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Published document · Version 1.2 · May 2026 (updated July 2026)

The PEGS ESG Framework Whitepaper

Published by PEGS Standards & Systems Private Limited. To save a copy, use your browser’s print or save-as-PDF function — this page is print-formatted.

The PEGS ESG Framework Whitepaper

Document Ref: PEGS/PROD/WHT/v1.2/2026
Template Version: 1.0 (May 2026)
Methodology Version: ESG-900 v1.0
Status: Technical Whitepaper
Prepared by: PEGS Standards & Systems Pvt. Ltd.
Date: 15 May 2026

Executive Summary

PEGS transforms sustainability into measurable, verified, and rewardable outcomes through a unified ESG data infrastructure.

The PEGS ESG Framework is a proprietary 900-point methodology for scoring individual real-estate assets. It measures a specific apartment, building, plot, or development, rather than a company, portfolio, or stated policy. The framework converts asset-level environmental, social, and governance evidence into a standardised score that can be assessed by SOPHIE, certified human assessors, third-party audit firms, or partner-embedded tools licensed by PEGS.

The framework is structured around 3 pillars, 15 parameters, and 44 indicators. Each pillar carries 300 points, each parameter carries 60 points, and each indicator has a defined formula, weight, and normalisation rule. Every issued score is anchored on BASTION, PEGS' permissioned blockchain, with the assessor's UEIN, methodology version, data tier, and SHA-256 hash of the score record.

This whitepaper explains the framework architecture, the origin and rationale for the selected indicators, the scoring method, and the reasons PEGS uses asset-level measurement as the base unit of ESG accountability.

1. Purpose of the Framework

Most ESG reporting is entity-level. It describes company policies, portfolio-level emissions, programme commitments, or governance practices. These disclosures are necessary, but they do not answer one operational question with precision: how sustainable is this physical asset?

Real estate is a durable, capital-intensive, high-impact asset class. Buildings consume energy and water, generate waste, affect local habitats, shape occupant wellbeing, and depend on reliable governance controls. A single building can perform materially better or worse than another building owned by the same entity. PEGS therefore uses the asset as the measurement unit.

The PEGS ESG Framework has four technical objectives:

  1. Convert asset-level ESG performance into a reproducible score.
  2. Preserve comparability across real-estate asset types through normalised indicators.
  3. Separate score quality from score value through data-quality assessment tiers.
  4. Make the score auditable by recording methodology version, assessor identity, data tier, and score hash on BASTION.

2. Standard Owner Model

PEGS is positioned as a standard owner, not a SaaS vendor. SOPHIE is one delivery mechanism for the standard, not the standard itself.

The PEGS ESG Framework may be applied through:

  • SOPHIE, PEGS' Sustainability Optimisation and Planning for Holistic Impact and Efficiency engine.
  • Certified human assessors trained by PEGS.
  • Third-party audit firms applying the methodology.
  • Partner-embedded assessment tools licensed by PEGS.

This distinction is central to institutional trust. The framework defines what must be measured, how each indicator is calculated, how the score is normalised, and how assessment quality is recorded. The delivery mechanism determines how evidence is collected, inferred, verified, or audited.

3. Score Architecture

The total score is 900 points.

Pillar Parameters Indicators Points
Environmental 5 18 300
Social 5 14 300
Governance 5 12 300
Total 15 44 900

Each parameter carries 60 points. Indicator weights are equally distributed within each parameter and sum to 60 — a parameter with four indicators carries 15 points per indicator; a parameter with one indicator carries all 60. This equal-distribution rule is a core PEGS doctrine (ESG-900 Formula Register §2). The digit at the end of every parameter code is the indicator count and is part of the code. For example, EMEC4 has four indicators and GMRC1 has one indicator.

4. Normalisation Logic

Every indicator is converted to a bounded value x on [0,1] before weighting.

For positive indicators, where higher performance is better:

x = (Actual - Min) / (Max - Min)

For negative indicators, where lower performance is better:

x = 1 - (Actual - Min) / (Max - Min)

Values outside [0,1] are clipped. The weighted contribution of each indicator is:

Score_ij = w_ij * x_ij

The total score is:

ESG_total = sum(w_ij * x_ij)
ESG_norm  = ESG_total / 900

Thresholds such as PlanetaryAlignedEUI, MaximumTolerableEUI, PlanetaryAlignedCI, MaximumTolerableCI, and incident thresholds are defined through PEGS planetary threshold governance. They are not set by geography, climate zone, jurisdiction, local peer average, or regional regulatory minimum. Geography, climate zone, and jurisdiction may be recorded as non-scoring metadata, but they must not contribute to the PEGS score or alter normalisation.

5. Indicator Origin and Rationale

PEGS is referenced against global ESG and real-estate sustainability practice, including GRI, BRSR, TCFD, GRESB, LEED, and BREEAM. It is not derived from any one framework and is not modified for local or regional requirements. Its indicator design reflects three filters:

  • Asset materiality: the indicator must be observable at asset level.
  • Decision utility: the indicator must support financing, ownership, management, or improvement decisions.
  • Auditability: the indicator must be measurable, inferable with confidence, or document-verifiable.

5.1 Environmental Rationale

Environmental indicators measure physical resource use, emissions intensity, waste flows, and ecological condition. These are selected because real estate has direct operational impacts through energy, water, waste, land cover, and emissions.

Code Parameter Rationale
EMEC4 Energy Consumption Energy use is a primary driver of operating cost, carbon exposure, and retrofit priority. EUI, renewable share, certification, and metering collectively measure consumption, decarbonisation, design quality, and operational visibility.
EMGH3 GHG Emissions Carbon intensity translates energy and fuel use into climate impact. Scope coverage and reduction trend test whether the asset is moving from partial accounting to full emissions accountability.
EMWC4 Water Consumption Water intensity, recycling, harvesting, and water stress reflect both consumption efficiency and local resource pressure.
EMWG3 Waste Generation Waste intensity, recycling rate, and landfill diversion measure circularity at the level where operational waste is generated and handled.
EMNH4 Natural Habitat State Green cover, biodiversity, restoration investment, and permeability measure the asset's relationship with ecological systems and urban heat, runoff, and habitat conditions.

5.2 Social Rationale

Social indicators measure how the asset affects people who occupy, operate, or live around it. PEGS uses asset-level social indicators because social performance in real estate is experienced through safety, affordability, access, community connection, and occupancy stability.

Code Parameter Rationale
SMOS2 Occupant Satisfaction Occupant feedback is a direct signal of lived asset quality. Response rate protects the score from relying on thin survey evidence.
SMHS2 Health & Safety Incidents Incident severity measures harm; training coverage measures prevention capacity. Together they connect outcomes with controls.
SMCI3 Community Initiatives Local employment, community investment, and programme frequency measure whether the asset contributes to its surrounding social economy.
SMAI2 Affordability Index Housing cost relative to income and access to public infrastructure measure whether the asset is socially usable, not only technically efficient.
SMSS5 Social Stability Retention, income balance, conflict incidence, equal access, and crisis adaptability measure continuity and resilience in the asset's social environment.

5.3 Governance Rationale

Governance indicators measure whether the asset's ESG performance can be trusted, repeated, and improved. PEGS gives governance equal pillar weight because asset-level sustainability fails without compliance, reporting, transparent controls, and accountable operation.

Code Parameter Rationale
GMRC1 Regulatory Compliance Compliance audit pass rate establishes the asset's baseline legal and operational conformity.
GMEV1 Ethics Violations Weighted violation severity captures conduct risk and protects against treating all incidents equally.
GMGS5 Governance Stability Leadership continuity, policy consistency, audit regularity, crisis response, and regulatory adaptability measure operating discipline over time.
GMSR1 Sustainability Reporting Framework coverage measures whether the asset's ESG information can interoperate with recognised disclosure requirements.
GMTA4 Transparency & Accountability Disclosure completeness, independent audit presence, grievance resolution, and timeliness measure the reliability of external trust.

6. Assessment Tiers

Assessment tiers measure data quality and verification depth. They are not score bands.

Tier Cadence Actual Data Requirement Purpose
Indication Monthly auto-refresh, 10th of month 0% actual AI-inferred starting view included with onboarding.
Basic Assessment Annual plus four quarterly sub-assessments At least 30% actual Owner-verified, document-backed assessment.
Certification 5-year validity, annual check-in At least 70% actual; 90-95% confidence Third-party audit with BASTION certificate and PEGS Certified badge.

Colour, Metal, and Gem are not assessment tiers. They are rewards, loyalty, or certification labels depending on the PEGS layer in which they are used. The assessment tiers are Indication, Basic Assessment, and Certification.

7. Score Interpretation

Score Range Tier Significance
750-900 Platinum Top 5%; institutional investment grade
600-749 Gold Strongly ESG-compliant; green-financing eligible
450-599 Silver Above-average; improvement roadmap available
300-449 Bronze Baseline compliance; significant headroom
0-299 Unrated Insufficient data or below threshold

Score tier and data-quality tier must be read together. A high score with weak evidence is not equivalent to a high score with third-party audited evidence. PEGS therefore records both the score and the data tier.

8. Trust Infrastructure

Every score record is anchored on BASTION with:

  • Assessor UEIN.
  • Methodology version: ESG-900 v1.0.
  • Assessment tier.
  • Data tier achieved.
  • SHA-256 hash of the score record.

BASTION is a permissioned blockchain. Public PEGS material should describe it as permissioned and India-sovereign without naming the underlying implementation framework or hosting provider.

9. Strategic Differentiation

PEGS creates a measurement layer between operational asset data and external ESG reporting frameworks. It does not replace GRI, BRSR, ESRS, ISSB, GRESB, TCFD, CDP, NABERS, or other reporting systems. Instead, it converts asset-level facts into a structured evidence base that can support those systems.

The framework's strategic advantages are:

  • Asset specificity: measures physical assets, not only entities.
  • Versioned methodology: locks formula logic to ESG-900 v1.0.
  • Data-quality transparency: separates evidence depth from score outcome.
  • Multiple delivery mechanisms: supports AI, human assessor, audit firm, and partner implementations.
  • Interoperability: maps asset-level indicators to recognised global reporting requirements.

10. References