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Title: II.a Nuclear power costs
Content: The cost of building and running a nuclear power station complex, including:
* Nuclear power plant - Please click on: Summary of Nuclear Power cost data
* Uranium enrichment - Please click on: Summary of Uranium Enrichment & Disposal cost data
* Uranium imports - Please click on: Summary of Imported Uranium cost data
* Uranium disposal - Please click on: Summary of Uranium Enrichment & Disposal cost data
Decomissioning plant costs are assumed to be captured as a surcharge on teh cost of uranium enrichment and disposal costs {*Michael* have I got this right?}. Please see annex E for the estimated reactor decommissioning costs in DECC's recent consultation [http://www.decc.gov.uk/assets/decc/consultations/nuclearfixedunitprice/1_20100324145948_e_@@_consultationonfixedunitpricemethodologyandupdatedcostestimates.pdf]
h1 Costs Methodology
h2 Methodology used
The user defines the number of nuclear power plants. Once the trajectory is set by the user, the number of plants to be built are defined. Investment costs are a function of new build and operating cost are a function of the number of plants operating within that time period.
Please see 2050 Methodology for a full description of the costs approach in the Calculator.
h2 Methodology issues and uncertainty
* We assume the current nuclear fleet retires by 2035 but we do not include the possibility of extending the lifetimes of the plants. Could the plants realistically have their lifetimes extended and what will this cost?
* Should we split out further the costs of uranium enrichment, waste and plant decommissioning?
h1 Technical Assumptions
* Lifetime = 60 years therefore no new build retirement before 2050 for new build from 2020, current legacy retires by 2035
* Efficiency = 36% thermal efficiency, 10% own use as a percentage of supplied electricity therefore 32.7% efficiency from uranium in to electricity supplied to the grid
* Load factor = 60-80%
* Input Fuel = Uranium
h1 Questions to Stakeholders
* The cost of uranium disposal only occurs within the time period 2007-2050 and the cost of storage in those years beyond 2050 isn't accounted for. Should we include this residual cost or is it immaterial and/or captured within the waste cost as a function of uranium used?
* Should we include decommissioning costs or are they captured within waste costs? Check with Richard Marriott in OND. Proven numbers are about US$500million for a 1GW PWR (a real US example) which when expressed as £/MWh is a small number.
h2 Built plant estimates
The headline figure often talked about by the leading UK developers (EdF and Horizon) and the UK government is £10bn for a twin or triple unit plant with a capacity of about 3GW net. This is equivalent to about £3300/kW (€3800/kW and $4900/kW). UAE’s price for Kepco’s APR concluded in late 2009 (about £2400 (~$3,600).[MottMac11]
Both of these real world estimates fall within the range above.
h1 General comments
Please use this space to make any general comments. Please add your name when commenting.
h1 Admin
If you have any queries on the nuclear costs, please contact the 2050 Costs team lead - Michael Clark.
Working-level analyst - Henry Shennan, Anthony Moulds (DECC)
Senior analyst - Sam Thomas
Category: Sector by sector cost assumptions
User: Tom Counsell
Picture updated at:
Signed off by:
Signed off at:
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Title: II.a Nuclear power costs Content: The cost of building and running a nuclear power station complex, including: * Nuclear power plant - Please click on: Summary of Nuclear Power cost data * Uranium enrichment - Please click on: Summary of Uranium Enrichment & Disposal cost data * Uranium imports - Please click on: Summary of Imported Uranium cost data * Uranium disposal - Please click on: Summary of Uranium Enrichment & Disposal cost data Decomissioning plant costs are assumed to be captured as a surcharge on teh cost of uranium enrichment and disposal costs. Please see annex E for the estimated reactor decommissioning costs in DECC's recent consultation [http://www.decc.gov.uk/assets/decc/consultations/nuclearfixedunitprice/1_20100324145948_e_@@_consultationonfixedunitpricemethodologyandupdatedcostestimates.pdf] h1 Costs Methodology h2 Methodology used The user defines the number of nuclear power plants. Once the trajectory is set by the user, the number of plants to be built are defined. Investment costs are a function of new build and operating cost are a function of the number of plants operating within that time period. Please see 2050 Methodology for a full description of the costs approach in the Calculator. h2 Methodology issues and uncertainty * We assume the current nuclear fleet retires by 2035 but we do not include the possibility of extending the lifetimes of the plants. Could the plants realistically have their lifetimes extended and what will this cost? * Should we split out further the costs of uranium enrichment, waste and plant decommissioning? h1 Technical Assumptions * Lifetime = 60 years therefore no new build retirement before 2050 for new build from 2020, current legacy retires by 2035 * Efficiency = 36% thermal efficiency, 10% own use as a percentage of supplied electricity therefore 32.7% efficiency from uranium in to electricity supplied to the grid * Load factor = 60-80% * Input Fuel = Uranium h1 Questions to Stakeholders * The cost of uranium disposal only occurs within the time period 2007-2050 and the cost of storage in those years beyond 2050 isn't accounted for. Should we include this residual cost or is it immaterial and/or captured within the waste cost as a function of uranium used? * Should we include decommissioning costs or are they captured within waste costs? Check with Richard Marriott in OND. Proven numbers are about US$500million for a 1GW PWR (a real US example) which when expressed as £/MWh is a small number. h2 Built plant estimates The headline figure often talked about by the leading UK developers (EdF and Horizon) and the UK government is £10bn for a twin or triple unit plant with a capacity of about 3GW net. This is equivalent to about £3300/kW (€3800/kW and $4900/kW). UAE’s price for Kepco’s APR concluded in late 2009 (about £2400 (~$3,600).[MottMac11] Both of these real world estimates fall within the range above. h1 General comments Please use this space to make any general comments. Please add your name when commenting. User: Tom Counsell Picture updated at: Signed off by: Signed off at: |