Glasnevin, Co. Dublin

From Unfit to EnerPHit: Traditional Home Transformation

Follow the journey and see how this traditional 1910’s semi detached house located in Glasnevin, Co. Dublin, will be upgraded to the EnerPHit Standard.

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Upgrading to the Highest Gold Standard

EnerPHit is the Passive House Institute’s retrofit standard, designed specifically for upgrading existing buildings to exceptional energy-efficiency levels. It helps buildings use minimal energy and stay comfortable inside.

This house is located in Glasnevin, Dublin, build in the 1910's, and with a pre-works BER of F.

This house will undergo massive transformation, from an F-Rating to an A1-Rating with KORE Retrofit, under SEAI’s Traditional Homes Pilot Scheme & One Stop Shop Grant Scheme.

KORE Retrofit provide full project management services, design solutions, technical expertise, quality control services and full grant administration.

House Upgrade Details

Existing Building BER F (405 kWh/m2/yr) with a proposed BER of A1 (20.94 kWh/m2/yr).

Treated Floor Area 201M2
Wall Insulation
Floor Insulation
Roof Insulation
Triple Glazed Windows & Doors
Mechanical Heat Recovery Ventilation
Air-to-Water Heat Pump
Solar PV System
Airtightness

EnerPHit Upgrade in Numbers

Heat Loss Form Factor 2.61
Heating Demand 21.1 kWh/m2/yr
Heating Load 13 Watts
U-Values Floor Walls and Roof – All less than 0.15 w/m2k
Thermal Bridging 405m Linear Meters (Empire State Building 381m)
Overheating Percentage 9% (788 hours) of the year above 25 Degrees
Reduced to 1% with Passive Cooling Strategy
Expected Heating Cost €488 per year
Expected DHW Cost €585 per year
Expected Electric Cost €1,512 per year (4kWp Solar PV expected generation 3,200kWh)
Usable Generation ~50% = Expected Electric Cost of €936 per year
Total Energy Cost €2,585 per year (€2,009 with Solar)
Projected Costs Savings Annually ~ €6,100.00 so (€1,917.00 @B2)
Projected Saving over mortgage period (30 Years) ~ €183,000.00 = (€57,518.00)