Something is wrong with the Benchmark

cedkessler · Posts: 17

Hi again,

We just found out that there is something wrong with the benchmark.
When producing the EPC, into the benchmark section,
It is written:
"A building of this type built to building regulations standards current at the date of issue of this certificate would have a rating:"
On the 2 EPCs attached, The Bo'ness EPC says that the rating would be a B with a value of 129, and the Grangemouth EPC says a B with a value of 120.
Also it does not seem correct that the Grangemouth design comes up with a figure that is suggesting that even if built at today's standards it would still only rate at a G.

The question is: what is correct, is it the value or the letter?

Many thanks,

Cedric

Andy Tindale · Posts: 1235 Location: Stroud

I would expect different benchmarks for different buildings. The benchmark is based on the CO2 emissions of the equivalent notional building that complies with Regulations Regs standard. Each building has it's own notional building and so it's own benchmark. The bemnchmark is used to determine the scale. So the value and the letter should both be right

Andy

Andy Tindale · Posts: 1235 Location: Stroud

When I run your Grangemouth model I see B as the rating for the buildng constructed to regs standard. See below.

Andy

cedkessler · Posts: 17

If the carbon dioxide emissions is 120Kg/m² and even though the building would be built to meet the building regulations standards, should not be the grade a G?

Many thanks.

Cedric

Andy Tindale · Posts: 1235 Location: Stroud

I see yes, it looks like a bug in SBEM - I'll pass it on to the SBEM developers at BRE.

Andy

adrien26 · Posts: 20

Andy,

Any news about BRE regarding this problem?
2 of our models are waiting for this to be issued.

Regards,

Adrien

Andy Tindale · Posts: 1235 Location: Stroud

For the record this issue is resolved by SBEM 3.2.b

Andy

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