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NetZero.GlobalSustainability Consultancy
Path through a sunlit forest — stewardship and long horizons
Our approach

A structured approach to improving efficiency and long-term performance.

Originally proven through the ReThinkMasjid programme — now the backbone of every engagement, from a single building audit to a multi-site decarbonisation roadmap.

Lukasz Szmigiel / Unsplash

Framework

Core Pillars — applied consistently across every sector.

Each pillar names a category of intervention and the actions that sit under it. Sequence and depth differ by sector and asset; the categories don't.

  1. 01

    Fabric First

    Address the building envelope before the systems inside it.

    • Improve insulation
    • Reduce heat loss
    • Enhance thermal performance
  2. 02

    Efficient Systems

    Right-size the plant and control it intelligently.

    • Optimise heating and cooling
    • Improve ventilation strategy
    • Implement zoned operation
  3. 03

    Clean Energy

    Generate on-site and decarbonise the residual demand.

    • Integrate solar PV
    • Reduce reliance on grid energy
    • Support renewable adoption
  4. 04

    Water Efficiency

    Treat water as a carbon and a cost.

    • Reduce water consumption
    • Optimise hot-water systems
    • Improve ablution and washroom design
  5. 05

    Performance

    Measure, monitor and continuously improve.

    • Monitor energy use
    • Track building performance
    • Enable ongoing optimisation
Engagement

How we support — from assessment to delivery.

A predictable five-step engagement model that maps cleanly onto board reporting cycles and capital approval gates.

  1. 01

    Assessment

    • Site visit and building review
    • Analyse energy and water usage
    • Identify inefficiencies across systems
  2. 02

    Performance Diagnosis

    • Review heating, cooling and ventilation
    • Assess building fabric
    • Evaluate water and process usage
  3. 03

    Strategic Roadmap

    • Prioritised list of improvements
    • Phased implementation approach
    • Cost-versus-impact analysis
  4. 04

    Implementation Support

    • Provide technical guidance
    • Coordinate contractors and specialists
    • Support delivery on site
  5. 05

    Monitoring & Optimisation

    • Track ongoing performance
    • Identify further efficiencies
    • Support continuous improvement

Steps overlap in practice — assessment continues during diagnosis, monitoring begins before implementation closes. The sequence is for clarity, not rigidity.

Performance

The dashboard sits behind every engagement.

A centralised view of energy consumption, carbon emissions and operational performance — the evidence base for ongoing optimisation, and the foundation of the future client portal.

Net-Zero Performance Dashboard
2026 → 2030Synced 4m ago
Carbon
−42%
vs 2024 baseline
Energy intensity
112kWh/m²
−31% YoY
Annual spend
£482k
−£186k vs baseline
Renewable share
38%
+22 pts YoY

Carbon trajectory · vs baseline

ModelledTarget

Energy source

Last 12 months

100%Distribution
  • Grid electricity38%
  • Natural gas32%
  • On-site solar PV22%
  • Other renewable8%

Pillar progress

Framework coverage

  • Fabric First92%
  • Efficient Systems74%
  • Clean Energy48%
  • Water Efficiency36%
  • Performance88%

Half-hourly demand profile

Typical weekday · today

Live

Monthly consumption

kWh × 1,000

Emission source breakdown

% reduction modelled by 2030

  • Scope 1428 tCO₂e
    68%
  • Scope 2612 tCO₂e
    55%
  • Scope 31,840 tCO₂e
    22%

Portfolio sites

Energy intensity · ranked best to worst

  • Site 01 · London EC294 kWh/m²−18%On track
  • Site 02 · Manchester108 kWh/m²−12%On track
  • Site 03 · Birmingham126 kWh/m²−4%Watch
  • Site 04 · Bristol118 kWh/m²−9%On track
  • Site 05 · Leeds142 kWh/m²+3%Alert

Recent insights

Anomalies, completions and identified actions

  • HVAC scheduling drift detected — Site 03, weekends running at 60% load2d ago
  • Lighting LED retrofit complete — Site 01 — saving 14 kWh/day1w ago
  • Simultaneous heating + cooling identified in 3 zones — opportunity register updated2w ago

Illustrative dashboard composed from a typical UK estate engagement. Real client data shown under NDA in proposal stage.

Methodology & standards

The standards behind every deliverable.

Our work traces back to recognised international and UK standards. The audit pack, the inventory, the disclosure and the action plan are all built to be defensible — not just to look defensible.

GHG Protocol

GHG accounting · WBCSD / WRI

Greenhouse Gas Protocol — Corporate Standard

The global standard for corporate Scope 1, 2 and 3 emissions accounting — underpins every credible inventory.

ISO 14064

GHG accounting · International Organization for Standardization

ISO 14064-1 — Specification for the Quantification of GHG Emissions

Auditable specification for organisational GHG inventories, used where assurance is required.

ISO 14001

Energy management · International Organization for Standardization

ISO 14001 — Environmental Management Systems

Certifiable EMS framework, often required by enterprise procurement.

ISO 50001

Energy management · International Organization for Standardization

ISO 50001 — Energy Management Systems

Certifiable EnMS framework; ESOS compliance can be evidenced through ISO 50001 certification.

SBTi

Targets · CDP / UN Global Compact / WRI / WWF

Science Based Targets initiative

Global standard for setting credible, science-aligned 1.5°C-compatible emissions-reduction targets.

BREEAM

Buildings · BRE

Building Research Establishment Environmental Assessment Method

UK-led building sustainability assessment — widely required by investors and public-sector procurement.

Passivhaus / EnerPHit

Buildings · Passive House Institute

Passivhaus and EnerPHit Standards

Performance-based standards for new-build (Passivhaus) and retrofit (EnerPHit) ultra-low-energy buildings.

PAS 2035

Retrofit · BSI

PAS 2035 — Retrofitting Dwellings for Improved Energy Efficiency

Mandatory framework for domestic retrofit under government funding; ensures whole-house, risk-managed delivery.

PAS 2030

Retrofit · BSI

PAS 2030 — Installation of Energy Efficiency Measures

Sets the installation requirements for retrofit measures funded under government schemes (works with PAS 2035).

IPMVP

M&V · Efficiency Valuation Organization

International Performance Measurement and Verification Protocol

Global standard for measuring and verifying actual savings against modelled savings post-implementation.

Get in touch

Ready to plan your decarbonisation pathway?

We work with a small number of organisations at any one time. Tell us about your estate, your targets and your timeline.