The AECB Carbon Calculator calculates Whole Life Carbon, that is embodied and operational CO₂ from Cradle to Grave.  It’s written by Tim Martel who has worked as a Certified Passivhaus Designer for 10 years, formerly a Chartered Architectural Technologist, a course tutor for the AECB CarbonLite™ Retrofit Foundation course, and AECB software R&D lead and developer.

This stand-alone calculator does not need PHPP to operate.

Input Process

• Built-in library of almost 900 entries, mainly from EPDs, containing the Whole Life info for stages A-D including sequestration for timber/natural materials.
• 60 year Reference Study Period (which can be changed to 50 for Ireland).
• Matches materials automatically and allows you to adjust the choice where necessary. You can also filter the list to show just the UK/Ireland or Europe.
• Remembers materials so that when you select them again it remembers the EPD you chose last time.
• Density of some materials can be adjusted, for example mineral fibre insulation if installed at a different density.
• 100% FSC/PEFC certified wood is assumed (affects the sequestration calculation), or if it is not, you can give the % that is.

Examples of the input process buttons 1, 3 and 4:

Outputs

• Up to 12 options can be graphed/compared (only first 4 shown below).
• Fully transparent calculation.
• Coloured “heat map” results, the output table is coloured by value to make it easy to see where the CO₂ is coming from.
• Whole Life Carbon CO₂ graph shows operational and embodied CO_2.
• EmbodR results tab gives RIBA 2030 Challenge, LETI, and an estimate of UKNZCBS laid out on printable pages.
• WLCA uncertainty factor is set up for you to help you calculate it – this improves your result by reducing the percentage that has to be added.

Examples of the CO₂ heatmap results:

Examples of Whole Life Carbon CO₂ graphs:

Examples of results to towards UK carbon targets and standards

Minimum System Requirements – You will need:

• A Windows (PC) computer. If you have a Mac you will need to run a PC emulator (it works with Parallels, VMware fusion 11 with the PC version of Excel installed)
• Microsoft Office 2019 or later

Upon purchase an e-mail which will be sent to you (within 2 working days) containing instructions on how to verify your sale, obtain a licence key for use and access the CO₂ Calc.

Buying the package with an annual subscription fee

An annual subscription gives you access to continual updates of the AECB Carbon Calculator. Each year about 200 Environmental Product Declarations (EPDs) are replaced, the National Grid’s Future Energy Scenarios are updated, government CO2 factors are updated and improvements are made to the usability and new standards, such as the UK Net Zero Carbon Building Standard (pilot). An annual subscription allows us to keep all these changes up to date.

The first year’s subscription fee is included in the purchase price.

Upon the anniversary of your product purchase you will receive a request/invoice to pay the yearly subscription fee.

Discounts

Discounts are available for bulk purchases (more than 4) please email [email protected] for further information.

Discounts are also available for educational institutions – please email [email protected] for details.

TDUK members please use your coupon code at the checkout.

These discounts cannot be combined with the AECB membership discounted price.

Products in the AECB shop are sold according to the terms and conditions listed here.