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# Heat technology ternary diagram

 ```Title: Heat technology ternary diagram Content: The 2050 Calculator's heat sector translates users' choices into a one of a number of permutations of heat technology combinations. These are shown in the table below: |  Tech | | AA | | DD | | DA | | BA | | DB | | BB | | DC | | CC | | CA | | CB | | CD | | AD | | AC | | AB | | BC | | Gas boiler (old) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Gas boiler (new) | | 0.9 | | | | 0.2 | | | | | | | | | | | | | | | | | | | | | | | | | | Resisitive heating | | 0.1 | | 0.1 | | | | 0.1 | | | | | | 0.07 | | | | | | | | | | | | | | | | | | Oil-fired boiler | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Solid-fuel boiler | | | | | | | | | | | | 0.1 | | | | | | | | | | 0.1 | | 0.1 | | 0.1 | | 0.05 | | 0.15 | | Stirling engine μCHP | | | | | | | | | | | | | | | | | | 0.1 | | | | | | 0.19 | | 0.19 | | 0.24 | | | | Fuel-cell μCHP | | | | | | | | 0.9 | | | | | | | | | | 0.2 | | | | | | | | | | | | | | Air-source heat pump | | | | 0.6 | | 0.6 | | | | 0.5 | | | | 0.6 | | 0.58 | | | | 0.18 | | 0.25 | | | | | | | | 0.14 | | Ground-source heat pump | | | | 0.3 | | 0.2 | | 0 | | 0.3 | | 0.2 | | 0.3 | | 0.3 | | 0.3 | | 0.3 | | 0.25 | | | | | | | | 0.2 | | Geothermal | | | | | | | | | | | | | | | | 0.01 | | | | | | | | 0.01 | | 0.01 | | 0.01 | | | | Community scale gas CHP | | | | | | | | | | | | | | | | | | 0.33 | | | | 0.13 | | 0.3 | | 0.24 | | | | 0.15 | | Community scale solid-fuel CHP | | | | | | | | | | 0.2 | | 0.7 | | | | | | | | 0.45 | | 0.2 | | 0.33 | | 0.35 | | 0.63 | | 0.25 | | District heating from power stations | | | | | | | | | | | | | | 0.03 | | 0.11 | | 0.07 | | 0.07 | | 0.07 | | 0.07 | | 0.11 | | 0.07 | | 0.11 | To help users contextualise the choice between technology mixes, it is possible to view a comparison of the available combinations across three dimensions, using a ternary diagram. Two examples are shown below; the first using electric / individual / communal as the axis, and the second using solid / liquid / gas fuels. The Excel file used to produce these is available here: [insert link] User: Greg Haigh Picture updated at: Signed off by: Signed off at:``` ```Title: Heat technology ternary diagram Content: The 2050 Calculator's heat sector translates users' choices into a one of a number of permutations of heat technology combinations. These are shown in the table below: |  Tech | | AA | | DD | | DA | | BA | | DB | | BB | | DC | | CC | | CA | | CB | | CD | | AD | | AC | | AB | | BC | | Gas boiler (old) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Gas boiler (new) | | 0.9 | | | | 0.2 | | | | | | | | | | | | | | | | | | | | | | | | | | Resisitive heating | | 0.1 | | 0.1 | | | | 0.1 | | | | | | 0.07 | | | | | | | | | | | | | | | | | | Oil-fired boiler | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Solid-fuel boiler | | | | | | | | | | | | 0.1 | | | | | | | | | | 0.1 | | 0.1 | | 0.1 | | 0.05 | | 0.15 | | Stirling engine μCHP | | | | | | | | | | | | | | | | | | 0.1 | | | | | | 0.19 | | 0.19 | | 0.24 | | | | Fuel-cell μCHP | | | | | | | | 0.9 | | | | | | | | | | 0.2 | | | | | | | | | | | | | | Air-source heat pump | | | | 0.6 | | 0.6 | | | | 0.5 | | | | 0.6 | | 0.58 | | | | 0.18 | | 0.25 | | | | | | | | 0.14 | | Ground-source heat pump | | | | 0.3 | | 0.2 | | 0 | | 0.3 | | 0.2 | | 0.3 | | 0.3 | | 0.3 | | 0.3 | | 0.25 | | | | | | | | 0.2 | | Geothermal | | | | | | | | | | | | | | | | 0.01 | | | | | | | | 0.01 | | 0.01 | | 0.01 | | | | Community scale gas CHP | | | | | | | | | | | | | | | | | | 0.33 | | | | 0.13 | | 0.3 | | 0.24 | | | | 0.15 | | Community scale solid-fuel CHP | | | | | | | | | | 0.2 | | 0.7 | | | | | | | | 0.45 | | 0.2 | | 0.33 | | 0.35 | | 0.63 | | 0.25 | | District heating from power stations | | | | | | | | | | | | | | 0.03 | | 0.11 | | 0.07 | | 0.07 | | 0.07 | | 0.07 | | 0.11 | | 0.07 | | 0.11 | To help users contextualise the choice between technology mixes, it is possible to view a comparison of the available combinations across three dimensions, using a ternary diagram. Two examples are shown below; the first using electric / individual / communal as the axis, and the second using electric / solid / gas fuels. Ternary diagram: electric, individual, communal Ternary diagram: solid, gas, electric The Excel file used to produce these is available here: Ternary diagram Excel file User: Greg Haigh Picture updated at: Signed off by: Signed off at:```