NAS Bldg
Office in Washington, DC, DC · 2101 Constitution Ave NW · 20418
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 52 (band D) |
| Site EUI | 56.4 kBtu/ft² |
| Source EUI | 150.1 kBtu/ft² |
| GHG emissions | 748 tCO₂e |
| GHG intensity | 4.8 kgCO₂e/ft² |
| Electricity | 2,353,190 kWh |
| Natural gas | 2,105 therms |
| Water use | 3,662 kgal |
| Gross floor area | 155,397 sq ft |
| Source record | dc:PM3641737:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 52 | +5 | 56.4 kBtu/ft² | 748 tCO₂e |
| 2023 | 47 | -7 | 56.6 kBtu/ft² | 959 tCO₂e |
| 2022 | 54 | 56.2 kBtu/ft² | 955 tCO₂e | |
| 2021 | — | 45.9 kBtu/ft² | 783 tCO₂e | |
| 2020 | — | 48.8 kBtu/ft² | 796 tCO₂e | |
| 2019 | 50 | +2 | 65.9 kBtu/ft² | 1,144 tCO₂e |
| 2018 | 48 | -24 | 68.4 kBtu/ft² | 1,273 tCO₂e |
| 2017 | 72 | +4 | 51.7 kBtu/ft² | 1,351 tCO₂e |
| 2016 | 68 | -8 | 55.6 kBtu/ft² | 1,469 tCO₂e |
| 2015 | 76 | +4 | 50.3 kBtu/ft² | 1,440 tCO₂e |
| 2014 | 72 | 52.6 kBtu/ft² | 1,507 tCO₂e | |
| 2013 | — | — | — |
Compliance context
Clean and Affordable Energy Act / BEPS
DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve on 5-year compliance cycles, with penalties for buildings that fail to meet their pathway.
Ownership
NATIONAL ACADEMY OF SCIENCES
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Location
- Address
- 2101 Constitution Ave NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20418
- Coordinates
- 38.89306, -77.04777
Within ~1 km
Nearby benchmarked buildings
- Main Complexscore 59
Office · 1,872,507 sq ft
- Ross Hall Groupscore —
College/University · 1,047,627 sq ft
- Columbia Plaza All Bldgsscore 30
Multifamily Housing · 942,990 sq ft
- Northwestern Buildingscore 90
Office · 732,964 sq ft
- Watergate East, Inc.score 30
Multifamily Housing · 553,633 sq ft
Office · 547,240 sq ft
See also: most efficient in Washington, DC · biggest emitters
Frequently asked questions
What is NAS Bldg's energy grade?
NAS Bldg scores 52 out of 100 on ENERGY STAR — band D (Lowest band (1–54)) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does NAS Bldg use?
Its 2024 site energy-use intensity was 56.4 kBtu/ft² (150.1 kBtu/ft² source) across 155,397 sq ft, including 2,353,190 kWh of electricity and 2,105 therms of natural gas.
What are NAS Bldg's carbon emissions?
NAS Bldg reported 748 tCO₂e of greenhouse-gas emissions (4.8 kgCO₂e/ft²) for 2024. DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve on 5-year compliance cycles, with penalties for buildings that fail to meet their pathway.
Dataset updated . Source: Building Energy Benchmarking disclosure, record dc:PM3641737:2024.