Quick Start Guide


Mepsy: The Appliance & Equipment Climate Impact Calculator

ⓘ Appliance Comparison (Logarithmic Scale):

ⓘ Country Comparison (Logarithmic Scale):

Download Model Data

ⓘ Scenario



ⓘ Policy Dates

ⓘ Optional Parameters


ⓘ Shipment Data

ⓘ Equipment Data

ⓘ Scenario Assumptions (Click to Edit or Paste Table)
Scenario Assumptions of Phase Out
Unit Price
Scenario Assumptions
Unit Price
Scenario Assumptions
Unit Price

ⓘ Economic Data

ⓘ Appliance Regulation

ⓘ Energy Sector Data

Applies to Electric Technologies: Heat Pump, Electric Storage Heater, Electric Instant Heater
Air-Source Heat Pumps, Ground-Source Heat Pumps, Electric Radiators
Applies to Non-Electric Technologies: Gas Storage Heater, Gas Instant Heater
Applies to Non-Electric Technologies: Boilers

CO2 Reduction, Energy Reduction, and Products in Use


Last update: October 2022 Version: V1.8.1

Mepsy is optimized for the Chrome web browser. If fields are not displaying correctly, please adjust your browser, window size, or zoom settings.

Citation: 'Mepsy: The Appliance & Equipment Climate Impact Calculator', CLASP, V1.8.1, October 2022, https://clasp.shinyapps.io/mepsy.

Further resources: For an overview of the tool see this Introduction to Mepsy; for instructions see the Mepsy Quick-Start Guide; to review the model documentation see the Mepsy Methodology and Assumptions. For further questions, please contact us.

CLASP improves the energy and environmental performance of the appliances and equipment we use every day, accelerating our transition to a more sustainable world. Visit our website.

Developed by - Federico Tallis

© Clasp -

Creative Commons License
Mepsy by CLASP is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.