DEP > BWT_9608_Coney Island WPCP Campus
Wastewater Treatment Plant in New York City, NY · 2591 Knapp St · 11235
At a glance
DEP > BWT_9608_Coney Island WPCP Campus is a 309,325-square-foot wastewater treatment plant at 2591 Knapp St in New York City, New York, built in 1935. In its 2024 New York City benchmarking disclosure it reported an ENERGY STAR score of 29 out of 100 (grade D), a site energy-use intensity of 593.2 kBtu/ft² and 18,128 tCO₂e of greenhouse-gas emissions. That score is higher than 43% of the 14 scored wastewater treatment plant buildings in New York City.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 29 (band D) |
| Site EUI | 593.2 kBtu/ft² |
| Source EUI | 1386.9 kBtu/ft² |
| GHG emissions | 18,128 tCO₂e |
| GHG intensity | 58.6 kgCO₂e/ft² |
| Electricity | 39,583,136 kWh |
| Natural gas | 478,878 therms |
| Gross floor area | 309,325 sq ft |
| Source record | nyc:21355922:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 29 | -6 | 593.2 kBtu/ft² | 18,128 tCO₂e |
| 2023 | 35 | -5 | 523.4 kBtu/ft² | 16,213 tCO₂e |
| 2022 | 40 | 268.1 kBtu/ft² | 14,345 tCO₂e |
Compliance context
Local Law 84 (LL84)
Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 2591 Knapp St
- City
- New York City
- State
- New York
- ZIP
- 11235
- Coordinates
- 40.59013, -73.93215
Within ~1 km
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See also: most efficient in New York City · biggest emitters
How does DEP > BWT_9608_Coney Island WPCP Campus compare with other wastewater treatment plant buildings in New York City?
The latest disclosures cover 14 wastewater treatment plant buildings in New York City, out of 48,310 buildings citywide. DEP > BWT_9608_Coney Island WPCP Campus's ENERGY STAR score of 29 compares with an average of 38 across the 14 that report a score; it scores higher than 43% of them and lower than 50%. Its site EUI of 593.2 kBtu/ft² is about 63% above the average of 364.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 58.6 kgCO₂e/ft² is about 64% above the group average of 35.8 kgCO₂e/ft².
At 309,325 sq ft, it is about half of the average floor area of 685,694 sq ft for those buildings. It was built in 1935, 17 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 24 wastewater treatment plant buildings average an ENERGY STAR score of 41 and a site EUI of 373.7 kBtu/ft².
How has DEP > BWT_9608_Coney Island WPCP Campus's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for DEP > BWT_9608_Coney Island WPCP Campus, covering report years 2022–2024. Its ENERGY STAR score went from 40 in 2022 to 29 in 2024 (-11 points); its best year on file was 2022, at 40. Site EUI moved from 268.1 kBtu/ft² (2022) to 593.2 kBtu/ft² (2024), an 121% increase. Reported emissions went from 14,345 tCO₂e to 18,128 tCO₂e over the same span (up 26%).
What does an ENERGY STAR score of 29 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 29 means the building performs better than about 29% of its national peers. BuildingCensus bands the score into report-card grades; 29 falls in band D — lowest band (1–54). It sits 46 points below 75, the threshold for ENERGY STAR certification. In New York City, 43% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. DEP > BWT_9608_Coney Island WPCP Campus's 593.2 kBtu/ft² across 309,325 sq ft works out to about 183.5 billion Btu (53,776 MWh-equivalent) in 2024. Its source EUI of 1386.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 39,583,136 kWh of electricity and 478,878 therms of natural gas for the year.
Which law requires DEP > BWT_9608_Coney Island WPCP Campus to report its energy use?
DEP > BWT_9608_Coney Island WPCP Campus reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:21355922:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
More wastewater treatment plant buildings in New York City
- DEP > BWT_9617_Tallman Island WPCP Campus· 151,313 sq ft · score 69 (C)
- DEP > BWT_9616_Rockaway WPCP Campus· 151,255 sq ft · score 49 (D)
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is DEP > BWT_9608_Coney Island WPCP Campus's energy grade?
DEP > BWT_9608_Coney Island WPCP Campus scores 29 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 New York City disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does DEP > BWT_9608_Coney Island WPCP Campus use?
Its 2024 site energy-use intensity was 593.2 kBtu/ft² (1386.9 kBtu/ft² source) across 309,325 sq ft, including 39,583,136 kWh of electricity and 478,878 therms of natural gas.
What are DEP > BWT_9608_Coney Island WPCP Campus's carbon emissions?
DEP > BWT_9608_Coney Island WPCP Campus reported 18,128 tCO₂e of greenhouse-gas emissions (58.6 kgCO₂e/ft²) for 2024.
Where is DEP > BWT_9608_Coney Island WPCP Campus?
DEP > BWT_9608_Coney Island WPCP Campus is at 2591 Knapp St, in New York City, New York 11235. Its coordinates are 40.59013, -73.93215 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is DEP > BWT_9608_Coney Island WPCP Campus and when was it built?
DEP > BWT_9608_Coney Island WPCP Campus has 309,325 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1935 as its year built. It is classed as wastewater treatment plant.
Is DEP > BWT_9608_Coney Island WPCP Campus covered by Local Law 84 (LL84)?
Yes — it appears in the 2024 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
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About this data
Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “DEP > BWT_9608_Coney Island WPCP Campus, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/dep-bwt-9608-coney-island-wpcp-campus-19a43045 (data as of October 2, 2026).