BEE PAT and ECBC, backed by measured energy data
India's Bureau of Energy Efficiency (BEE) runs two programs that depend on energy data. PAT sets specific energy consumption targets for designated consumers in energy-intensive sectors, verified by accredited energy auditors. ECBC sets minimum energy performance for commercial buildings. Aqueduct supplies metered energy by plant, process and building, specific energy consumption trends and verified savings.
What PAT and ECBC are and who they apply to
The Bureau of Energy Efficiency was set up under India's Energy Conservation Act, 2001. Under the Act, designated consumers in energy-intensive sectors such as cement, steel, aluminum, fertilizer, textiles, pulp and paper, thermal power and others must appoint an energy manager, carry out mandatory energy audits and report energy use. The Perform, Achieve and Trade (PAT) scheme gave each designated consumer a specific energy consumption (SEC) target per unit of product. Units that beat the target earned Energy Saving Certificates (ESCerts), and units that missed it had to buy them. Results are measured and verified by accredited energy auditors.
The Energy Conservation Building Code (ECBC) sets minimum energy performance for commercial buildings above a connected load threshold, with higher voluntary levels. States adopt and enforce it, and it has been expanded into the Energy Conservation and Sustainable Building Code. India is also moving energy-intensive sectors toward its carbon credit trading scheme. Coverage, targets and cycles are changing, so check current BEE and state notifications for your plant or building.
PAT and ECBC requirements and the evidence Aqueduct supplies
Aqueduct supplies measured energy. Your energy manager, accredited auditor and the authority do the rest.
| Requirement | Evidence needed | How Aqueduct supplies it |
|---|---|---|
| Specific energy consumption | Energy per unit of product for the baseline and target years | Metered energy by plant and process, divided by production figures you supply, trended monthly |
| Normalization factors | Adjustments for capacity use, product mix and other factors the method allows | Production, operating hours and weather recorded alongside energy so your auditor can apply normalization |
| Fuel and electricity inputs | Grid, captive power, diesel and other fuels by unit | Meters on incomers, DG sets, captive plants and solar, read over Modbus or pulse outputs |
| Mandatory energy audit | An audit by an accredited energy auditor | Interval profiles, significant energy uses and fault findings that shorten the audit's data collection |
| Energy savings evidence | Measures taken and savings achieved | Savings verified at the meter against a baseline, per measure |
| ECBC building systems | Lighting, HVAC and electrical systems operating as designed | Sub-metered lighting, HVAC and plug loads, with after-hours running and controls faults flagged |
| Building energy performance | Energy performance index for the building | EUI from metered consumption and the area you enter, tracked over time |
How to prepare for a PAT verification or ECBC review
Confirm your status
Check whether your plant is a designated consumer and which cycle or scheme applies, or which ECBC version your state enforces for the building.
Meter every energy input
Cover grid incomers, captive generation, DG sets, fuel lines and solar so total energy is measured, not inferred.
Tie energy to production
Feed production data into the same timeline so SEC is calculated monthly and drift is caught early.
Act and verify
Route faults to maintenance, and verify each measure's savings at the meter so the claimed savings hold up.
Prepare the auditor pack
Export energy by input and process, SEC trends, normalization data and the meter register for your accredited auditor.
What stays with your energy manager and auditor
PAT and ECBC are legal obligations. Aqueduct supplies the data.
Forms and filings
Your energy manager prepares the statutory forms and submissions to BEE and the state designated agency.
Measurement and verification
Accredited energy auditors verify SEC and savings. Aqueduct does not verify or certify.
Building approvals
ECBC compliance is checked by the authority through the approval process with your design team.
Related schemes
Often handled alongside PAT and ECBC.
sites in 21 countries run on Aqueduct.
and 9 clinics in one of India’s top hospital chains.
US airport running water intelligence on Aqueduct.
of commercial real estate under Aqueduct.
FMCG manufacturing campus.
operations run on Aqueduct.
Related
Common questions
Perform, Achieve and Trade is a BEE scheme that set specific energy consumption targets for designated consumers in energy-intensive sectors. Units that beat targets earned tradable Energy Saving Certificates. Aqueduct supplies the metered energy behind SEC.
Specific energy consumption is the energy used per unit of product, such as per tonne of cement. It is the core metric in PAT, and Aqueduct calculates it monthly from metered energy and your production data.
India is moving energy-intensive sectors toward its carbon credit trading scheme with emission intensity targets. Check current notifications for how your sector and plant are covered.
The Energy Conservation Building Code sets minimum energy performance requirements for commercial buildings in India, adopted and enforced by states. It has been expanded into the Energy Conservation and Sustainable Building Code.
No. Accredited auditors carry out mandatory audits and verification. Aqueduct gives them complete, measured data to work from.
Yes. Aqueduct reads energy meters on DG sets and, where fitted, fuel flow, so captive generation is counted in total energy.
See Aqueduct on your own facility.
Bring a site, a utility bill or a question. We will show you where the loss is.