Cost of transmitting 1 GW of heat 140 km

[dave andrews]

William, taking your 445/kW figure, and applying a 50% load factor, and assuming cost of capitals is 10% per year as a rule of thumb, that gives a capex of 0.1p/kWh heat delivered.

Is that about right.

 

Assuming prices have doubled since you did the calculation that means the cost is say 0.2p/kW. 

 

I think the price of gas is around 3p / kWh at NBP. so this is a tiny cost.

 

Kind regards

 

Dave A

On 13 April 2011 16:28, William Orchard <Wil...@orchardpartners.co.uk> wrote:

Ferrand,

Sum we did for 140km line Sizewell London.

£7000 per metre so £980,000,000.

Carrying capacity 2,200,000 kW

Cost per kW supply to London 445/kW capacity.

Cost to externally insulate hard to heat dwelling £2000 per kW of heat load reduction.

Cost to upgrade single glaze to double glaze £3000 per kW of heat load reduction.

Just sometimes low CO2 heat supply is better value than heat load reduction particularly as it decarbonises the domestic hot water and ventilation loads.

This sort of concept is very hard to grasp for people who have been brought up on the conservation mantra.

First law of course does the conservation of energy for you.

It’s the second law that is the problem and why we need to ditch energy ministers and appoint Exergy ministers.

William.

PS estimated cost per kW for piped heat to 3800 Edwardian houses with 24kW heat loads in Wimbledon £425 per kW

Cost per kW heat supply Roupell flats piping to flats £559 per kW.  Note higher cost per kW as lower heat load for flats.

W R H Orchard MA(Oxon) MBA CEng  FIMechE MCIBSE MIET FEI 

Managing Director

Orchard Partners London Ltd

9 Lansdowne Close

London SW20 8AS.

email  wil...@orchardpartners.co.uk

Tel +44(0)20-8296-8745 Fax +44(0)20-7060-3345

http://www.orchardpartners.co.uk/

 

From: ferrand [mailto:fer...@care4free.net]
Sent: 13 April 2011 14:58
To: combined-heat-and-power-cogene...@googlegroups.com
Cc: dave andrews; Claverton AB MAIN GROUP; nuclearener...@googlegroups.com; William Orchard
Subject: Re: district heating using nuclear power

 

Dave
I raised just this point with DECC recently, their response to me attached
best regards
Ferrand Stobart


On 13/04/2011 14:09, dave andrews wrote:

 

Dear all,

 

When William Orchard visited recently, he mentioned that he saw a potential in district heating from nuclear power. The link below presents an interesting recent study on the use of the Finnish nuclear power plant Loviisa for district heating of Helsinki.

 

http://www.google.com/url?sa=t&source=web&cd=2&ved=0CB0QFjAB&url=http%3A%2F%2Fnuclear-option.org%2Findex.php%2FCNS%2F2010%2Fpaper%2Fdownload%2F39%2F15&rct=j&q=district%20heating%20loviisa%20nuclear%20power%20plant&ei=zXqlTbCDPcT4OdaOzfsM&usg=AFQjCNFUk8NKumpv43E6lV_kY6DgwBw_vw&sig2=7-T6zvMXRGHoDruli4Yqlg&cad=rja

 

In the conclusions of the article the author (from the energy company Fortum) says that he believes that it is an economically viable option, but it requires cooperation between heat-producers in the region as well as the political will to be implemented.

 

Greetings,

 

Rory

 

--

Dave Andrews

K.E.N.T.
+ 44 (0)  755 265 9166

+ 31 (0)  631 926 885
+ 44 (0) 1225 8379781