200 Braddell Road Singapore 579700
Building and Construction Authority
Q. What is Intelligent Energy Efficiency (IEE) Calculator?
A. IEE calculator consists of two tools:
Assessment tool – help you to predict your building project’s energy efficiency level at the project design stage, before building is built or retrofitted. The inputs are the key design parameters required by Green Mark standards, while the output are the annual energy consumptions of building and building systems as well as the energy savings compared to the reference energy models of Green Mark.
Verification tool – help you to verify your building project’s energy efficiency at the in-operation stage. The inputs are the as-built parameters required by Green Mark standards as well as the actual building energy consumptions and operational conditions. And the output are the energy savings compared to the calibrated reference energy models of Green Mark.
Q. How Intelligent Energy Efficiency Calculator can help me for Green Mark certification?
A. You can use the assessment tool as a design tool to evaluate the design parameters’ energy impact, and use it to prepare the energy efficiency assessment report to be submitted to Green Mark. Once the building is built or retrofitted, you can use the verification tool to prepare the energy efficiency verification report to be submitted to Green Mark.
Q. How to use the tool and what is the workflow?
A. You may refer to the user manuals and the workflow in this link.
Q. When I can use the tools?
A. You can use the assessment tool at project design stage before building is built or retrofitted, and use the verification tool at Green Mark verification stage once the building is built or retrofitted and in operation.
Q. What if I doubt the results of the tool?
A. You may use other Green Mark approved tools or approaches to generate the results.
Q: Is the tool free to use?
A： The tool is free to use during the piloting period. User may be charged based on the subscription free after piloting period. We will inform users one month before end of piloting period.