Expertise

From a single asset to a global portfolio.

We tackle complex challenges across the built environment to deliver high-performance, future-ready buildings. Solve for one asset, or take a programmatic approach tailored to your portfolio mix, investment strategy, hold periods and geographies.

Asset level

Targeted solutions for one building

Audits, upgrades, certifications and funding that lower operating costs, strengthen NOI and support value at exit.

Portfolio level

Programs that scale across every asset

One consistent approach across asset types, markets and risk profiles, prioritized against your capital plan.

01 · Assess

Strategy

Your blueprint for what's possible. We build the business case, align stakeholders on capital priorities and set a roadmap tied to hold periods and value-add opportunities.

Capital Planning & Regulatory Risk

Prioritize improvements against hold periods, equipment life and capital budgets, with compliance action plans that keep each asset ahead of performance standards and penalties.

Sustainability Advisory

Set realistic goals and clear net zero pathways, with ROI in mind.

ESG Program Management

Integrate sustainable frameworks at every stage of your business to drive value and engagement, from investor to tenant.

Climate Resilience

Understand and mitigate physical climate risks, protecting assets against damage, disruption and liability.

Tenant Engagement

Bring tenants into the program to improve operations, data sharing and retention.

Workshops & Training

Give your team the materials and expertise to build program buy-in.

Case study · Portfolio

Navigating Net Zero Across a Global Portfolio

A global real estate advisor needed one decarbonization program for assets spread across 13 cities and 3 continents.

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13

cities across 3 continents in one portfolio-wide program

02 · Assess

Audits

Find the value before you commit capital. Audits, benchmarking and due diligence show where investment will pay back and where risk sits.

See how audits drive asset value →

Energy Audits

ASHRAE Level 1, 2 and 3 audits that identify efficiency measures with the costs, savings and paybacks to act on them.

Decarbonization Audits

Map the measures, timing and costs to cut emissions and meet carbon targets, asset by asset.

Assessment & Benchmarking

Compare performance across your portfolio to see which assets to address first.

Pre-Acquisition & Sale Preparation

Uncover performance risk and upside before you buy, and position assets before you sell.

Case study · Asset

How an Energy Performance Certificate Put a London Deal at Risk

Pre-acquisition diligence caught an EPC issue on a London acquisition before it became a cost.

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£1M

in costs avoided on the acquisition

Free download

Pre-Acquisition Due Diligence Checklist

The building performance questions to answer before you close.

Get the checklist →

03 · Deliver

Engineering

Design the solution. Our in-house engineers turn opportunities into investment-ready projects built around performance, cost and return. Technology and vendor agnostic.

Feasibility Studies

Test the technical and financial case for major capital projects before you commit.

Sustainable Design & Engineering

Designs that meet performance targets and hold up to your cost and return objectives.

Energy Efficiency

Lighting, HVAC, controls and envelope measures that cut operating costs.

Electrification

Plan and design the move off fossil fuel systems, timed to equipment life and regulation.

Project Development & Optimization

Take projects from concept to investment-ready scope, then refine them for cost, performance and return.

Case study · Portfolio

Senior Living Portfolio Achieves $38M Value Increase with Energy Upgrades

Energy upgrades across a senior living portfolio cut costs by nearly $3M a year and lifted portfolio value.

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$38M

increase in portfolio value

04 · Deliver

Financing

Maximize capital efficiency. Our financial engineering layers incentives, tax credits, debt and third-party capital across the capital stack so projects pencil with less of your own equity.

Rebates, Incentives & Grants

Find and secure the utility and government programs each project qualifies for.

Tax Credits

Capture federal and local credits that improve project economics.

Green Financing

Structure debt and financing that fund improvements without straining the capital plan.

ESPC & Performance Contracting

Pay for upgrades from guaranteed savings rather than upfront capital.

Green Bonds

Access dedicated capital for qualifying portfolio-wide programs.

As-a-Service

Energy-as-a-Service and other off-balance-sheet models deliver upgrades for a predictable fee with no upfront capital.

Case study · Municipal solar

A Replicable Model for Municipal Solar in Chestertown, MD

GreenGen combined a $1M state grant, a $1.35M federal tax credit and low-cost municipal bond financing so the town can own its 2.2 MW solar project and keep every dollar of savings.

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~$400K

expected annual financial benefits to the town

05 · Deliver

Implementation

Turn strategy into action. We take ownership of results and deliver projects on a turnkey basis, aligned with design intent and measured against the outcomes you expect.

How we deliver

Delivery Models to Fit Your Needs

Choose the level of support that fits your team, from full turnkey delivery to expert oversight of your own contractors.

Turnkey Construction

Project Management

Strategic Procurement

Owner's Representation

Retrofits

Upgrade HVAC, lighting and other ECMs in occupied buildings with minimal disruption.

Distributed Generation

Renewables, microgrids, cogeneration and storage that lower energy costs and strengthen resilience.

Energy Supply Procurement

Secure power and gas contracts that reduce cost and price risk.

Commissioning &
Retro-Commissioning

Confirm new systems run as designed and tune existing ones to recover lost performance.

Metering

Install and manage meters that give accurate, asset-level data.

Case study · Portfolio

Reducing Costs and Carbon Emissions with LED Retrofits

GreenGen retrofitted LED lighting across 130 properties for a global real estate firm in less than a year.

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$3.3M

in annual savings across 130 properties

06 · Verify

Certifications

Prove it. Third-party certifications validate asset performance and support leasing, financing and investor objectives.

Explore BREEAM services →

Green Building Certifications

LEED, BREEAM, WELL and other leading standards, managed from assessment through award.

Building Rating Schemes

ENERGY STAR, EPC and other rating schemes that benchmark performance for tenants, lenders and regulators.

Portfolio Certification Programs

Certify dozens of assets at once with one consistent process and timeline.

Case study · Portfolio

EQT Real Estate Advances U.S. Industrial Portfolio Performance with BREEAM

GreenGen took EQT Real Estate's U.S. industrial portfolio through BREEAM certification to advance asset performance at scale.

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62

U.S. industrial assets BREEAM certified

Free download

Green Building Certification Guide

Compare leading certifications and choose the right one for each asset.

Get the guide →

07 · Verify

Reporting & Compliance

Report it. Navigate regulations and disclosure requirements, track results with reliable data and give stakeholders numbers they can trust.

Explore GRESB services →

Regulatory Compliance

Meet evolving regional and global standards, from building performance standards to local laws.

Compliance Pathways

Find the most cost-effective route to meet each standard, from performance targets to alternative compliance options.

Reporting & Disclosure

Communicate portfolio performance through GRESB and investor reporting with confidence.

Impact Reports

Turn portfolio results into clear, stakeholder-ready impact reports.

Data Capture & Visualization

Collect utility and building data in one place and see performance at a glance.

Measurement & Verification

Confirm project savings against the baseline so results hold up to scrutiny.

Case study · Portfolio

How FirstKey Homes Scaled Sustainability with GRESB

GreenGen embedded GRESB across FirstKey's 50,000+ home portfolio, earning a 2-star rating and recovering 4 points after submission.

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50%+

performance improvement across two years

Free download

2026 Benchmarking & BPS Calendar

Every benchmarking and building performance standard deadline for the year in one place.

Get the calendar →

Get started

One asset or an entire portfolio, we'll show you where the value is.

Contact GreenGen today →