Portner Flats
Multifamily Housing in Washington, DC, DC · 1440 V Street NW · 20009
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 57 (band C) |
| Site EUI | 45.5 kBtu/ft² |
| Source EUI | 125.9 kBtu/ft² |
| GHG emissions | 361 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 1,190,721 kWh |
| Natural gas | 792 therms |
| Water use | 3,336 kgal |
| Gross floor area | 90,982 sq ft |
| Source record | dc:PM6786655:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 57 | -5 | 45.5 kBtu/ft² | 361 tCO₂e |
| 2023 | 62 | ±0 | 42.4 kBtu/ft² | 344 tCO₂e |
| 2022 | 62 | +6 | 43.2 kBtu/ft² | 339 tCO₂e |
| 2021 | 56 | +1 | 44.2 kBtu/ft² | 370 tCO₂e |
| 2020 | 55 | 43.6 kBtu/ft² | 376 tCO₂e |
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
PORTNER FLATS LLC
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Location
- Address
- 1440 V Street NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20009
- Coordinates
- 38.91788, -77.03338
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
Frequently asked questions
What is Portner Flats's energy grade?
Portner Flats scores 57 out of 100 on ENERGY STAR — band C (Below median (55–69)) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Portner Flats use?
Its 2024 site energy-use intensity was 45.5 kBtu/ft² (125.9 kBtu/ft² source) across 90,982 sq ft, including 1,190,721 kWh of electricity and 792 therms of natural gas.
What are Portner Flats's carbon emissions?
Portner Flats reported 361 tCO₂e of greenhouse-gas emissions (4.0 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:PM6786655:2024.