What RHI payment will I get ?

[Water Wheel]

What RHI payment will I get ?

What is the GSHP electicity meter for ?

In final stages of planning a new build with under floor heating and aground Source heat pump.

What RHI payments will I actually get ?

The theoretical figure from the Gov UK web site calculator (https://www.gov.uk/renewable-heat-incentive-calculator) makes it look very attractive, paying a big part of the installation costs spread over the next 7 years. £16,800 over 7 years.

If I put a log burner in is this a “Back up Heating” , am I then only paid on the meter reading on the heat pump, which could be very low. If this is the case the better the house I build the less they pay. What a disincentive.

 

[Mur Huwcun]

We did it on an existing house so didn’t have to have a meter which gives a better tariff going on historic heating and EPC performanc. Not sure how it works on a new build unfortunately but does sound like you describe. I do know someone who has an ASHP in an existing dwelling on a meter system as he was not occupying the house before and happened to mention that. Your installer should be able to guide you and assist or find another who can. Ours were very helpful and we would of never got everything so sorted without them

 

[chickens and wheat]

electric reading need to be reported, but this is for information only

 

[Still Farming]

Ofgem website will tell you all you want to know about rules, regs, tariffs and hoops you got to jump through plus the nice time scales they operate by possibly!

 

[Poncherello1976]

Be prepared for a delay in getting your application approved. Ours took 6 months, asking repeat questions which was very annoying. I was glad that our installers were dealing with the application as well. I have now put my meter readings in and I am now waiting for payment for 2 and a bit quarters. It will be nice when it comes in, I just wish it had not taken so long!

 

[Speedstar]

What RHI payment will I get ?

What is the GSHP electicity meter for ?

In final stages of planning a new build with under floor heating and aground Source heat pump.

What RHI payments will I actually get ?

The theoretical figure from the Gov UK web site calculator (https://www.gov.uk/renewable-heat-incentive-calculator) makes it look very attractive, paying a big part of the installation costs spread over the next 7 years. £16,800 over 7 years.

If I put a log burner in is this a “Back up Heating” , am I then only paid on the meter reading on the heat pump, which could be very low. If this is the case the better the house I build the less they pay. What a disincentive.

It is a very slow job getting money out of the RHI lot, you will not need any back up heating if you use lots of installation , more like you will need air con in hot weather

 

[S J H]

I was expecting £10k over 7 years, ending up with £4k, was a total waste of time, I think it cost £1k to make it rhi compatible.

 

[renewablejohn]

Why anyone needs heating in a new build I do not understand. Desiign your house to passive house standards and the back up woodstove becomes an unused focal point.

 

[Lakesdigger]

Why anyone needs heating in a new build I do not understand. Desiign your house to passive house standards and the back up woodstove becomes an unused focal point.

A lot higher build cost though which many people will not be able to afford at the time.

 

[Mur Huwcun]

Why anyone needs heating in a new build I do not understand. Desiign your house to passive house standards and the back up woodstove becomes an unused focal point.

How actually realistic is it though? I don’t know any one who has managed it yet. We have sh!t loads of insulation here, so and so rated windows and doors blah blah blah but once you get either an easterly wind or some cold wind snap it just finds its way in somehow. We are in an open location though but still below 1000 feet

 

[HatsOff]

A lot higher build cost though which many people will not be able to afford at the time.

It's not significantly higher (need to meet building regulations anyway, so looking at proper detailing and slightly thicker insulation than anything new or dramatic) and the saving in running costs will certainly pay for it in not much time. The only absolutely new bit of kit needed for a Passiv House might be a Mechanical Ventilation Heat Recovery unit, plus ducting, which is about £3k or so extra.

The bigger problem than cost is builder knowledge and quality control.

 

[Lakesdigger]

It's not significantly higher (need to meet building regulations anyway, so looking at proper detailing and slightly thicker insulation than anything new or dramatic) and the saving in running costs will certainly pay for it in not much time. The only absolutely new bit of kit needed for a Passiv House might be a Mechanical Ventilation Heat Recovery unit, plus ducting, which is about £3k or so extra.

The bigger problem than cost is builder knowledge and quality control.

Building regulations are a minimum standard, Passiv House goes way beyond and costs significantly more. There are some private builds which are built to a high standard and may not require much extra to upgrade to passiv but the majority would need significant extra cost.

 

[HatsOff]

Building regulations are a minimum standard, Passiv House goes way beyond and costs significantly more. There are some private builds which are built to a high standard and may not require much extra to upgrade to passiv but the majority would need significant extra cost.

It's really not a big increase in material cost, it's a misconception in the industry. For example, Building Regs require a wall u-value to be 0.18W/(m^2K), typical PassivHaus aims for between 0.1 and 0.15, so it's not a huge increase. You still need to pay for the scaffold, some level of insulation and for someone to install it, the extra over cost is slightly thicker insulation. And if you consider whole life cycle costs, the material costs at construction area are fraction of a fraction of the running costs when added up year after year after year.

Where builders stumble with PassivHaus is airtightness and passing the air exchange tests. This is a function of knowledge and QA.

 

[designanddetail]

To get airtightness the spray on 'Purple Passive' is a great product, will be a big player in the passivhaus game I think.

 

[Water Wheel]

To get airtightness the spray on 'Purple Passive' is a great product, will be a big player in the passivhaus game I think.

Can you plaster ontop of it?

If you use a paint on membrain like that to paint small areas such as chased in cut outs for wires, switches and socket, can you plaster on it after?
Another place it would work well if you can plaster over it is joist insets into walls

 

[AJ123]

I would agree with most of what’s been said, I scrimped when building the house as it was all coming in more than I wanted to pay. Will cost a fortune to improve it now. In the long view, it wasn’t much more at the time.
But that is with hindsight of very low interest rates, increasing energy bills and a greater understanding of renewables etc. And rising underlying asset values which always helps.