Which of the following would be the lowest cost option?

The project team has been directed by the building owner to only pursue practices that directly improve the actual building performance.

Which of the following would be the lowest cost option?
A . Install a new high-efficiency chiller
B . Purchase renewable energy credits
C . Install new high efficiency urinal flush valves
D . Provide financial support for off-site conservation

View Answer

Answer: C

Explanation:

High efficiency urinal flush valves are a cost-effective way to improve building performance. They use less water than standard urinal flush valves, which can lead to significant savings on water bills over time1. This is a direct improvement to the building’s performance as it reduces the building’s water consumption, which is a key aspect of building performance. Other options like installing a new high-efficiency chiller or purchasing renewable energy credits might have higher upfront costs or may not directly improve the building’s performance12.

Reference: Five strategies to improve energy performance in existing buildings 5 Common Design Questions for Balancing Sustainability and Cost