NuTech Renewables Ltd works with a number of local Councils and government bodies to deliver Low Energy Houses.Below you will find links to current and previous examples of these type of developments
Outline of Project
NuTech is is the procress of building 35 houses with Fingal Country Council. One of these houses achieves an A2 rating (equivalent to a code level 5 rating for energy use and C02 emission) and features the following renewable energy systems
The other 34 houses have similar systems and achieve an A3 rating - they are not as well insulated and do not have as large a solar array as the A2 type house.
Further Details
Outline of Project
First pilot scheme offering state of the art ‘eco-houses’ to County Council in Ireland, featuring 22 houses situated on a site sloping to the South which was ideal for the utilisation of solar energy, A3 Rating
Summary
In summary then, in the design phase we had arrived at a design solution involving the following:
• appropriate levels of insulation to reduce heat loss through the fabric
• details to reduce the amount of linear thermal bridging in the construction
• a designed level of air tightness which could be achieved on site
• a specially designed HRV system which was utilised as the heating system of the house
• a specially designed air handling unit with an inbuilt control system that integrated the HRV system with the air solar collectors, the heat distribution system and the wood pellet boiler
Analysis of Project
The analysis of this overall system showed that this was a indeed a low energy house design saving of the order of 64% of the energy required for space and water heating including ventilation and lighting.The carbon savings, over the base case reference house were much higher due to both the reduction in energy demand but also to the use of the wood pellet stove on the energy supply side.
When analysed using the DEAP software from SEI the houses achieve an A3 rating.
This is actually very good when it is considered that wood pellet boilers will be some 10% less efficient than a condensing gas or oil boiler (based on calculations using the Gross calorific value for relative fuels).
From Wicklow County Council’s viewpoint they now have a system design that was repeatable on any site in Wicklow. This concluded the work done on the design phase.
Further Details
Contact NuTech Renewables Ltd for Further Details and EstimatesIf you are involved in a Social Housing Project and would like further information, please contact NuTech Renewables Ltd onTelephone: + 44 28 417 53031Email: info@nutechrenewables.com
