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Solar Power

Volume 470: debated on Monday 21 January 2008

To ask the Secretary of State for Business, Enterprise and Regulatory Reform what assumptions were made about the cost of solar electricity generation in the UK MARKAL-macro model. (179335)

The full results of the MARKAL-macro modelling for the Energy White Paper and are available at: http://www.berr.gov.uk/files/file38979.pdf. The assumptions used for solar photovoltaic power in the MARKAL-macro modelling were provided by AEA Technology and are shown in the following table. The capacity value factors vary according to the season so figures for summer and winter days have been provided. The figures in the final column show the estimated final production cost after taking account of capital cost, capacity factor, operation and maintenance costs and equipment lifetime. The capital costs are assumed to decline over time as a result of technological learning.

Technology description

First year available

Capacity factor (percentage)

Cap cost (£/kW)

O and M (fix) (£/kW)

Life (years)

Costs (p/kWh)

Solar PV (summer day)

2000

19.5

5,750

58

20

42.9

Solar PV (summer day)

2050

19.5

1,386

14

20

10.3

Solar PV (winter day)

2000

7.0

5,750

58

20

119.5

Solar PV (winter day)

2050

7.0

1,386

14

20

28.8