put them on top the hill thenEgbert, what do you mean by a waste of a resource? The trouble with wind turbines is that no one wants to see them so putting them on land is an uphill battle.
put them on top the hill thenEgbert, what do you mean by a waste of a resource? The trouble with wind turbines is that no one wants to see them so putting them on land is an uphill battle.
So is it a good thing felling every tree in sight?Wood is a crop, like straw. Yes it takes longer to grow but it’s part of the carbon cycle. Surely even with your mindset you can see that
I think rates can be set by local government now So for them it’s easy money.
now that we have to be carbon neutral but 2035 instead of 2050, the government needs to say yes to any renewable project possible if they are to have a vague hope of getting threre!
I can't agree with your heating engineer on that one. As an example using slightly pessimistic figures:what about the Electric it consumes, ?
for when I considered air source, my heating engineer advised too expensive on the electric it used,
That's all well & good but you have to calculate the additional set up cost above any alternative over it's lifetime & add that amount onto your yearly running costs to have a fair comparison!I can't agree with your heating engineer on that one. As an example using slightly pessimistic figures:
1kWh of electricity (at 17p/kWh) nets 3kWh of heating so you end up with 5.66p/kWh delivered heat.
1 litre of heating oil is 50p and gives 10kWh of heat. Boiler efficiency of 80% so you end up at 6.25p/kWh of delivered heat.
This is a simplification - you might have more expensive electricity or a more efficient boiler if you run it at a lower temperature. But my actual numbers for the year just gone is a COP of 4.2 (so 4.2kWh of heat for every 1kWh of electricity used) and was paying 15p/kWh so my real figure for last year was 3.57p/kWh delivered heat.
This next year won't be so good but I've got a 17p/kWh deal for 12 months, assuming they don't go bust.
Again, the caveat is if its a straight swap and using it as you would a gas or oil boiler, then it might not work. Also you can see the number above cannot compete with mains gas.
RHI makes that simple... Zero!That's all well & good but you have to calculate the additional set up cost above any alternative over it's lifetime & add that amount onto your yearly running costs to have a fair comparison!
So you are saying an air source heat pump is the same price as a gas or oil boiler when this RHI is taken into consideration after all your radiators have also been upsized to provide adequate heat?RHI makes that simple... Zero!
Yeah as I said earlier, I can't make a like for like comparison as we didn't have proper central heating beforehand. But two things... To get maximum efficiency from a condensing boiler, it should be run at a similar temperature to a heat pump, so radiators should be comparable if you want to get maximum out of your fuel. And in my experience the extra over cost of the heat pump vs a conventional boiler was only a few thousand.So you are saying an air source heat pump is the same price as a gas or oil boiler when this RHI is taken into consideration after all your radiators have also been upsized to provide adequate heat?
Average heat pump around £6,000 plus upgrading all your radiators. Average gas or oil boiler replacement £2,000.
This RHI must amount to a lot of money
I can't agree with your heating engineer on that one. As an example using slightly pessimistic figures:
1kWh of electricity (at 17p/kWh) nets 3kWh of heating so you end up with 5.66p/kWh delivered heat.
1 litre of heating oil is 50p and gives 10kWh of heat. Boiler efficiency of 80% so you end up at 6.25p/kWh of delivered heat.
This is a simplification - you might have more expensive electricity or a more efficient boiler if you run it at a lower temperature. But my actual numbers for the year just gone is a COP of 4.2 (so 4.2kWh of heat for every 1kWh of electricity used) and was paying 15p/kWh so my real figure for last year was 3.57p/kWh delivered heat.
This next year won't be so good but I've got a 17p/kWh deal for 12 months, assuming they don't go bust.
Again, the caveat is if its a straight swap and using it as you would a gas or oil boiler, then it might not work. Also you can see the number above cannot compete with mains gas.
Edit - just had a look and fuel oil is now 63p/litre round me.
can't agree with your heating engineer on that one. As an example using slightly pessimistic figures:
1kWh of electricity (at 17p/kWh) nets 3kWh of heating so you end up with 5.66p/kWh delivered heat.
Domestic RHI is running until March 2022.No RHI payment in normal household that I’m aware of,
Plus upgrade of pipe work to 22mm, cost of unit and installation.
Little change out of £12 k plus
It doesn’t add up financially viable,
Plus we don’t have gas available in the village, so I’ll stick to oil.
You're talking about a heat pump of some description.
So depending on solution that's £8K to £20K+ plus maintainance costs of £2K+ every 7-10 years plus another outlay of £30K+ for insulation.
And the efficiency of heat pumps goes down as the outside temperature goes lower. Eventually they either don't work or are worse than an electric heater.
Got to be GSHP to make the systems work well year round...You're talking about a heat pump of some description.
So depending on solution that's £8K to £20K+ plus maintainance costs of £2K+ every 7-10 years plus another outlay of £30K+ for insulation.
And the efficiency of heat pumps goes down as the outside temperature goes lower. Eventually they either don't work or are worse than an electric heater.
Got to be GSHP to make the systems work well year round...
My system is 10yo now. Not been cheap in some ways... Heat exchanger was costly, constantly blowing the sift start is a PITA, but still under warranty! PCB went after 4 years but swapped out as a warranty, as a bad batch.
But the +ve side is a 4 bedroom house heated and DHW year round for a reasonable price. COP is around 4 I believe over the time its been installed.
Those lighthouses are not bolted on to hollow nails hammered into the seabed - and all the mechanicals are easily accessibleand yet the light houses built in the 18th and 19th century are still viable
Nigh on impossible unless you can drill downwards, which might be fun in London.... as the drill goes through the Northern Line tunnel liner!!I think GSHP is gong to be a rarity in towns and cities.
TBH Nuclear seems as though it's the only option. I don't like it but it's becoming the only option.
and its not like the severn hasnt 00s miles of mud flats for wildlifeWhat do we want though, clean energy and climate,or wading birds in the estuaries?
Thing with tidal power is that we are thinking on much too small a scale - utterly pointless parking free standing turbines - what we need to be looking at is throwing a barrage across the sounds of Jura and Islayand its not like the severn hasnt 00s miles of mud flats for wildlife
Thinking BIG!Thing with tidal power is that we are thinking on much too small a scale - utterly pointless parking free standing turbines - what we need to be looking at is throwing a barrage across the sounds of Jura and Islay
I do not believe we have any gas turbine power stations in the UK - we have gas powered generation - which is not the same thing at allwhat is your point? turbines can be built at sea with no subsidy and produce electricity at sensible prices
They sell freely into the electricity market previously at around 5p per unit the same as I do and the gas turbines etc.
At present the market is on a high and prices have been up to 25p but have now settled back to around the 10p I think ( not looked for a few days as all mine are on long contracts.
Many of the gas generators receive a payment to turn off when the wind is blowing as do some of the Northern turbines. This though is often about imbalances in the National Grid which has insufficient capacity to handle it all