LEED v5 Energy & Atmosphere Credits Guide

LEED v5 Energy and Atmosphere Credits: A Comprehensive Guide

The Leadership in Energy and Environmental Design (LEED) v5 certification system offers several credits under the Energy and Atmosphere (EA) category designed to enhance building energy efficiency and promote sustainable practices. These credits aim to drive decarbonization efforts, improve energy independence, and reduce operational costs. This guide delves into the specifics of LEED v5's EA credits, focusing on the Energy Performance (EA 302) credit, which allows projects to earn points based on their energy efficiency improvements.

Understanding LEED v5 Energy Performance Credits

In LEED v5, the Energy Performance credit (EA 302) rewards projects for exceeding the baseline energy performance set by ASHRAE 90.1-2022 standards. Projects can earn additional points by documenting incremental energy credits from eligible measures. For instance, a new construction project can earn up to three extra points by achieving a certain number of energy credits beyond the baseline. Core and Shell projects have different criteria depending on whether they include central systems or not, with potential for up to four additional points.

Eligible Measures and Incremental Points

To qualify for additional points, projects must document specific measures that contribute to energy savings. These measures include:

• H02: HVAC Heating Performance Improvement - Achieving a 20% or greater weighted average improvement in heating efficiency can earn 28 energy credits.
• L04: Increased Daylighting Control Area - Implementing continuous daylight dimming across 65% of the daylighting area can yield four energy credits.
• L06: Reduce Interior Lighting Power - Improving regulated lighting power by 10% or more can result in 20 energy credits.
• E01: Improved Envelope Performance - Enhancing the envelope performance factor by 4.5% can secure 45 energy credits.

Projects must calculate the total energy credits achieved and ensure that a portion of these credits comes from measures eligible for LEED points.

Renewable Energy Credits and Procurement

LEED v5 also emphasizes the importance of renewable energy through its Energy and Atmosphere credits. Projects can earn points by integrating on-site renewable energy generation or procuring renewable energy credits (RECs). The credit system is structured into three tiers:

• Tier 1: On-site renewable energy generation or social impact projects.
• Tier 2: New off-site renewable electricity.
• Tier 3: Off-site renewable energy.

For example, adding a roof-mounted photovoltaic array with a rated capacity of at least 0.75 W/sq. ft. can achieve 30 energy credits under measure R01: On-site Renewable Energy. Each tier has specific requirements regarding the vintage, location, and certification of the renewable energy sources.

Practical Guidance from Real Project Experience

From our experience at ISG, we've seen that successful projects often integrate multiple strategies to maximize their energy efficiency and renewable energy contributions. For instance, combining improved HVAC performance with enhanced daylighting controls and efficient lighting can significantly boost a project's energy credits. Additionally, leveraging on-site renewable energy sources can not only meet but exceed LEED requirements, leading to higher certification levels.

How ISG Can Help

At ISG, we specialize in helping projects navigate the complexities of LEED certification, particularly in optimizing energy performance and renewable energy integration. Our team of experts can assist in identifying eligible measures, calculating energy credits, and ensuring compliance with LEED v5 requirements. Contact us today to learn more about how we can support your project's sustainability goals.