ESG Accounting Services — Carbon & Sustainability Accounting | Nainit Savla & Associates

ESG Accounting

Q: How is carbon accounting different from financial accounting?

Financial accounting records monetary flows in rupees under prescribed standards. Carbon accounting records GHG emissions in tCO₂e using activity data and emission factors — requiring operational records, scientific conversion factors, and consistent methodology to be credible and auditable.

Q: What data sources are needed for GHG emissions accounting?

Scope 1: fuel purchase records and process data. Scope 2: electricity bills with units consumed and renewable energy information. Scope 3: supplier data, business travel records, freight data, and customer product use data — often requiring spend-based or industry-average factors where primary data is unavailable.

Q: What emission factors should Indian companies use for GHG accounting?

CEA annual grid emission factors for Scope 2 electricity. IPCC or MoEFCC factors for Scope 1 fuel combustion. GHG Protocol supplementary guidance for Scope 3. BRSR Core requires disclosure of specific emission factors used and their source.

Q: How should ESG data be collected and stored for audit readiness?

ESG data must be traceable to primary source documents, consistent across years, complete across all operations and time periods, and accurately calculated with documented methodology. A structured data management system with assigned data owners is essential.

Q: Does ESG accounting affect a company's financial statements?

Currently separate, but changing. Climate risks should increasingly appear in financial statements through impairment, provisions, and contingent liabilities. ISSB's IFRS S1 and S2 are expected to integrate sustainability disclosures into mainstream financial reporting.

ESG accounting is the systematic identification, measurement, recording, and reporting of a company's environmental, social, and governance impacts in quantitative terms — analogous to financial accounting but applied to sustainability dimensions. Just as financial accounting provides a structured, verifiable picture of a company's economic performance, ESG accounting provides a structured, verifiable picture of its sustainability performance. Accurate ESG accounting is the foundation of credible ESG reporting — without it, sustainability disclosures are anecdotal, unauditable, and unreliable for the investors, regulators, and stakeholders relying on them.

GHG Emissions Accounting

Quantification of Scope 1, 2, and 3 greenhouse gas emissions using the GHG Protocol methodology — covering fuel combustion, process emissions, purchased electricity, supply chain emissions, and business travel, expressed in tCO₂e.

Energy Consumption Accounting

Measurement and recording of total energy consumed from all sources — fuel, grid electricity, renewable energy — with intensity ratios (energy per unit of revenue or production) for year-on-year trend analysis.

Water Accounting

Water withdrawal, consumption, and discharge accounting by source and quality — freshwater, groundwater, municipal supply — with water intensity metrics and identification of operations in water-stressed areas.

Waste Accounting

Quantification of waste generated by type and disposal method — recycled, reused, landfilled, incinerated, and hazardous waste — supporting circular economy metrics and regulatory compliance reporting.

Social Expenditure Accounting

Structured accounting of CSR expenditure, employee welfare spending, occupational health and safety costs, training and development investment, and community development expenditure for BRSR and GRI social disclosures.

ESG Data Management System

Design and implementation of an ESG data collection and management system — defining data owners, collection processes, verification checks, and reporting templates to ensure accurate, audit-ready ESG data year-round.

Why ESG Accounting Is Different from Traditional Accounting

Financial accounting benefits from decades of standardisation — prescribed formats, uniform accounting standards, mandatory audit, and well-understood metrics. ESG accounting is still maturing — multiple competing frameworks, no single mandatory global standard, significant data collection challenges (especially for Scope 3 emissions), and a lack of established audit practices create complexity that financial accounting does not face. However, the direction is clear: ESG data quality standards are rising, third-party assurance is becoming mandatory, and the tolerance for anecdotal or unverified ESG claims is falling rapidly.

Our ESG accounting service builds the data foundation that supports ESG audit, framework-compliant reporting, and third-party assurance — ensuring every ESG disclosure is backed by traceable, verifiable data.

Key ESG Metrics We Help Quantify

Total GHG emissions (Scope 1, 2, 3) in metric tonnes of CO₂ equivalent (tCO₂e)
GHG emissions intensity per rupee of revenue, per unit of production, or per employee
Total energy consumption (GJ or kWh) — renewable vs non-renewable split
Water withdrawal and consumption (kilolitres) by source — freshwater stress assessment
Waste generated by hazardous and non-hazardous classification and disposal route
Employee safety metrics — LTIFR (Lost Time Injury Frequency Rate), fatalities, near misses
Percentage of women in workforce, in management, and on the board
CSR and social investment expenditure with beneficiary reach data

Frequently Asked Questions

How is carbon accounting different from financial accounting?

Financial accounting records monetary flows — revenues, costs, assets, and liabilities — in rupee terms under prescribed accounting standards (Ind-AS or AS). Carbon accounting records greenhouse gas emissions — primarily from fuel combustion, industrial processes, and purchased energy — in physical units (tCO₂e) using emission factors and activity data rather than monetary values. Carbon accounting requires access to operational data (fuel consumption records, electricity bills, production data) and the application of scientifically determined emission factors (from sources like the IPCC, IEA, or India's own national emission factor databases) to convert activity data into CO₂ equivalent tonnes. Like financial accounting, it requires consistent methodology, clear documentation, and external verification to be credible.

What data sources are needed for GHG emissions accounting?

For Scope 1 (direct emissions): fuel purchase records or meter readings for all fuel types used on-site (diesel, petrol, LPG, natural gas, coal), process emission data for industrial processes, and fugitive emission data (refrigerant top-ups, etc.). For Scope 2 (indirect emissions from energy): electricity bills for all metered connections with units consumed, and information on whether any renewable energy certificates or open access renewable power is purchased. For Scope 3 (value chain emissions): supplier activity data or spend data for upstream purchases, business travel records, employee commute surveys, logistics and freight data, and customer product use and end-of-life data for downstream Scope 3. Scope 3 data collection is the most challenging — requiring coordination across the supply chain and the use of spend-based or industry-average emission factors where primary data is unavailable.

What emission factors should Indian companies use for GHG accounting?

Indian companies should use the most appropriate and current emission factors available: for electricity consumption (Scope 2), the Central Electricity Authority (CEA) publishes annual CO₂ emission factors for the Indian electricity grid — these should be used for market-based or location-based Scope 2 calculations. For fuel combustion (Scope 1), the IPCC default emission factors or India-specific factors published by the Ministry of Environment, Forest and Climate Change (MoEFCC) are commonly used. For Scope 3, the GHG Protocol's supplementary guidance provides emission factors by spend category. BRSR Core requires disclosure of the specific emission factors used and their source — transparency in methodology is as important as the calculation itself.

How should ESG data be collected and stored for audit readiness?

For ESG data to be audit-ready, it must be: (a) traceable — every ESG metric must be traceable back to a primary source document (fuel bill, electricity meter reading, waste manifest, HR record); (b) consistent — the same methodology must be applied each year to enable year-on-year comparisons; (c) complete — all relevant operations, geographies, and time periods must be included in the data boundary; and (d) accurate — calculations must be documented and verifiable using the stated emission factors and methodology. We recommend a structured ESG data management system — whether a simple Excel-based template or a dedicated sustainability software platform — that assigns data collection responsibility to specific individuals and maintains supporting documentation for each data point.

Does ESG accounting affect a company's financial statements?

ESG accounting and financial accounting are currently separate exercises for most Indian companies — ESG data appears in sustainability reports, not in audited financial statements. However, this is changing. Climate-related risks and opportunities are increasingly expected to be disclosed and quantified in financial statements — through impairment assessments, provisions, stranded asset write-downs, and contingent liabilities related to carbon pricing or environmental regulation. The ISSB (International Sustainability Standards Board) has issued IFRS S1 and IFRS S2 standards for sustainability-related financial disclosures that are expected to become part of mainstream financial reporting. Indian companies with significant climate transition risk or physical climate risk should begin integrating ESG considerations into financial statement disclosures proactively.

Build the ESG Data Foundation Your Reporting Needs

Structured ESG accounting — GHG emissions, energy, water, waste, and social metrics — for BRSR, GRI, and global sustainability reporting.

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