant rooms, centralised heating systems or ugly and exposed units on the roof space or at ground level.

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