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DEC Theory and OrCalc Software Training

6.0 CPD Hours

Standard Rate
£620.00  +VAT
Member Rate
£500.00  +VAT
  • Energy Assessor Training

Upcoming dates

Book Now

This course will provide the background knowledge related to Display Energy Certification and the role of the Energy Assessor, as well as an overview of the ORCalc Software used to produce the Display Energy Certificate itself and the associated Advisory Report.

The course will cover:

  • Building certification
  • Application of the legislation
  • Calculating the Operational Rating
  • Data Required
  • The Assessment Period
  • OSR & LZC Recognition
  • Benchmarks & Developing Composite Benchmarks
  • Handling Shared Occupancy Buildings
  • Campus Buildings
  • Developing Advisory Reports
  • Government software ORCalc - Use and Data Entry

Learning outcomes:

Knowledge required to undertake assessment of and produce Display Energy Certificates / Advisory Reports.  


If you wish to produce DECs you must demonstrate that you are competent in the use of an approved software tool to produce the DEC and Advisory Report. This course offers training on the DEC government software ORCalc. 

You must have downloaded and installed OrCalc Software in advance of this course. You can do this here (


If you wish to produce Display Energy Certificates (DECs) you must:

- have gained certification as a Low Carbon Energy Assessor (LCEA) with CIBSE Certification.

- be able to demonstrate that you are competent in the use of an approved software tool to produce the DEC and Advisory Report. 

Being a Low Carbon Consultant is a pre-requisite for being an LCEA with CIBSE Certification. If you are not yet a Low Carbon Consultant Building Operations, find out more about routes to becoming an LCEA to produce DECs before sitting this course.

If you are hoping to certify as a DEC assessor we recommend that you complete the pre-APEL form, before you complete the LCC Building Operations assessment.



Agenda for event
Time Description
This course will run from 10am to 4pm.

There are adequate breaks spaced throughout the day and specific timings will be at the discretion of the trainer. 

Delegates wishing to go on to become LCEAs (Low Carbon Energy Assessors) and be able to produce Display Energy Certificates must be existing CIBSE LCCs (Low Carbon Consultants) before attending this course.

For delegates who are attending only to expand knowledge and complete CPD requirements (and not become LCEAs), a knowledge of assessing energy consumption in buildings would be required.



Adrian Sweetman

Adrian Sweetman

Acreshort Consulting | Principal Energy Consultant

Adrian Sweetman has an engineering background and has applied that knowledge to the energy management field thus bringing a practical perspective to the courses he delivers.

Having been training for CIBSE since 2008, Adrian has a good level of knowledge in the field of energy efficiency, legislation and compliance gained through working with a divers set of commercial and industrial clients as a consultant.

Adrian is also a CIBSE Certification Non Domestic Energy Assessor and ESOS Lead Assessor.

Remote - How to join:

Remote sessions of this course will be hosted live online on Microsoft Teams. A Microsoft Teams account is not required, you will be sent a link to join.

You can choose to join on your preferred web browser, or if you already have the Microsoft Teams desktop app, click 'join meeting'. You will then automatically join the course through the app.


For any face-to-face sessions, the course location will be underneath the respective date. Parking is not available. Lunch and refreshments will be provided on the day. If you have any special dietary requirements, please contact us before your course date.

What is included?

- Full day training with an industry expert trainer

- CPD certificate

- PDF course materials & OrCalc Software download

The course presentation and any additional materials will be sent to delegates once attendance is confirmed on the day of the course.

We are working towards being more sustainable, therefore we do not recommend materials to be printed.

Delegates will be expected to complete two sample Display Certificates & Advisory Reports from case studies provided. These would be completed after the course and submitted for assessment.

Two simple ways to book:

Card - Use the 'Book Now' button at the top of this web page.

Invoice - Please fill in the booking form herePlease note you are only booked onto the course once Training has processed the form.

* If you are having any difficulties please either email us at [email protected] 

You must have downloaded and installed OrCalc Software in advance of this course.

You can do this in the following ways:

Downloading it from here (

Request a copy of the software directly from CIBSE Certification [email protected] or the CIBSE Training team [email protected]

You will also be provided with a CIP data file to use alongside the software. 

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