Hospital Net Zero

Resources

33 primary sources the playbooks and calculators rely on. Each is an organization or dataset published by its owner.

US federal data and tools (DOE, EPA, EIA, NIST, NREL)

EPA eGRID

Grid emission rates by plant, state and subregion. The recommended basis for US location-based Scope 2.

Grid dataUse for: Scope 2 factors

EPA Power Profiler

Look up the eGRID subregion and fuel mix for a ZIP code.

Grid dataUse for: Finding your subregion

EPA Greenhouse Gas Equivalencies Calculator

Official equivalencies tool and its calculations and references page.

Official toolUse for: Explaining emissions in plain terms

EPA GHG Emission Factors Hub

Annual emission factors for stationary combustion, mobile sources, refrigerants and purchased electricity.

DatasetUse for: Scope 1 factors

EPA Section 608 refrigerant management

Rules for handling, leak repair and recovering ozone-depleting and substitute refrigerants.

RegulationUse for: Refrigerant compliance

EPA HFC phasedown (AIM Act)

US phasedown of hydrofluorocarbon production and use, and related technology transitions.

RegulationUse for: Planning chiller and AC replacements

ENERGY STAR Portfolio Manager

Free benchmarking tool; hospitals can receive a 1 to 100 score where eligible.

Official toolUse for: EUI and score tracking

ENERGY STAR: What is EUI?

Defines energy use intensity and lists national median EUI by property type.

ReferenceUse for: Hospital median EUI

ENERGY STAR hospital technical reference (PDF)

How the hospital score is built: variables, dataset and filters.

MethodUse for: Understanding the score

DOE Federal Energy Management Program (FEMP)

Federal energy and water efficiency guidance, life-cycle costing and training.

ProgramUse for: Project economics

DOE Better Buildings Solution Center

Case studies and implementation models from partners including healthcare organizations.

Case studiesUse for: Peer practice

DOE Commercial Reference Buildings

Simulation-ready prototype buildings, including a hospital, used for benchmarking and modelling.

ModelsUse for: Baseline simulation

DOE Building Energy Codes Program

Status of ASHRAE 90.1 and IECC adoption and the cost-effectiveness of code changes.

CodesUse for: Code compliance

NIST Annual Supplement to Handbook 135 (2025)

Energy price indices and discount factors for federal life-cycle cost analysis.

MethodUse for: Discount rates and UPV formulas

NREL PVWatts Calculator

Estimate solar PV production for a location, tilt and system size.

Official toolUse for: Solar yield

EIA Commercial Buildings Energy Consumption Survey (CBECS)

National survey data on energy use in US commercial buildings, including inpatient health care.

DatasetUse for: National benchmarks

OSHA waste anesthetic gases

Occupational exposure guidance for waste anesthetic gases in healthcare settings.

RegulationUse for: Staff safety alongside emissions

Green building, healthcare sustainability and codes

USGBC LEED

The LEED rating systems, credit library and project resources. Authoritative source for current credits and deadlines.

CertificationUse for: Choosing a rating system

GBCI

The body that administers LEED project certification and professional credentials.

CertificationUse for: Reviews and credentials

CAGBC: LEED v5 O+M fact sheet (PDF)

Category points, prerequisites and credits for LEED v5 Operations and Maintenance.

Fact sheetUse for: Existing-hospital certification

Facilities Dive: LEED v5 released

Trade-press summary of LEED v5 for building operations, with facility-manager implications.

NewsUse for: What changed in v5

Practice Greenhealth

US healthcare sustainability membership, benchmarks and awards.

ProgramsUse for: Peer benchmarking

ASHE (American Society for Health Care Engineering)

Professional society for healthcare facility managers; publishes guidance on energy, codes and resilience.

SocietyUse for: Healthcare facility practice

NFPA

Publisher of NFPA 99, NFPA 101 and NFPA 110, which bound what can change in a hospital.

StandardUse for: Life safety and emergency power

IPCC Fifth Assessment Report

Source of the 100-year global warming potentials used in the refrigerant calculator.

ScienceUse for: GWP values

International networks, policy, data and standards

Health Care Without Harm and Global Green and Healthy Hospitals

Global network and programs for sustainable, low-carbon healthcare.

ProgramsUse for: Benchmarking and peer hospitals

WHO and ATACH (Alliance for Transformative Action on Climate and Health)

Country commitments and action pathways for climate-resilient, low-carbon health systems.

PolicyUse for: National commitments and health system policy

Electricity Maps

Live, historical and forecast carbon intensity of electricity by zone. API access needs a token.

Grid dataUse for: Scope 2 factors by hour

Our World in Data

Public chart data API for CO2, energy and related indicators.

Public dataUse for: Country-level context

Climate TRACE

Free public emissions inventory with downloads and API across sectors.

Public dataUse for: Sector emissions inventories

GHG Protocol

The standard for corporate Scope 1, 2 and 3 accounting.

StandardUse for: Setting boundaries and counting emissions

ISO 50001 energy management

Framework for continual energy performance improvement.

StandardUse for: Building a lasting energy management system

ASHRAE

Standards for HVAC, energy audits and healthcare ventilation (including Standard 170).

StandardUse for: Audits and ventilation design

How these were chosen

Spotted a broken link or a source worth adding? Send it over. Last reviewed 2026-11-04.