The UK 2050 Calculator Web Flash Excel Wiki
Register or sign in
This is a wiki Anyone can contribute, therefore we don't vouch for its accuracy.


  1. Take the simplest approach first, then iterate.
  2. Use existing cost estimates, starting with those used by Markal.
  3. Display cost ranges to reflect uncertainty, rather than single cost estimates.
  4. Cost everything, but use wide ranges where existing information is poor.
  5. Focus on physical costs (kit, people) over opportunity costs (carbon, social welfare loss) or regulatory costs.
  6. Focus on costs, not prices (we don't worry about who pays and who profits).
  7. Present cash flows (e.g., don't amortise capital costs, or worry about starting 'stock')