As we develop our own energy decision-support tools, we are looking at what currently exists so that it can help us and others.  We've aggregated various tools below in this draft page, grouped under different headings:

Carbon footprint calculators (portals / aggregate lists):

Carbon footprint calculators (individual):

(part of Greenhouse Innovation Programme):

Solar PV (Domestic Rooftop) calculators:

  • Solar Energy Calculator by Energy Savings Trust

  • Solar Design Company SAP 2005/2009 routine - includes economic calcs [free]

  • (what do domestic solar designers / installers use?) 

Solar PV (Commercial) calculators:

Hydrogen calculators:

Biogas calculators:

Carbon Capture calculators: