BRSR Core Solar Energy Evidence for Factories and Suppliers in 2026

For BRSR Core readiness, a factory should build a traceable energy evidence chain from meter or invoice to reported renewable-energy numerator, with ownership of environmental attributes documented and double counting prevented. A solar invoice, PPA or panel photograph is not enough. The pack should reconcile consumption, generation, exports, renewable certificates and organisational boundaries to the reporting period, while distinguishing renewable electricity evidence from carbon credits under CCTS and voluntary Green Credits.

Key Takeaways

• BRSR Core includes energy consumed from renewable sources and total energy consumption, supported by measurement data and an assessment or assurance trail.
• The entity should reconcile source records to site, legal entity, period, units and reporting boundary.
• On-site solar generation is not automatically equal to renewable consumption: exports and transferred attributes must be addressed.
• A REC, a CCTS carbon credit and a Green Credit are different instruments; one should not substitute for another without a valid reporting basis.
• The BRSR Core glide path reaches the top 500 listed entities for FY2025-26 and top 1,000 for FY2026-27.
• Under SEBI’s March 2025 changes, value-chain ESG disclosure is voluntary from FY2025-26 and its assessment or assurance is voluntary from FY2026-27 for the top 250 listed entities.

What renewable-energy data does BRSR Core require?

SEBI’s BRSR Core format identifies energy as a core attribute and expresses the renewable share as energy consumed through renewable sources divided by total energy consumed. Total energy includes non-renewable and renewable fuel, purchased electricity, heating, cooling and steam, and self-generated energy in the specified framework. Units and conversions must be consistent.

Which companies face the BRSR Core glide path?

SEBI’s July 2023 framework phased BRSR Core reasonable assurance from the top 150 listed entities in FY2023-24 to the top 250 in FY2024-25, top 500 in FY2025-26 and top 1,000 in FY2026-27, ranked by market capitalisation. Later changes use “assessment or assurance” from FY2024-25 onward. Finance teams should consult current LODR requirements and SEBI circulars.

This glide path concerns BRSR Core of listed entities; it is not the same as value-chain disclosure. SEBI’s March 2025 circular made ESG disclosures for the value chain voluntary from FY2025-26 for the top 250 listed entities, and the assessment or assurance of those disclosures voluntary from FY2026-27. A customer may still contractually request supplier data. Voluntary under securities regulation does not mean optional under a supply agreement.

How should a factory prove on-site solar consumption?

Start with the organisational and operational boundary. Identify legal entity, GSTIN where useful, site, meter IDs, reporting dates and whether the system is owned, leased or under PPA. Then reconcile inverter data to revenue-grade generation meters and electricity bills.

Use this calculation only after checking meter topology:

On-site solar consumed = gross solar generation − solar exported − separately transferred or ineligible quantities

If auxiliary consumption or storage creates material differences, document treatment. Do not use installed capacity multiplied by a generic yield as reported consumption when actual meters exist. Estimates should be exceptional, methodologically controlled and clearly labelled.

Monthly, retain opening and closing readings, exports, downtime, meter replacement notes and invoice totals. Investigate gaps between inverter portals and calibrated meters.

Who owns the renewable attributes?

Read the EPC, RESCO, PPA, open-access and REC clauses. The party consuming physical electricity may not own every certificate or claim. If RECs are issued and sold, the seller should not also make an unqualified renewable-consumption claim for the same MWh where the chosen reporting framework requires attribute ownership or retirement.

Record certificate number, technology, vintage, generation period, quantity, registry account, transfer and retirement status. Match retired quantity to the reporting entity and boundary required by the methodology.

How can double counting be prevented?

Create a unique energy-lot register. One MWh should have one controlled identity through generation, sale, certificate issuance and claim. Block duplicate claims across plant owner, rooftop host, group company, customer and financing programme.

Do not add PPA electricity, RECs and avoided emissions as separate quantities. Certificates are attributes; avoided-emissions estimates are analytical results.

How do RECs, carbon credits and Green Credits differ?

What is a Renewable Energy Certificate?

A REC represents renewable-electricity attributes under the applicable electricity-regulatory framework. It is measured in electricity units and used for renewable procurement or compliance/claims as permitted. Ownership, redemption or retirement records matter.

What is a CCTS carbon credit?

A carbon credit under India’s Carbon Credit Trading Scheme represents a verified emissions outcome in tonnes of carbon-dioxide equivalent under that scheme’s rules. It is not proof that the buyer consumed a MWh of renewable electricity. Do not insert carbon credits into the renewable-energy numerator.

What is a Green Credit?

Green Credits arise under the separate Green Credit Programme for notified environmental activities. SEBI introduced a voluntary BRSR disclosure relating to Green Credits. That does not turn Green Credits into RECs or carbon offsets. Report each instrument under its governing definition and do not use one label for all three.

The industrial CCTS guide explains the carbon-market distinction.

What should the audit-ready evidence pack contain?

Organise one controlled folder per reporting year:

1. boundary memo listing entities, sites, meters and consolidation method;
2. energy-source register and approved unit-conversion factors;
3. DISCOM bills, open-access schedules, PPA invoices and fuel records;
4. solar generation, import and export meter extracts;
5. calibration certificates and data-quality exception log;
6. contracts allocating electricity and environmental attributes;
7. REC issuance, transfer and retirement evidence where applicable;
8. monthly reconciliation from source data to general ledger and disclosure;
9. renewable numerator and total-energy denominator workbook;
10. preparer, reviewer and accountable management sign-offs;
11. supplier questionnaires and the exact responses issued;
12. change log for restatements, estimates and methodology updates.

How should supplier requests be answered?

Ask the customer for its boundary, period, unit, methodology, evidence threshold and assurance status. Separate measured data from estimates and disclose exclusions. For shared meters, explain and approve allocation logic.

What accounting and legal caveats apply?

Energy evidence does not determine ownership, revenue recognition, lease accounting, GST or tax depreciation. PPAs, certificates and credits require separate accounting analysis.

SEBI requirements can be amended, and industry standards may prescribe additional data controls. Listed entities and suppliers should consult current circulars, LODR requirements and professional advisers. This article is not securities-law, accounting, assurance or environmental-claims advice.

FAQ

Is an EPC commissioning certificate enough to prove renewable consumption?

No. It proves an installation milestone, not reporting-period energy consumed. Use meters, bills, export data and attribute records.

Can exported rooftop solar count as the factory’s renewable consumption?

Not automatically. Exported energy is not consumed on site. Any separate claim depends on settlement and attribute ownership under the chosen framework.

Are value-chain BRSR disclosures mandatory in FY2025-26?

SEBI’s March 2025 circular describes value-chain ESG disclosure as voluntary from FY2025-26 for the top 250 listed entities. Customer contracts can still require information.

Does buying carbon credits increase renewable-energy percentage?

No. Carbon credits are denominated in emissions outcomes, not renewable electricity consumed. Keep the disclosures separate.

What is the most important double-counting control?

A lot-level register linking each MWh to meters, contracts, certificates, buyer, reporting entity and claim status provides the clearest preventive trail.

Sources

• SEBI: Annexure I—Format of BRSR Core
• SEBI: BRSR Core framework and ESG disclosures for value chain, July 2023
• SEBI: Assessment or assurance, value-chain disclosures and Green Credits, March 2025

Confirm the current SEBI framework and the customer’s reporting methodology before submitting data or environmental claims.