HERS Report showing our score of 9/10
We’ve just received our preliminary Home Energy Rating Report (HERS) from the Energy Efficiency and Conservation Authority and we’re very proud. Little Greenie gets 9/10 and as far as we know at this stage this is the best HERS rating given out so far in NZ. We’re looking into confirming this but it seems likely.
What does the HERS report mean? From the report:
The building rating is a measure of how well a home’s design, materials and solar orientation enable it to maintain a healthy and comfortable indoor temperature throughout the year.
The report also rates the house’s water heating performance:
The water heating rating is a measure of how energy efficient a home’s water heating system is.
Little Greenie received a rating of 10/10 and an indicative running cost of $41/year. That’s right $41 per year for all water heating costs!
We also get a list of Key Recommendations For Improvement:
- Reducing area of windows in lounge by 50% reduces heating load by approx. 60%
- Deleting skylights reduces cooling load
- Increasing thermal mass by increasing concrete topping from 50mm to 100mm reduces heating load by approx. 40%
Maybe some room for improvement then?
You’re welcome to view the full report.
Tags: ecohome, Energy Efficiency, little greenie