We have a project in Dubai targeting LEED Gold certification under LEED V4.1 BD+C New construction. As a green building consultant, we have planned to consider ASHRAE 90.1.2013 to create the baseline energy model as mentioned in the LEED Interpretation 10488: ASHRAE 90.1-2013 in LEED v4.1 BD+C, (https://www.usgbc.org/leedaddenda/10488)
Kindly request your feedback on the following queries:
- Is it acceptable to consider ASHRAE 90.1.2013 to determine the energy cost and greenhouse gas emission savings for LEED v4.1 project as mentioned in LEED Interpretation 10488?
- If acceptable, can we calculate the cost savings directly like: % of improvement = (Baseline building performance – proposed building performance) / Baseline building performance) as followed in LEED v4?
- If on site renewable energy produced, then we can subtract in both cost and green house gas emission, to achieve points in both cost and green house gas emission table. Please confirm.
- Can we consider, Renewable Energy Certificate (REC) purchased for the project to get points from Greenhouse Gas Emissions (Table 2)