A project team is providing additional ventilation under Indoor Environmental Quality Credit, Enhanced Indoor Air...

While increased ventilation improves indoor air quality, it can also lead to higher energy consumption, impacting LEED BD+C Energy and Atmosphere (EA) Credit: Optimize Energy Performance.

More ventilation requires more heating/cooling energy, which can increase energy use and reduce overall energy efficiency.

This can lower the points earned for energy optimization, since LEED rewards projects that minimize energy consumption.

Other credits (Options A, B, and D) are not directly affected by increased ventilation rates.

Energy performance is negatively impacted when additional ventilation leads to increased HVAC energy demand.

(Source: Official LEED BD+C Reference Manual)