Duke Farms | A center of the Doris Duke Foundation

Sustainability in Practice

Duke Farms is a living lab for nature-positive, carbon-negative operations, connecting land stewardship, energy, buildings, biodiversity, water, waste, food systems, agriculture, fleet and equipment, and public learning.

  • 2,700 acresRestoring biodiversity, practicing regenerative agriculture, and sequestering carbon campus-wide
  • 100+ buildingsBuilt environment
  • 1.799 MW DCTwo solar arrays
  • 800 kW / 1.6 MWhBattery storage size

Living lab position

What does sustainability mean at Duke Farms?

Duke Farms is more than a destination. It is a living lab where conservation science, sustainable operations, land stewardship, convening, and public learning reinforce one another. Across our campus, the work of restoration, clean energy transition, wildlife conservation, and climate action is made visible through daily operations—from land, water, buildings, and agriculture to fleet, equipment, and visitor experience. In this way, Duke Farms demonstrates practical strategies that reduce emissions, restore ecological function, enhance biodiversity, sequester carbon, and help others imagine and implement a nature-positive, carbon-negative future.

At a glance

How does Duke Farms model sustainability in practice?

Duke Farms treats operations as part of its conservation mission. The way the property manages energy, buildings, land, water, materials, agriculture, food systems, fleet and equipment, and public learning is part of the model. Energy was one of the first areas Duke Farms focused on, and other sustainability pillars are being added and strengthened over time.

Why operations matter to conservation

At Duke Farms, everyday operations become a form of demonstration: they are sustainable, reduce carbon emissions, restore ecological function, and make practical climate and conservation strategies visible.

Duke Farms sustainability areas and operating approaches
AreaDuke Farms approach
LandRestore ecological function and beauty, improve soil health, and support biodiversity.
EnergyGenerate clean electricity, conserve energy, electrify systems, eliminate fossil fuel use, and pursue emissions reductions at the lowest possible cost.
BuildingsAlign retrofits, master planning, electrification, and capital budgeting with carbon emissions reduction goals, overall sustainability, and the lowest possible cost.
BiodiversityPut biodiversity first while connecting habitat work with climate resilience and carbon sequestration.
WaterManage water use, water quality, stormwater, wastewater, wetlands, and watershed health.
Fleet and EquipmentReduce emissions from vehicles, equipment, charging infrastructure, and operating choices at the lowest possible cost.
Agriculture / AgroecologyPractice regenerative agriculture, healthy food production, soil stewardship, and closed-loop operations.
WasteMinimize landfill waste through reuse, composting, responsible procurement, and coordinated operations.
LearningMake sustainable operations visible through interpretation, convening, proactive engagement, and peer learning.

Key takeaways

  • Duke Farms treats operations as part of its conservation mission.
  • Sustainability work spans land, energy, buildings, water, fleet and equipment, waste, agriculture, biodiversity, and public learning.
  • Energy was one of the first focus areas; the broader pillars are being added and strengthened over time.
  • The campus functions as a living lab where strategies are tested, documented, monitored, and shared.
  • The goal is not only to reduce harm, but to restore ecological function and demonstrate replicable models at the lowest possible cost.
  • This work advances the Doris Duke Foundation's commitment to a more sustainable future.

The model

How does Duke Farms turn values into measurable action?

The operating model follows a simple discipline: set clear goals, reduce harm, restore ecological function, test practical solutions, document and monitor results, and share what works. This approach changes what Duke Farms does operationally every day, and how decisions are made. It also uses a phased approach to sustainability enhancements over time, since several steps may be needed to achieve demanding goals at the lowest possible cost. Duke Farms intentionally favors strategies and solutions that others can replicate beyond our own borders.

  1. Set Goals

    Set clear, actionable goals

    Set clear goals, build a baseline across energy, buildings, land, water, materials, fleet and equipment, agriculture, and operations, and define the metrics and cost trade-offs needed to act.

  2. Reduce

    Reduce harm

    Prioritize conservation, efficiency, greenhouse gas emissions reduction, and lower-impact operating choices.

  3. Restore

    Restore ecological function

    Use restoration, long-term stewardship and adaptive management to restore ecological function and support biodiversity.

  4. Test

    Test practical solutions

    Use the campus as a living lab for applied research, clean energy, building systems, fleet and equipment, and stewardship practices.

  5. Monitor

    Document and monitor

    Track results, compare with goals, revisit assumptions, and adapt as technology, climate conditions, costs, and operating needs change.

  6. Share

    Share what works

    Translate campus lessons into public learning, convenings, tools, and peer adoption.

Operations domains

How does Duke Farms manage land, energy, water, agriculture, and operations?

Each domain connects a practical operating need to a broader sustainability outcome, from land stewardship and clean electricity to agriculture, fleet and equipment, public learning, and peer adoption, with cost treated as a real constraint that shapes decisions.

  • Land

    What we do

    Use restoration, long-term stewardship and adaptive management to restore ecological function and support biodiversity.

    Why it matters

    Land management shapes biodiversity, ecosystem function, climate resilience and the long-term health of all natural systems.

    Current initiatives

    Floodplain reforestation, grassland management, habitat restoration, and adaptive management and applied research.

    What others can learn

    Large properties can make land management part of a sustainable operating model rather than a separate conservation project.

  • Energy

    What we do

    Use the Natural Systems Energy Plan (NSEP), Duke Farms' decarbonization plan, to conserve energy, generate clean electricity, and electrify buildings, vehicles, and equipment.

    Why it matters

    The NSEP platform reduces greenhouse gas emissions and supports lower-carbon operations, resilience, and long-term cost control.

    Current initiatives

    Two solar arrays, battery storage, distribution upgrades, EV charging, electrification, and energy monitoring.

    What others can learn

    A decarbonization plan works best when conservation, clean electricity, electrification, storage, and measurement are planned in a comprehensive way and well integrated.

    Explore the NSEP
  • Buildings

    What we do

    Integrate sustainability into all maintenance and long-term capital planning. Sequence conservation, efficiency, controls, electrification, and historic-building retrofits.

    Why it matters

    Buildings use significant energy and shape comfort, maintenance, resilience, preservation, daily operations, and long-term cost.

    Current initiatives

    Cutting edge sustainability standards, adaptive reuse, controls, envelope work, heat pumps, master planning, and capital planning.

    What others can learn

    Historic and operating buildings need phased improvements that align preservation, long-term capital budgeting, and sustainability goals.

  • Biodiversity

    What we do

    Put biodiversity first while tracking how restoration, land management, and carbon sequestration interact.

    Why it matters

    Maximize carbon sequestration without negatively impacting biodiversity.

    Current initiatives

    Native species work, habitat monitoring, restoration metrics, and applied research on biodiversity in peri-urban environments.

    What others can learn

    Nature-positive operations should protect ecological quality first and track carbon as one related outcome.

  • Water

    What we do

    Connect water use, water quality, stormwater, wastewater, wetlands, and watershed health to operations.

    Why it matters

    Water decisions affect floodplain function, habitat, resilience, operations, and the Raritan River watershed.

    Current initiatives

    Water conservation, stormwater management, wastewater management, wetland stewardship, floodplain restoration, and water-quality monitoring.

    What others can learn

    Water systems can be managed as infrastructure, habitat, and resilience work at the same time.

  • Waste

    What we do

    Reduce, reuse, compost, recover materials, and make procurement choices that avoid waste upstream.

    Why it matters

    Materials decisions show up in events, construction, visitor services, maintenance, and food operations.

    Current initiatives

    Waste diversion, composting, reuse, purchasing standards, and event operations.

    What others can learn

    Waste reduction works best when procurement, events, food service, facilities, and agricultural operations are coordinated.

  • Agriculture / Agroecology

    What we do

    Practice agroecology, regenerative agriculture, soil stewardship, composting, and healthy food production.

    Why it matters

    Agricultural operations connect land stewardship, food systems, biodiversity, soil health, and visitor understanding.

    Current initiatives

    Regenerative practices, conservation grassland grazing, compost use, healthy food production, soil monitoring, and closed-loop material flows.

    What others can learn

    Agriculture can connect sustainable operations with ecological restoration and healthy food systems.

  • Food Systems

    What we do

    Connect healthy foods, sourcing, composting, visitor education, and cafe operations to sustainability values.

    Why it matters

    Food systems make material flows visible and connect daily choices to land, health, and operations.

    Current initiatives

    Healthy foods, composting, responsible sourcing, reusable materials, and food-waste reduction.

    What others can learn

    Cafe and event practices can turn daily choices into visible sustainability lessons.

  • Fleet and Equipment

    What we do

    Reduce emissions from fleet vehicles, tractors, heavy equipment, charging infrastructure, and operating choices.

    Why it matters

    Vehicles and equipment shape campus carbon emissions, maintenance decisions, access, and public-facing infrastructure.

    Current initiatives

    Public EV charging, fleet charging, vehicle conversion, equipment planning, and charging data.

    What others can learn

    Fleet and equipment planning can reduce emissions while supporting the practical work of the site.

Case studies

What can other campuses learn from Duke Farms?

Each story connects a visible campus project to an operating problem, a sustainability result, and a transferable lesson.

Energy

Solar and battery storage as an operating platform

Clean energy transition

Problem
Duke Farms needed to reduce greenhouse gas emissions while preparing for future electrified load at the lowest possible cost.
Approach
Pair on-site solar with battery storage, distribution upgrades, and energy monitoring.
Result
Significant and well quantified progress has been made on Duke Farms' sustainable energy goals; the campus can compare annual generation, hourly service, load matching, and resilience value. See the NSEP.
What we learned
Clean electricity works best as an operating platform, not a standalone technology purchase. A high level of solar energy use cannot be achieved without integrated use of stationary electricity storage (batteries).
Status
Ongoing
Related systems
Energy, Buildings, Fleet and Equipment, Resilience
Buildings

Building retrofits across a historic operating campus

Sustainable building operations

Problem
Historic and active buildings require sustainability improvements without disrupting daily use.
Approach
Sequence conservation, controls, envelope work, electrification, adaptive reuse, master planning, and capital planning.
Result
Building work can be prioritized by emissions, reliability, mission need, and implementation readiness.
What we learned
A retrofit plan should match equipment timing with clean electricity, operations needs, and long-term capital budgeting.
Status
Ongoing
Related systems
Buildings, Energy, Public Learning
Land and Biodiversity

Nature-positive accounting beyond operational carbon

Habitat restoration

Problem
Carbon-negative work needs to protect ecological quality, not only count carbon.
Approach
Connect biomass carbon, soil carbon, biodiversity, water, and restoration indicators.
Result
Operational carbon goals can be linked to habitat quality, soil health, and watershed resilience.
What we learned
Biodiversity comes first; carbon sequestration and biodiversity can reinforce each other, but sequestration should not override ecological function.
Status
Ongoing
Related systems
Land, Biodiversity, Water
Public Learning

Public learning through visible operations

Visitor learning and access

Problem
Visitors need clear ways to connect visible campus projects with Duke Farms' sustainability goals.
Approach
Use proactive engagement, interpretive signage, public EV charging, and convening work as learning tools.
Result
Operational projects become tangible examples for visitors and peer institutions.
What we learned
The strongest learning moments connect a visible project to an operating problem, a sustainability result, and a transferable lesson.
Status
Ongoing
Related systems
Learning, Fleet and Equipment, Energy
Water

Water and stormwater management as resilience work

Water and watershed health

Problem
Stormwater, wastewater, wetlands, floodplains, and irrigation all affect the health and resilience of the site.
Approach
Manage water through watershed stewardship, conservation, wastewater management, green infrastructure, floodplain restoration, and monitoring.
Result
Water work supports habitat, resilience, visitor access, and downstream watershed health.
What we learned
Water systems should be treated as ecological and operational infrastructure.
Status
Ongoing
Related systems
Water, Land, Biodiversity
Waste

Waste reduction and materials management

Waste and materials

Problem
Materials choices create impacts across events, purchasing, food service, maintenance, and construction.
Approach
Coordinate reuse, composting, responsible procurement, vendor expectations, and event practices.
Result
Waste can be reduced before materials enter the site and diverted after use.
What we learned
Waste reduction is strongest when procurement and operations are managed together.
Status
Ongoing
Related systems
Waste, Food Systems, Buildings

Related resources

Resources for learning and implementation.

These resources help connect the campus operating model to public learning, planning, and implementation.

Climate action

Climate Toolkit Alignment

Explore Duke Farms’ alignment and progress across the Climate Toolkit’s 35 goals and nine focus areas.

View Climate Toolkit Alignment
Campus plan

Natural Systems Energy Plan

Duke Farms' decarbonization roadmap for conservation, clean electricity, electrification, and measurement.

View Natural Systems Energy Plan
Energy system

Campus energy map

Static and interactive map showing solar, battery storage, switchgear, and campus electrical circuits.

View Campus energy map
Dashboard

Carbon Dashboard

A companion dashboard for emissions, sequestration, and carbon accounting as that work is published.

Open resource
Visitor learning

Plan a visit or group visit

Use Duke Farms' visit resources to plan a visit, request a group visit, or explore field learning.

Open resource
Engagement

Mission-aligned convenings

Organizations can submit inquiries for convenings and events that connect to conservation, sustainability, and public impact.

Open resource
General inquiry

Contact Duke Farms

Share questions, suggestions, or partnership ideas through Duke Farms' general contact channels.

Open resource

FAQ

Common questions.

Is Duke Farms carbon-negative?

Duke Farms is working toward carbon-negative operations by reducing emissions, expanding clean energy, and connecting land stewardship with carbon and ecological metrics.

What does nature-positive mean at Duke Farms?

Nature-positive means operations should improve ecological function, biodiversity, habitat quality, watershed health, and climate resilience rather than only reducing harm.

How does Duke Farms use clean energy?

Duke Farms uses on-site solar, battery storage, energy monitoring, efficiency work, and electrification planning to reduce greenhouse gas emissions and support resilient operations.

How does Duke Farms measure sustainability progress?

Progress is measured through operating indicators such as energy use, solar generation, emissions reductions, restoration work, building improvements, fleet and equipment changes, and nature-positive metrics, compared with detailed goals.

Can other organizations learn from Duke Farms' operations model?

Yes. Duke Farms intentionally uses strategies that can be replicated by others. The strategies are intentionally generic, and can be customized and applied to any type of property or operation.

How can I learn more, request a tour, or propose a convening?

Visitors can use Duke Farms' visit resources for group visits and field learning, mission-aligned organizations can submit convening inquiries, and readers with suggestions or partnership ideas can contact Duke Farms directly.

How does sustainability connect to public learning?

Public learning makes the work visible. Interpretation, proactive engagement, public charging, programs, and convenings connect campus operations to learning and peer adoption.

How is Duke Farms connected to the Doris Duke Foundation?

Duke Farms is a center of the Doris Duke Foundation and advances the foundation's commitment to a more creative, equitable, and sustainable future through conservation, restoration, public learning, and sustainable operations.