What common strategy is used to enhance energy efficiency in existing buildings for LEED compliance?

Implementing retrofitting strategies is a prevalent method for enhancing energy efficiency in existing buildings and is a key aspect of achieving LEED compliance. Retrofitting involves upgrading the building's systems, such as HVAC, lighting, insulation, and windows, to improve their energy performance without needing to construct a new facility. This not only reduces energy consumption but also helps in lowering operational costs and enhancing occupant comfort. By addressing older systems that may be outdated or inefficient, retrofitting directly contributes to reduced greenhouse gas emissions and supports sustainable development goals. This approach aligns with LEED's emphasis on existing structures and their transformation to meet modern energy standards, making it a strategic choice for energy efficiency enhancement.