# LEED v5: Enhanced Energy Efficiency (EA Credit)

This credit replaced the "Optimize Energy Performance" credit from v4.1, and the changes are substantial enough that you can't just dust off your old approach. Worth 1-10 points for New Construction (with 8 points required if you're pursuing Platinum, which is a meaningful threshold). Core & Shell maxes out at 7 points, with 5 required for Platinum.

The stated intent mentions facilitating the transition to a clean energy future, which is fine messaging, but practically you're here because energy performance affects operating costs, ESG targets, and increasingly, building valuations. The credit structure reflects USGBC's push toward decarbonization over cost-based optimization.

### What Changed From v4.1

The fundamental shift is away from cost-based performance toward future source energy. v4.1 let you model using cost or GHG emissions. v5 commits to future source energy for the performance path, with an electric site-to-source conversion factor of 2.0 based on projected grid improvements. Whether the grid actually improves on that timeline is a separate question, but that's what the metric assumes.

The prescriptive path got a complete overhaul. Instead of following the Advanced Energy Design Guides, you're accumulating credits from ASHRAE 90.1-2022 Section 11. The math works differently, the measures are different, and your energy consultant needs to understand the Section 11 credit system if you're going prescriptive.

Plug and process loads finally got their own pathway. In v4.1, these were mostly invisible unless you went through exceptional calculations. In v5, there's a dedicated path with real points available.

### Option 1: Prescriptive Path (1-10 points)

You can pursue Path 1, Path 2, or both for a maximum of 10 points. This is additive, not either/or.

#### Path 1: Regulated Loads (1-7 points)

Regulated loads are HVAC, service water heating, and lighting. The things ASHRAE standards have been addressing since forever. You pick either Case 1 or Case 2 depending on which ASHRAE standard you're using.

**Case 1: ASHRAE 90.1-2019 (1-5 points)**

Only available to projects registering before January 1, 2028. After that, you're on Case 2 whether you like it or not.

You comply with ASHRAE 90.1-2019 Sections 5-10, then implement Additional Efficiency Requirements credits from ASHRAE 90.1-2022 Section 11. Yes, you're mixing standards. Where Section 11 references prescriptive requirements from Sections 5-10, you use the 90.1-2019 values, not the 2022 ones. This matters because the baseline values differ.

**Case 2: ASHRAE 90.1-2022 (4-7 points)**

You comply with ASHRAE 90.1-2022 Sections 5-11, which means you're already meeting the minimum Section 11 requirements. Your LEED points come from implementing credits *above* that minimum.

Notice Case 2 starts at 4 points, not 1. This isn't generosity. The 90.1-2022 baseline is more stringent, so clearing it gets you credit that the 90.1-2019 path makes you work for.

**Eligible Measures**

From ASHRAE 90.1-2022 Section 11.5.2:

* HVAC measures (H01 to H07)
* Service water heating measures (W01 to W09)
* Lighting measures (L01 to L06)
* G07 building mass/night flush

These are prescriptive measures with assigned credit values in Section 11. You accumulate credits by implementing measures, then translate those credits to LEED points using Table 1.

**Point Thresholds**

| LEED Points | Case 1 (90.1-2019) | Case 2 (90.1-2022)            |
| ----------- | ------------------ | ----------------------------- |
| 1           | 25 credits         | -                             |
| 2           | 50 credits         | n/a                           |
| 3           | 75 credits         | -                             |
| 4           | 100 credits        | Minimum required by 90.1-2022 |
| 5           | 125 credits        | Min. required + 25 credits    |
| 6           | n/a                | Min. required + 50 credits    |
| 7           | n/a                | Min. required + 75 credits    |

The "n/a" for point 2 under Case 2 is not a typo. The point scale is discontinuous because you're already at 4 points just for meeting the 90.1-2022 baseline. Points 1, 2, and 3 don't exist in Case 2.

For Case 1, you're accumulating credits from zero. 25 credits gets you 1 point, 125 credits gets you 5 points and you're done. For Case 2, you need to figure out what the minimum required credits are for your building type and climate zone, then add 75 more on top of that to max out at 7 points.

#### Path 2: Plug and Process Loads (1-4 points)

This is new territory. Plug and process loads (PPLs) weren't systematically addressed in v4.1, and now they have a dedicated path with multiple approaches. Pick the case that fits your project, or combine them if that somehow makes sense.

**Case 1: Plug Load Management (1 point)**

Implement both of these:

1. Provide a plug load dashboard accessible via an application to all regular occupants. Tenants can opt out of displaying their loads to other tenants, which addresses the obvious privacy concern.
2. For building types or tenant types with IT departments, implement policies requiring PCs, monitors, and visual displays to be controlled off when not in use (except during scheduled maintenance).

This is about visibility and policy, not equipment replacement. You're making plug loads legible to occupants and establishing expectations that things get turned off. One point for doing both things. The IT department policy requirement is specific because that's where you typically find the most equipment running 24/7 for no defensible reason.

**Case 2: Efficient Plug and Process Load Equipment (1-4 points)**

Install or reuse eligible equipment meeting Table 2 criteria for 90% of applicable equipment by quantity or rated load. You can count reused equipment, but you need to be consistent. Either include all reused equipment or exclude all reused equipment from the calculations.

Standard projects (not process-intensive):

* One equipment category from Table 2: 1 point
* Two equipment categories: 2 points
* Three or more equipment categories: 3 points

Process-intensive buildings have a different path: install or reuse eligible equipment for at least 90% of total applicable equipment-rated load, with compliant equipment totaling:

* 0.5 W/sq ft: 3 points
* 1.0 W/sq ft: 4 points

**Table 2: Equipment Criteria**

This table is comprehensive enough that most projects will find applicable categories:

| Equipment Category        | Applicable Equipment                                                                                               | Criteria                                                         |
| ------------------------- | ------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------- |
| ENERGY STAR plug loads    | Office equipment, appliances, electronics, vending machines, pool pumps, water coolers                             | ENERGY STAR or equivalent, ≥0.1 W/sq ft total rated load         |
| ENERGY STAR process loads | Commercial food service, data center/server equipment, commercial laundry, EV chargers, lab refrigerators/freezers | ENERGY STAR or equivalent, ≥0.1 W/sq ft total rated load         |
| People conveyance         | Elevators, escalators, moving walkways                                                                             | ISO 25745, Class A minimum                                       |
| Data center electrical    | Electrical system design                                                                                           | ASHRAE 90.4-2022, design electrical loss ≥20% below maximum      |
| Refrigeration systems     | Equipment in ASHRAE 90.1 Section 6.8 tables, not ENERGY STAR eligible                                              | 10% improvement beyond Section 6.8 tables                        |
| Refrigerated warehouse    | Warehouse refrigeration                                                                                            | California Title 24-2022, Section 120.6 requirements             |
| Airport equipment         | Baggage handling                                                                                                   | Individual carrier systems with VFD                              |
| Airport equipment         | Aircraft/jetway air conditioning                                                                                   | Preconditioned air systems meeting ASHRAE 90.1 HVAC efficiencies |

The 0.1 W/sq ft minimum prevents claiming credit for one efficient appliance in an otherwise equipment-light building. You need meaningful equipment density before this path becomes viable.

**Case 3: Plug and Process Load Exceptional Calculation (1-4 points)**

Use the ASHRAE 90.1 Section G2.5 Exceptional Calculation Method to demonstrate percentage improvement in total project plug and process, refrigeration, and conveyance loads.

| Percent Improvement | Points |
| ------------------- | ------ |
| 10%                 | 1      |
| 20%                 | 2      |
| 30%                 | 3      |
| 40%                 | 4      |

This is modeling-intensive but flexible. If your plug loads are substantial and your efficiency measures don't fit neatly into Case 2's categories, exceptional calculations let you demonstrate the improvement directly. You need defensible baseline assumptions and verifiable proposed performance, which means this isn't a hand-wave exercise.

### Option 2: Energy Simulation (1-10 points)

This is the performance path, now explicitly tied to future source energy instead of cost. You're using ASHRAE 90.1 Appendix G with several modifications that change how the model works and what gets rewarded.

**Key Provisions:**

Use whichever ASHRAE 90.1 version you applied for the Minimum Energy Efficiency prerequisite (either 2019 or 2022).

Replace the Building Performance Factors from ASHRAE's Table 4.2.1.1 with Table 5 (shown below). For major building renovation areas, multiply the BPF by 1.05, which loosens the target slightly to account for existing conditions you're working around.

Replace all cost references with future source energy. Electric site-to-source conversion factor is 2.0 for U.S. projects. Projects outside the U.S. can use lower national averages where applicable.

Model energy efficiency measures for plug and process loads using Section G2.5 Exceptional Calculation Method or approved calculations. This is mandatory, not optional. Plug loads can't be invisible in the model anymore.

Calculate the performance index and percentage improvement both with and without plug and process savings. This creates visibility into what portion of your improvement comes from regulated loads versus unregulated loads.

**Performance Indices:**

The formulas look like algebra homework but they're straightforward once you parse them:

* **PInre** = PBPnre / BBP (performance index excluding on-site renewable contribution)
* **PI** = PBP / BBP (performance index including on-site renewable contribution)
* **PIt** = \[BBUE + (BPF × BBRE)] / BBP (performance index target)

Where:

* BBP = baseline building performance (future source energy)
* BBUE = baseline building unregulated future source energy
* BBRE = baseline building regulated future source energy
* PBPnre = proposed building performance without on-site renewable credit
* PBP = proposed building performance with on-site renewable credit
* BPF = building performance factor from Table 5

**Point Thresholds**

You pick either Path 1 (excluding renewables) or Path 2 (including renewables). Not both. This forces a decision about whether your on-site renewables are part of your efficiency story or separate.

| Path 1: % Reduction Excluding Renewables (100% - PInre/PIt) | Path 2: % Reduction Including Renewables (100% - PI/PIt) | Points |
| ----------------------------------------------------------- | -------------------------------------------------------- | ------ |
| 3%                                                          | 10%                                                      | 1      |
| 6%                                                          | 20%                                                      | 2      |
| 9%                                                          | 30%                                                      | 3      |
| 12%                                                         | 40%                                                      | 4      |
| 15%                                                         | 50%                                                      | 5      |
| 18%                                                         | 60%                                                      | 6      |
| 21%                                                         | 70%                                                      | 7      |
| 24%                                                         | 80%                                                      | 8      |
| 27%                                                         | 90%                                                      | 9      |
| 30%                                                         | 100%                                                     | 10     |

Path 2's thresholds are much steeper. Getting to 10 points without renewables requires 30% improvement. With renewables, you need 100% improvement, which is net zero or better. This isn't accidental. USGBC wants you to pursue efficiency first, renewables second.

**Building Performance Factors (Table 5)**

These are identical to the Table 1 values from the prerequisite because they're from the same ASHRAE 90.1-2019 standard:

| Building Type       | 0A   | 0B   | 1A   | 1B   | 2A   | 2B   | 3A   | 3B   | 3C   | 4A   | 4B   | 4C   | 5A   | 5B   | 5C   | 6A   | 6B   | 7    | 8    |
| ------------------- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- | ---- |
| Multifamily         | 0.74 | 0.69 | 0.73 | 0.70 | 0.73 | 0.70 | 0.71 | 0.70 | 0.63 | 0.70 | 0.71 | 0.69 | 0.68 | 0.70 | 0.70 | 0.68 | 0.68 | 0.68 | 0.74 |
| Healthcare/hospital | 0.72 | 0.72 | 0.73 | 0.73 | 0.74 | 0.71 | 0.72 | 0.74 | 0.71 | 0.72 | 0.73 | 0.71 | 0.74 | 0.73 | 0.80 | 0.73 | 0.77 | 0.78 | 0.79 |
| Hotel/motel         | 0.72 | 0.71 | 0.72 | 0.71 | 0.71 | 0.70 | 0.71 | 0.73 | 0.72 | 0.71 | 0.73 | 0.73 | 0.71 | 0.73 | 0.74 | 0.70 | 0.72 | 0.70 | 0.70 |
| Office              | 0.62 | 0.63 | 0.61 | 0.62 | 0.58 | 0.60 | 0.57 | 0.62 | 0.55 | 0.55 | 0.61 | 0.57 | 0.58 | 0.61 | 0.59 | 0.58 | 0.60 | 0.54 | 0.58 |
| Restaurant          | 0.65 | 0.62 | 0.63 | 0.61 | 0.62 | 0.58 | 0.63 | 0.63 | 0.63 | 0.67 | 0.66 | 0.66 | 0.70 | 0.70 | 0.68 | 0.73 | 0.72 | 0.74 | 0.77 |
| Retail              | 0.57 | 0.54 | 0.53 | 0.53 | 0.48 | 0.47 | 0.47 | 0.47 | 0.47 | 0.52 | 0.50 | 0.56 | 0.57 | 0.53 | 0.59 | 0.58 | 0.56 | 0.53 | 0.60 |
| School              | 0.57 | 0.57 | 0.58 | 0.57 | 0.55 | 0.54 | 0.57 | 0.51 | 0.49 | 0.48 | 0.51 | 0.52 | 0.51 | 0.53 | 0.51 | 0.53 | 0.50 | 0.51 | 0.58 |
| Warehouse           | 0.28 | 0.30 | 0.24 | 0.27 | 0.23 | 0.24 | 0.27 | 0.23 | 0.20 | 0.33 | 0.26 | 0.28 | 0.40 | 0.32 | 0.29 | 0.44 | 0.38 | 0.40 | 0.44 |
| All others          | 0.65 | 0.62 | 0.64 | 0.62 | 0.57 | 0.54 | 0.57 | 0.56 | 0.58 | 0.59 | 0.57 | 0.60 | 0.60 | 0.59 | 0.65 | 0.62 | 0.62 | 0.61 | 0.64 |

If you're using ASHRAE 90.1-2022 for the prerequisite, you still use these 90.1-2019 BPFs for the optimization credit. The reference guide doesn't provide 90.1-2022 BPFs for this credit, which is either an oversight or a deliberate choice to maintain consistency across projects regardless of which prerequisite path they took.

### Practical Considerations

**Prescriptive vs. Performance:** The prescriptive path avoids the modeling overhead but caps you at 10 points through a combination of regulated loads and plug/process loads. The performance path requires modeling but scales to 10 points through a single metric. If you're already modeling for the prerequisite, the incremental effort to pursue Option 2 is lower than it looks.

**The Platinum Threshold Matters:** New Construction projects need 8 points for Platinum. Core & Shell needs 5. These aren't suggestions; they're requirements. If you're pursuing Platinum certification, the prescriptive path needs to hit those thresholds through some combination of regulated and plug load points. The performance path needs to clear the corresponding percentage improvements.

**Plug Loads Got Real:** The plug and process load path is the biggest structural change from v4.1. Projects with significant equipment density (data centers, labs, commercial kitchens) now have a viable route to points that wasn't practically available before. The equipment criteria in Table 2 are specific enough to be useful but broad enough that most project types will find applicable categories.

**Future Source Energy Changes the Math:** The 2.0 site-to-source conversion factor and the shift away from cost-based modeling will change which efficiency measures look attractive. Electric heating measures that didn't pencil out under cost modeling might perform better under future source energy, assuming your grid isn't already heavily renewable. The modeling assumptions matter more than they did in v4.1.

**Section 11 Credits Require Learning:** If you're going prescriptive, your team needs to understand ASHRAE 90.1-2022 Section 11's credit system. This isn't hard, but it's not intuitive either. The credits have specific definitions, prerequisites, and calculation methods. Budget time to actually read Section 11 before you commit to accumulating 75 incremental credits for 7 points.

### What Changed and Why It Matters

LEED v5's energy credit reflects a shift from cost optimization to decarbonization. The future source energy metric, the mandatory plug load modeling, and the Section 11 credit system all push projects toward measures that reduce carbon emissions rather than just operating costs.

For projects in regions with clean grids, this alignment is natural. For projects in coal-heavy regions, the 2.0 conversion factor creates an optimistic view of your building's carbon performance. Whether that optimism is justified depends on grid transformation happening faster than historical trends suggest.

The Platinum thresholds (8 points for NC, 5 for CS) mean energy performance is no longer optional for high-level certification. You can't ignore this credit and make up the points elsewhere. This is intentional. USGBC decided buildings pursuing Platinum certification need to demonstrate meaningful energy performance, not just check boxes across other categories.

The prescriptive path's shift to Section 11 credits moves away from the Advanced Energy Design Guide approach. The AEDGs were useful but inflexible. Section 11 credits let you mix and match measures based on what actually makes sense for your building type and climate. The tradeoff is complexity. The AEDG path was straightforward; the Section 11 path requires more calculation and verification.

Plug and process loads getting their own pathway acknowledges that regulated loads are only part of the energy story. A building with efficient HVAC and lighting but inefficient equipment still uses too much energy. The plug load path forces attention to equipment efficiency, occupant behavior (through the dashboard requirement), and IT policies. These were always important; now they're worth points.