What is CEn-Calc?

CEn-Calc offers a comprehensive software solution for companies to measure, manage, and reduce their carbon emissions. It provides the necessary tools, data and insights to support sustainability initiatives, compliancy requirements and stakeholder expectations, leading to more sustainable and resilient businesses.


CEn-Calc was initially developed as an inhouse tool for the leading sustainability consultants Sustainable Footprints before being made externally available to both direct clients and other consultancy providers, with the following objectives:

Our Journey So Far

The Consultants tool of choice developed from practical application


Originally developed by a leading UK based sustainability consultancy as an in-house tool for their consultants to use when compiling GHG inventories, carbon footprints, energy profiles and for utilisation in compliancy activities such as ESOS, SECR, ISO, Netzero & ESG (Environmental, Social and Governance) reporting activities.


Based on requests and feedback from clients and interest from other reputed sustainability consultants specialising in Carbon Footprinting, CEn-Calc was made externally available in excel format.


In collaboration with several highly experienced partners including live client testers, methodology validators, data analysts and a peer review board, CEn-Calc began its transition to the cloud as a SaaS model.


CEn-Calc launched to an open market.

Requirements for a Carbon & Energy Calculator


  • Provide an accurate, up to date GHG (greenhouse gas) Inventory
  • Easily auditable for correctness and consistency
  • Software that is easy to use – no experience required


  • Easy to input data from multiple sources and volumetric units
  • Data outputs that can be utilised in as many formats as required
  • Accessible by multiple staff and across multiple sites


  • Competitive and reasonable pricing
  • Less reliance on third party consultants = less cost
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