New York City Building Energy and Gas Consumption Monthly Data

Monthly whole building electricity and natural gas consumption data for privately owned buildings over 25,000 square feet and City-owned buildings over 10,000 square feet in New York City. The dataset is published by the City of New York under Local Law 84 and can be linked to annual water and energy data using a 'Property ID' key. It was last updated in November 2025.

Use Cases

• Analyze monthly electricity consumption patterns across different building sizes and ownership types (City-owned vs. private).
• Model natural gas usage trends to assess seasonal energy demand and efficiency initiatives.
• Link monthly consumption data to annual building characteristics using the 'Property ID' column for longitudinal energy analysis.
• Benchmark energy performance of large buildings against Local Law 84 and Energy Star standards.

Strengths

• Data is mandated and reported under New York City's Local Law 84, ensuring regulatory compliance and standardized collection.
• Covers a specific and policy-relevant subset of the building stock (private >25k sq ft, City-owned >10k sq ft).
• Includes a 'Property ID' key for linking to a separate annual dataset with full building characteristics, enabling deeper analysis.

Limitations

• The exact number of rows, columns, and data volume is unknown, limiting assessment of scale and completeness.
• Data is limited to large buildings in New York City, not representative of smaller buildings or other geographies.
• Relies on self-reported building data which may contain inaccuracies or reporting gaps.

Provenance

Source

City of New York

Collection Method

Mandatory reporting of whole building energy consumption under Local Law 84.

Time Range

Calendar year coverage (specific years not stated).

Freshness

Last updated November 2025, indicating recent data availability.

Geography

New York City, USA.