Energy Performance Assessment and Energy Conservation Act
Energy Performance Assessment and the Energy Conservation Act
This domain links measured performance with India's legal framework. It tests specific energy consumption, baseline normalization, regression and CUSUM, and the EC Act 2001 as amended in 2022, including designated consumers, PAT and ESCerts.
Core rules
- Specific energy consumption (SEC) = energy input ÷ useful output. Compare only within the same product, boundary and operating period.
- Normalize for production, ambient conditions and product mix. A baseline equation or regression is more defensible than a single annual ratio.
- Under PAT, designated consumers in energy-intensive sectors must meet sector-specific SEC targets. Over-performers earn ESCerts; under-performers can buy them or pay penalties.
- The 2022 amendment widened the Act to energy efficiency and conservation, carbon markets, and includes residential buildings and larger establishments; verify current threshold notifications rather than memorizing old lists.
Worked example
A plant's baseline SEC is 800 kWh/tonne. In the assessment year it produces 10,000 tonnes and consumes 7.6 million kWh, so actual SEC = 7,600,000 ÷ 10,000 = 760 kWh/tonne. Reduction = 40 kWh/tonne × 10,000 = 400,000 kWh. At INR 7/kWh, savings are INR 2.8 million. If production had fallen 15%, the apparent SEC improvement could be a utilisation artefact, so the baseline should be adjusted before claiming savings.
Traps
Comparing SEC across plants with different product mix; using gross vs net calorific value inconsistently; ignoring boundary changes; and treating ESCerts as a tax rather than a tradable certificate.