CarbonPilot

04 · Act

What should we do next?

Every opportunity is ranked on carbon saved, money saved or spent, and implementation effort, weighted by how confident its emission factor is. Open any one to see its arithmetic.

Export plan (.md) CSV

Ranked opportunities

32 found · ranked by score · cost curve ↓

  1. 01

    Office energy efficiency retrofit

    low effort

    Apply a 15% reduction to electricity kwh (27% of the current footprint).

    Carbon
    −460 tCO₂e/yr
    Cost
    saves $74K /yr
    Confidence
    90% confidence

    Score

    43.5

    ✓ In the action plan

    Baseline calculation

    4,304,333 kWh × 0.712 kgCO₂e/kWh = 3,064.7 tCO₂e

    Factor: Indonesia MEMR grid emission factor (Jamali) / IEA (2025), ±12% uncertainty

    Trade-off vs #2 (Shift internal travel to virtual meetings)

    Saves 224 t more and costs $390K more per year; confidence +9.9 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  2. 02

    Office energy efficiency retrofit

    low effort

    Apply a 15% reduction to electricity kwh (27% of the current footprint).

    Carbon
    −460 tCO₂e/yr
    Cost
    saves $74K /yr
    Confidence
    90% confidence

    Score

    43.5

    ✓ In the action plan

    Baseline calculation

    4,304,333 kWh × 0.712 kgCO₂e/kWh = 3,064.7 tCO₂e

    Factor: Indonesia MEMR grid emission factor (Jamali) / IEA (2025), ±12% uncertainty

    Trade-off vs #2 (Shift internal travel to virtual meetings)

    Saves 224 t more and costs $390K more per year; confidence +9.9 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  3. 03

    Shift internal travel to virtual meetings

    low effort

    Apply a 25% reduction to flight passenger km (8% of the current footprint).

    Carbon
    −235 tCO₂e/yr
    Cost
    saves $464K /yr
    Confidence
    81% confidence

    Score

    41.4

    ✓ In the action plan

    Baseline calculation

    6,193,226 passenger_km × 0.152 kgCO₂e/passenger_km = 941.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — domestic/short-haul/long-haul weighted by typical corporate mix, with RF (2026), ±30% uncertainty

    Trade-off vs #3 (Mandate rail over short-haul flights)

    Saves 188 t less and costs $93K more per year; confidence +0.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  4. 04

    Shift internal travel to virtual meetings

    low effort

    Apply a 25% reduction to flight passenger km (8% of the current footprint).

    Carbon
    −235 tCO₂e/yr
    Cost
    saves $464K /yr
    Confidence
    81% confidence

    Score

    41.4

    ✓ In the action plan

    Baseline calculation

    6,193,226 passenger_km × 0.152 kgCO₂e/passenger_km = 941.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — domestic/short-haul/long-haul weighted by typical corporate mix, with RF (2026), ±30% uncertainty

    Trade-off vs #3 (Mandate rail over short-haul flights)

    Saves 188 t less and costs $93K more per year; confidence +0.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  5. 05

    Mandate rail over short-haul flights

    medium effort

    Apply a 45% reduction to flight passenger km (8% of the current footprint).

    Carbon
    −424 tCO₂e/yr
    Cost
    saves $557K /yr
    Confidence
    81% confidence

    Score

    38.7

    ✓ In the action plan

    Baseline calculation

    6,193,226 passenger_km × 0.152 kgCO₂e/passenger_km = 941.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — domestic/short-haul/long-haul weighted by typical corporate mix, with RF (2026), ±30% uncertainty

    Trade-off vs #4 (Driver efficiency and route optimisation)

    Saves 309 t more and costs $524K less per year; confidence −13.2 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  6. 06

    Mandate rail over short-haul flights

    medium effort

    Apply a 45% reduction to flight passenger km (8% of the current footprint).

    Carbon
    −424 tCO₂e/yr
    Cost
    saves $557K /yr
    Confidence
    81% confidence

    Score

    38.7

    ✓ In the action plan

    Baseline calculation

    6,193,226 passenger_km × 0.152 kgCO₂e/passenger_km = 941.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — domestic/short-haul/long-haul weighted by typical corporate mix, with RF (2026), ±30% uncertainty

    Trade-off vs #4 (Driver efficiency and route optimisation)

    Saves 309 t more and costs $524K less per year; confidence −13.2 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  7. 07

    Driver efficiency and route optimisation

    low effort

    Apply a 12% reduction to diesel litre (9% of the current footprint).

    Carbon
    −115 tCO₂e/yr
    Cost
    saves $34K /yr
    Confidence
    94% confidence

    Score

    35.4

    ✓ In the action plan

    Baseline calculation

    381,488 litre × 2.5123 kgCO₂e/litre = 958.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — diesel (average biofuel blend) (2026), ±6% uncertainty

    Trade-off vs #5 (Right-size weekend cloud workloads)

    Saves 49 t more and costs $3.4M more per year; confidence +18.7 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  8. 08

    Driver efficiency and route optimisation

    low effort

    Apply a 12% reduction to diesel litre (9% of the current footprint).

    Carbon
    −115 tCO₂e/yr
    Cost
    saves $34K /yr
    Confidence
    94% confidence

    Score

    35.4

    ✓ In the action plan

    Baseline calculation

    381,488 litre × 2.5123 kgCO₂e/litre = 958.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — diesel (average biofuel blend) (2026), ±6% uncertainty

    Trade-off vs #5 (Right-size weekend cloud workloads)

    Saves 49 t more and costs $3.4M more per year; confidence +18.7 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  9. 09

    Renewable PPA for purchased electricity

    high effort

    Apply a 80% reduction to electricity kwh (27% of the current footprint).

    Carbon
    −2,452 tCO₂e/yr
    Cost
    costs $99K /yr
    Confidence
    90% confidence

    Score

    32.5

    ✓ In the action plan

    Baseline calculation

    4,304,333 kWh × 0.712 kgCO₂e/kWh = 3,064.7 tCO₂e

    Factor: Indonesia MEMR grid emission factor (Jamali) / IEA (2025), ±12% uncertainty

    Trade-off vs #7 (Sustainable-hotel travel policy)

    Saves 2,444 t more and costs $233K more per year; confidence +12.6 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  10. 10

    Right-size weekend cloud workloads

    medium effort

    Apply a 30% reduction to cloud compute vcpu hour (2% of the current footprint).

    Carbon
    −66 tCO₂e/yr
    Cost
    saves $3.5M /yr
    Confidence
    75% confidence

    Score

    32.5

    ✓ In the action plan

    Baseline calculation

    549,915,712 vCPU_hours × 0.0004 kgCO₂e/vCPU_hours = 220.0 tCO₂e

    Factor: Cloud Carbon Footprint methodology (min/max watts per vCPU x PUE 1.2, + embodied) (2025), ±40% uncertainty

    Trade-off vs #6 (Renewable PPA for purchased electricity)

    Saves 2,386 t less and costs $3.6M less per year; confidence −15.4 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  11. 11

    Right-size weekend cloud workloads

    medium effort

    Apply a 30% reduction to cloud compute vcpu hour (2% of the current footprint).

    Carbon
    −66 tCO₂e/yr
    Cost
    saves $3.5M /yr
    Confidence
    75% confidence

    Score

    32.5

    ✓ In the action plan

    Baseline calculation

    549,915,712 vCPU_hours × 0.0004 kgCO₂e/vCPU_hours = 220.0 tCO₂e

    Factor: Cloud Carbon Footprint methodology (min/max watts per vCPU x PUE 1.2, + embodied) (2025), ±40% uncertainty

    Trade-off vs #6 (Renewable PPA for purchased electricity)

    Saves 2,386 t less and costs $3.6M less per year; confidence −15.4 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  12. 12

    Renewable PPA for purchased electricity

    high effort

    Apply a 80% reduction to electricity kwh (27% of the current footprint).

    Carbon
    −2,452 tCO₂e/yr
    Cost
    costs $99K /yr
    Confidence
    90% confidence

    Score

    32.5

    ✓ In the action plan

    Baseline calculation

    4,304,333 kWh × 0.712 kgCO₂e/kWh = 3,064.7 tCO₂e

    Factor: Indonesia MEMR grid emission factor (Jamali) / IEA (2025), ±12% uncertainty

    Trade-off vs #7 (Sustainable-hotel travel policy)

    Saves 2,444 t more and costs $233K more per year; confidence +12.6 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  13. 13

    Sustainable-hotel travel policy

    low effort

    Apply a 10% reduction to hotel night (1% of the current footprint).

    Carbon
    −8 tCO₂e/yr
    Cost
    saves $134K /yr
    Confidence
    78% confidence

    Score

    32.3

    ✓ In the action plan

    Baseline calculation

    7,434 room_night × 10.4 kgCO₂e/room_night = 77.3 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — hotel stay (2026), ±35% uncertainty

    Trade-off vs #8 (Supplier engagement and low-carbon sourcing)

    Saves 524 t less and costs $246K more per year; confidence +13.8 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  14. 14

    Sustainable-hotel travel policy

    low effort

    Apply a 10% reduction to hotel night (1% of the current footprint).

    Carbon
    −8 tCO₂e/yr
    Cost
    saves $134K /yr
    Confidence
    78% confidence

    Score

    32.3

    ✓ In the action plan

    Baseline calculation

    7,434 room_night × 10.4 kgCO₂e/room_night = 77.3 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — hotel stay (2026), ±35% uncertainty

    Trade-off vs #8 (Supplier engagement and low-carbon sourcing)

    Saves 524 t less and costs $246K more per year; confidence +13.8 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  15. 15

    Supplier engagement and low-carbon sourcing

    medium effort

    Apply a 10% reduction to procurement usd (47% of the current footprint).

    Carbon
    −532 tCO₂e/yr
    Cost
    saves $380K /yr
    Confidence
    64% confidence

    Score

    31.1

    ✓ In the action plan

    Baseline calculation

    18,982,907 USD × 0.28 kgCO₂e/USD = 5,315.2 tCO₂e

    Factor: EPA Supply Chain GHG Emission Factors (spend-based), sector average (2025), ±60% uncertainty

    Trade-off vs #9 (Move batch compute to a greener region)

    Saves 411 t more and costs $4.8M more per year; confidence −11.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  16. 16

    Supplier engagement and low-carbon sourcing

    medium effort

    Apply a 10% reduction to procurement usd (47% of the current footprint).

    Carbon
    −532 tCO₂e/yr
    Cost
    saves $380K /yr
    Confidence
    64% confidence

    Score

    31.1

    ✓ In the action plan

    Baseline calculation

    18,982,907 USD × 0.28 kgCO₂e/USD = 5,315.2 tCO₂e

    Factor: EPA Supply Chain GHG Emission Factors (spend-based), sector average (2025), ±60% uncertainty

    Trade-off vs #9 (Move batch compute to a greener region)

    Saves 411 t more and costs $4.8M more per year; confidence −11.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  17. 17

    Move batch compute to a greener region

    high effort

    Apply a 55% reduction to cloud compute vcpu hour (2% of the current footprint).

    Carbon
    −121 tCO₂e/yr
    Cost
    saves $5.2M /yr
    Confidence
    75% confidence

    Score

    28.9

    ✓ In the action plan

    Baseline calculation

    549,915,712 vCPU_hours × 0.0004 kgCO₂e/vCPU_hours = 220.0 tCO₂e

    Factor: Cloud Carbon Footprint methodology (min/max watts per vCPU x PUE 1.2, + embodied) (2025), ±40% uncertainty

    Trade-off vs #10 (Lifecycle-tier cold storage archives)

    Saves 119 t more and costs $5.1M less per year; confidence +0.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  18. 18

    Move batch compute to a greener region

    high effort

    Apply a 55% reduction to cloud compute vcpu hour (2% of the current footprint).

    Carbon
    −121 tCO₂e/yr
    Cost
    saves $5.2M /yr
    Confidence
    75% confidence

    Score

    28.9

    ✓ In the action plan

    Baseline calculation

    549,915,712 vCPU_hours × 0.0004 kgCO₂e/vCPU_hours = 220.0 tCO₂e

    Factor: Cloud Carbon Footprint methodology (min/max watts per vCPU x PUE 1.2, + embodied) (2025), ±40% uncertainty

    Trade-off vs #10 (Lifecycle-tier cold storage archives)

    Saves 119 t more and costs $5.1M less per year; confidence +0.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  19. 19

    Lifecycle-tier cold storage archives

    low effort

    Apply a 20% reduction to cloud storage gb month (0% of the current footprint).

    Carbon
    −2 tCO₂e/yr
    Cost
    saves $48K /yr
    Confidence
    75% confidence

    Score

    27.7

    ✓ In the action plan

    Baseline calculation

    11,634,533 GB_month × 0.0008 kgCO₂e/GB_month = 9.3 tCO₂e

    Factor: Cloud Carbon Footprint methodology (SSD/HDD energy x PUE x replication factor) (2025), ±40% uncertainty

    Trade-off vs #11 (Water efficiency fixtures)

    Saves 1 t less and costs $44K less per year; confidence −8.2 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  20. 20

    Lifecycle-tier cold storage archives

    low effort

    Apply a 20% reduction to cloud storage gb month (0% of the current footprint).

    Carbon
    −2 tCO₂e/yr
    Cost
    saves $48K /yr
    Confidence
    75% confidence

    Score

    27.7

    ✓ In the action plan

    Baseline calculation

    11,634,533 GB_month × 0.0008 kgCO₂e/GB_month = 9.3 tCO₂e

    Factor: Cloud Carbon Footprint methodology (SSD/HDD energy x PUE x replication factor) (2025), ±40% uncertainty

    Trade-off vs #11 (Water efficiency fixtures)

    Saves 1 t less and costs $44K less per year; confidence −8.2 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  21. 21

    Car-pooling and EV hire policy

    medium effort

    Apply a 20% reduction to car km (1% of the current footprint).

    Carbon
    −16 tCO₂e/yr
    Cost
    saves $32K /yr
    Confidence
    83% confidence

    Score

    22.9

    ✓ In the action plan

    Baseline calculation

    477,561 km × 0.1704 kgCO₂e/km = 81.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — average car (2026), ±25% uncertainty

    Trade-off vs #13 (Boiler tuning and heat recovery)

    Saves 11 t less and costs $28K less per year; confidence −11.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  22. 22

    Car-pooling and EV hire policy

    medium effort

    Apply a 20% reduction to car km (1% of the current footprint).

    Carbon
    −16 tCO₂e/yr
    Cost
    saves $32K /yr
    Confidence
    83% confidence

    Score

    22.9

    ✓ In the action plan

    Baseline calculation

    477,561 km × 0.1704 kgCO₂e/km = 81.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — average car (2026), ±25% uncertainty

    Trade-off vs #13 (Boiler tuning and heat recovery)

    Saves 11 t less and costs $28K less per year; confidence −11.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  23. 23

    Water efficiency fixtures

    low effort

    Apply a 15% reduction to water m3 (0% of the current footprint).

    Carbon
    −3 tCO₂e/yr
    Cost
    saves $5K /yr
    Confidence
    83% confidence

    Score

    22.9

    ✓ In the action plan

    Baseline calculation

    96,221 m3 × 0.177 kgCO₂e/m3 = 17.0 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — water supply + treatment (2026), ±25% uncertainty

    Trade-off vs #12 (Car-pooling and EV hire policy)

    Saves 14 t less and costs $28K more per year; confidence +0.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  24. 24

    Water efficiency fixtures

    low effort

    Apply a 15% reduction to water m3 (0% of the current footprint).

    Carbon
    −3 tCO₂e/yr
    Cost
    saves $5K /yr
    Confidence
    83% confidence

    Score

    22.9

    ✓ In the action plan

    Baseline calculation

    96,221 m3 × 0.177 kgCO₂e/m3 = 17.0 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — water supply + treatment (2026), ±25% uncertainty

    Trade-off vs #12 (Car-pooling and EV hire policy)

    Saves 14 t less and costs $28K more per year; confidence +0.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  25. 25

    Boiler tuning and heat recovery

    medium effort

    Apply a 20% reduction to natural gas kwh (1% of the current footprint).

    Carbon
    −27 tCO₂e/yr
    Cost
    saves $4K /yr
    Confidence
    94% confidence

    Score

    18.7

    ✓ In the action plan

    Baseline calculation

    733,261 kWh × 0.1829 kgCO₂e/kWh = 134.1 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — natural gas (2026), ±5% uncertainty

    Trade-off vs #14 (Waste diversion and recycling programme)

    Saves 6 t less and costs $4K less per year; confidence +13.7 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  26. 26

    Boiler tuning and heat recovery

    medium effort

    Apply a 20% reduction to natural gas kwh (1% of the current footprint).

    Carbon
    −27 tCO₂e/yr
    Cost
    saves $4K /yr
    Confidence
    94% confidence

    Score

    18.7

    ✓ In the action plan

    Baseline calculation

    733,261 kWh × 0.1829 kgCO₂e/kWh = 134.1 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — natural gas (2026), ±5% uncertainty

    Trade-off vs #14 (Waste diversion and recycling programme)

    Saves 6 t less and costs $4K less per year; confidence +13.7 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  27. 27

    Waste diversion and recycling programme

    low effort

    Apply a 30% reduction to waste landfill kg (1% of the current footprint).

    Carbon
    −33 tCO₂e/yr
    Cost
    saves $723 /yr
    Confidence
    81% confidence

    Score

    18.5

    ✓ In the action plan

    Baseline calculation

    240,994 kg × 0.4588 kgCO₂e/kg = 110.6 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — waste disposal (2026), ±30% uncertainty

    Trade-off vs #15 (Electrify the delivery fleet)

    Saves 350 t less and costs $64K less per year; confidence −13.2 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  28. 28

    Waste diversion and recycling programme

    low effort

    Apply a 30% reduction to waste landfill kg (1% of the current footprint).

    Carbon
    −33 tCO₂e/yr
    Cost
    saves $723 /yr
    Confidence
    81% confidence

    Score

    18.5

    ✓ In the action plan

    Baseline calculation

    240,994 kg × 0.4588 kgCO₂e/kg = 110.6 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — waste disposal (2026), ±30% uncertainty

    Trade-off vs #15 (Electrify the delivery fleet)

    Saves 350 t less and costs $64K less per year; confidence −13.2 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  29. 29

    Electrify the sales fleet

    high effort

    Apply a 35% reduction to petrol litre (2% of the current footprint).

    Carbon
    −73 tCO₂e/yr
    Cost
    costs $17K /yr
    Confidence
    94% confidence

    Score

    0.0

    ✓ In the action plan

    Baseline calculation

    95,845 litre × 2.1681 kgCO₂e/litre = 207.8 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — petrol (average biofuel blend) (2026), ±6% uncertainty

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  30. 30

    Electrify the delivery fleet

    high effort

    Apply a 40% reduction to diesel litre (9% of the current footprint).

    Carbon
    −383 tCO₂e/yr
    Cost
    costs $63K /yr
    Confidence
    94% confidence

    Score

    0.0

    ✓ In the action plan

    Baseline calculation

    381,488 litre × 2.5123 kgCO₂e/litre = 958.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — diesel (average biofuel blend) (2026), ±6% uncertainty

    Trade-off vs #16 (Electrify the sales fleet)

    Saves 311 t more and costs $46K more per year; confidence +0.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  31. 31

    Electrify the delivery fleet

    high effort

    Apply a 40% reduction to diesel litre (9% of the current footprint).

    Carbon
    −383 tCO₂e/yr
    Cost
    costs $63K /yr
    Confidence
    94% confidence

    Score

    0.0

    ✓ In the action plan

    Baseline calculation

    381,488 litre × 2.5123 kgCO₂e/litre = 958.4 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — diesel (average biofuel blend) (2026), ±6% uncertainty

    Trade-off vs #16 (Electrify the sales fleet)

    Saves 311 t more and costs $46K more per year; confidence +0.0 pts.

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.
  32. 32

    Electrify the sales fleet

    high effort

    Apply a 35% reduction to petrol litre (2% of the current footprint).

    Carbon
    −73 tCO₂e/yr
    Cost
    costs $17K /yr
    Confidence
    94% confidence

    Score

    0.0

    ✓ In the action plan

    Baseline calculation

    95,845 litre × 2.1681 kgCO₂e/litre = 207.8 tCO₂e

    Factor: UK Government GHG Conversion Factors 2026 — petrol (average biofuel blend) (2026), ±6% uncertainty

    Assumptions

    • Reductions apply uniformly across the activity type; no rebound effect is modelled.
    • Emission factors are held constant across the scenario horizon.
    • Annualised from 12 month(s) of recorded activity data.
    • Financial impact is limited to the activity's own cost line, not capex or financing.

Action plan

Expected carbon cut
Expected cost impact

Totals assume every open action is executed; some actions overlap.

The economics behind the ranking

What each tonne costs, and what a carbon price changes

Marginal abatement cost curve

Each bar is one action: width is tCO₂e avoided per year, height is net cost per tonne. Cheapest tonne first.

Effort Low Medium High

26 of 32 actions pay for themselves, together up to 4,081 tCO₂e a year. The rest cost money; each breaks even at a carbon price of Renewable PPA for purchased electricity $40/t · Renewable PPA for purchased electricity $40/t · Electrify the delivery fleet $164/t · Electrify the delivery fleet $164/t · Electrify the sales fleet $237/t · Electrify the sales fleet $237/t.

US$ per tonne avoided · log scale · below zero saves money

−$10K −$1K −$100 $0 $100 0 2,000 t 4,000 t 6,000 t 8,000 t 3 4 5 6 15 16 1 2 9 12 30 31

Cumulative tCO₂e avoided per year →

Numbers on bars are each action’s rank in the list above. Actions on the same activity overlap, so the cumulative axis is an upper bound, not a plan.

Show as table
#ActiontCO₂e/yr$ per tonneCumulative tEffort
10 Right-size weekend cloud workloads 66.0 −$52K 66 medium
11 Right-size weekend cloud workloads 66.0 −$52K 132 medium
17 Move batch compute to a greener region 121.0 −$43K 253 high
18 Move batch compute to a greener region 121.0 −$43K 374 high
19 Lifecycle-tier cold storage archives 1.9 −$26K 376 low
20 Lifecycle-tier cold storage archives 1.9 −$26K 378 low
13 Sustainable-hotel travel policy 7.7 −$17K 385 low
14 Sustainable-hotel travel policy 7.7 −$17K 393 low
21 Car-pooling and EV hire policy 16.3 −$2K 409 medium
22 Car-pooling and EV hire policy 16.3 −$2K 426 medium
3 Shift internal travel to virtual meetings 235.3 −$2K 661 low
4 Shift internal travel to virtual meetings 235.3 −$2K 896 low
23 Water efficiency fixtures 2.6 −$2K 899 low
24 Water efficiency fixtures 2.6 −$2K 901 low
5 Mandate rail over short-haul flights 423.6 −$1K 1,325 medium
6 Mandate rail over short-haul flights 423.6 −$1K 1,749 medium
15 Supplier engagement and low-carbon sourcing 531.5 −$714 2,280 medium
16 Supplier engagement and low-carbon sourcing 531.5 −$714 2,812 medium
7 Driver efficiency and route optimisation 115.0 −$292 2,927 low
8 Driver efficiency and route optimisation 115.0 −$292 3,042 low
25 Boiler tuning and heat recovery 26.8 −$164 3,069 medium
26 Boiler tuning and heat recovery 26.8 −$164 3,095 medium
1 Office energy efficiency retrofit 459.7 −$162 3,555 low
2 Office energy efficiency retrofit 459.7 −$162 4,015 low
27 Waste diversion and recycling programme 33.2 −$22 4,048 low
28 Waste diversion and recycling programme 33.2 −$22 4,081 low
9 Renewable PPA for purchased electricity 2,451.8 +$40 6,533 high
12 Renewable PPA for purchased electricity 2,451.8 +$40 8,985 high
30 Electrify the delivery fleet 383.4 +$164 9,368 high
31 Electrify the delivery fleet 383.4 +$164 9,751 high
29 Electrify the sales fleet 72.7 +$237 9,824 high
32 Electrify the sales fleet 72.7 +$237 9,897 high

Put a price on carbon

Every avoided tonne is worth the carbon price, so each action’s net annual position is cost impact − tonnes avoided × price. Watch the ranking change as the price rises.

Carbon cost of today’s footprint
Actions that pay for themselves
Carbon they avoid

At , from a cost into a net saving.

# Action tCO₂e/yr Cost impact Carbon value Net / yr

▲ / ▼ is the move against the ranking at $0, which sorts on cost impact alone. Negative is a saving. The Singapore preset is its 2026 carbon tax of S$45 per tonne (NEA), converted at roughly US$0.77.