Executive Summary
Energy as a Service (EaaS) is rapidly transforming how healthcare organizations manage their energy infrastructure. Under this model, a third-party provider finances, installs, operates, and maintains energy systems — from HVAC and lighting to microgrids and solar arrays — while the healthcare organization pays a predictable service fee rather than bearing upfront capital costs. As healthcare facilities face tightening margins, aging infrastructure, sustainability mandates, and an imperative for 24/7 power reliability, EaaS has emerged as a strategic tool that allows hospitals and clinics to redirect capital toward their core mission: patient care.
The global EaaS market was valued at approximately $74–108 billion in 2024–2025, with projections ranging from $145 billion to over $200 billion by 2030–2031 at a compound annual growth rate (CAGR) of approximately 11–13%. Healthcare represents one of the most compelling verticals for this model, given hospitals' extreme energy intensity, capital constraints, and critical need for operational resilience.[^1][^2]
Why Healthcare Is a Prime Candidate for EaaS
The Energy Burden of Healthcare Facilities
Hospitals are among the most energy-intensive building types, operating 24 hours a day, seven days a week to power life-support systems, HVAC, sterilization, imaging equipment, and more. Energy costs account for 5–10% of a hospital's entire operating budget. For a typical 300-bed acute care hospital, HVAC alone can represent 50–60% of total energy consumption. Annual energy expenses range from $600,000 to over $2 million per year for a standard facility.[^3][^4]
Healthcare operating expenses rose by 17.5% between 2019 and 2022 due to inflation, increased patient loads, and supply chain disruptions. Yet capital budgets remain stretched: rising costs, tighter margins, and competing demands prevent many providers from proactively investing in energy infrastructure upgrades. This financial pressure is precisely the gap that EaaS is designed to fill.[^5][^3]
Structural Capital Constraints
Traditional energy upgrades require significant upfront capital — funds hospitals consistently prioritize for clinical expansion, equipment purchases, and patient care. EaaS converts these capital expenditures (CapEx) into predictable operating expenditures (OpEx), enabling facilities to modernize without straining balance sheets. Crucially, because EaaS providers fund the improvements and recover their investment through recurring service charges, these arrangements are often treated as service contracts rather than debt — keeping projects off the balance sheet, at least in appearance.[^6][^7]
However, it is worth noting that accounting standards under FASB (ASC 842, ASC 853) and GASB (GASB 87, GASB 94) may still require recognition of lease liabilities or deferred inflows depending on the structure of the agreement, so financial leaders must evaluate each arrangement carefully.[^8]
How EaaS Works in Healthcare
The Partnership Model
Under a typical EaaS arrangement for healthcare, the EaaS partner makes an upfront advance lease payment to the health system in exchange for the right to jointly operate, maintain, and renew the energy infrastructure over a defined period — often 20 to 30 years. The health system retains ownership of the assets but transfers operational control to the provider. The advance payment can be applied toward infrastructure projects, deferred capital needs, and energy optimization initiatives.[^9]
The EaaS partner typically guarantees a percentage of annual energy cost savings, providing budget certainty and transferring performance and technology risk away from the hospital. This model was pioneered in the not-for-profit healthcare space when ENFRA executed the first such partnership with Ochsner Medical Center in 2017.[^10][^9][^6]
Scope of Services Delivered
EaaS contracts in healthcare commonly cover:
- HVAC and central utility plant overhauls: Heating, cooling, and ventilation systems typically represent the largest share of hospital energy use.[^4]
- LED lighting retrofits: One of the most cost-effective and common entry points for EaaS, as demonstrated by eEnergy's 2026 contract covering 18 GP surgeries in the UK for the NHS.[^11]
- Building automation and controls (BAS/BMS): AI-powered systems that optimize equipment scheduling to reduce demand without compromising patient comfort.[^12]
- On-site renewable energy: Solar photovoltaic installations and battery energy storage systems (BESS) integrated into hospital energy plans.[^13]
- Microgrids: Distributed energy systems that can "island" from the grid during outages, providing critical-load survivability for ICUs, operating rooms, imaging suites, and pharmacies.[^14]
- Self-Demand Response (Self-DR): AI-based technology that analyzes real-time energy patterns in HVAC, lighting, and medical support equipment, automatically reducing consumption without affecting patient care.[^12]
Key Benefits for Healthcare Organizations
Financial Flexibility and Cost Savings
The financial case for EaaS in healthcare is compelling. By eliminating upfront investment requirements, hospitals unlock immediate liquidity through advance payments and redirect saved capital toward clinical priorities. ENFRA, a leading EaaS provider focused on healthcare and higher education, reports a portfolio exceeding $2 billion in financed energy projects generating $87 million in annual cost savings.[^15][^10]
Adventist Health — a California nonprofit with over $6.8 billion in total assets — entered a landmark $418 million, 30-year EaaS partnership with Bernhard in 2024, expecting a 20%+ reduction in energy consumption across key facilities. The Glendale campus alone is projected to achieve a 61.1% reduction in purchased electricity. Hospitals that pursue EaaS-enabled efficiency upgrades typically achieve 15–30% energy cost reductions while maintaining or improving patient care quality.[^13][^4]
The Inflation Reduction Act of 2022 further accelerated EaaS adoption in the U.S. by expanding renewable energy tax credits to 501(c)(3) organizations such as not-for-profit health systems, making long-term EaaS proposals from energy infrastructure providers increasingly attractive.[^9]
Operational Resilience and Reliability
Power reliability is non-negotiable in healthcare. Outages during surgeries, ICU care, or diagnostic procedures can directly threaten patient safety. Standard emergency power systems typically mandate only 72–96 hours of fuel supply — insufficient for prolonged events such as hurricanes or wildfires. EaaS providers address this through microgrids and on-site generation.[^16]
Research confirms that well-designed hospital microgrids can reduce Energy Not Supplied (ENS) by 55–63% compared to baseline configurations, while maintaining at least 95% supply to life-critical loads across outage scenarios. Techno-economic analyses of PV + BESS + diesel hybrid microgrids also show net present cost savings of 9–14.2% over traditional grid-dependent configurations. During California's PG&E public safety power shutoffs caused by wildfire risk, hundreds of hospitals relied on generators — a scenario that microgrids under EaaS could manage far more effectively.[^17][^14][^16]
Focus on Core Mission
EaaS allows hospital administrators and facility managers to offload the complexities of energy infrastructure management — engineering, procurement, maintenance, compliance — to specialists, freeing internal teams to focus on patient care. HealthTrust, a major healthcare group purchasing organization, entered a national EaaS agreement with Bernhard ProStar specifically to allow member hospitals to shift capital and operational focus back to patient delivery.[^15][^5]
Sustainability and Net Zero Alignment
Healthcare systems globally are under increasing pressure to decarbonize. The UK's NHS became the world's first national health system to commit to net zero in 2020, targeting net zero by 2040 for directly controlled emissions and net zero by 2045 for broader emissions — with direct emissions already down 68% since 1990. European hospital leaders are mobilizing similar roadmaps under the European Green Deal.[^18][^19]
EaaS directly supports these ambitions by integrating renewable energy, battery storage, and efficiency measures into healthcare facilities. The Adventist Health EaaS partnership, for example, is projected to reduce Scope 2 greenhouse gas emissions at the Glendale facility by 63.7%. Healthcare's ESG goals — reducing carbon footprint, meeting investor and regulatory expectations — also make EaaS attractive since hospitals can achieve environmental targets without burdening their capital budgets.[^10][^8][^13]
Emerging Applications and Global Dimensions
AI-Driven EaaS
Artificial intelligence is accelerating EaaS capabilities in healthcare. In June 2025, St. Carollo Hospital in South Korea became one of the first institutions to implement an AI-based EaaS model in the hospital sector, using Self-DR technology to autonomously analyze energy consumption across HVAC, lighting, and medical support equipment and optimize usage without affecting patient care. AI-powered digital twins and energy management systems that integrate carbon monitoring and ESG dashboards are also expanding under Utility-as-a-Service (UaaS) models in markets like Thailand.[^20][^12]
Developing World: Closing the Energy Access Gap
EaaS also has critical humanitarian dimensions. Globally, over 25,000 healthcare facilities in sub-Saharan Africa lack access to electricity entirely, and approximately 70,000 health centers have unreliable electrical supply — contributing to failure of one-third of medical devices. Closing this energy access gap in African health facilities is estimated to require approximately $2.5 billion.[^21]
EaaS models are being piloted in this context with a focus on outcome-based financing, where metrics like battery health, voltage stability, and system uptime are tied directly to healthcare performance indicators. EM-ONE Energy Solutions, for instance, is piloting an EaaS model at a large specialist hospital in Nigeria with plans to expand to 10 additional specialist hospitals by end of 2025. In Nigeria, the Federal Government launched the Nigeria Power for Health Initiative in 2026 targeting at least 30% uninterrupted power supply across healthcare facilities by 2027.[^22][^21]
A case study from Chhattisgarh, India also demonstrated how EaaS succeeded in a regional context through specific public-private partnerships and de-risking strategies — underscoring that EaaS is a promising but context-dependent model that requires tailored approaches.[^21]
Challenges and Considerations
Financial and Accounting Complexity
While EaaS is often marketed as an off-balance-sheet solution, S&P Global Ratings noted in 2025 that EaaS arrangements are off-balance-sheet in appearance but are "on-credit" for not-for-profit healthcare providers — meaning credit rating agencies will still account for the obligations. Under FASB ASC 842 and GASB standards, hospitals may need to recognize right-of-use assets, lease liabilities, or deferred inflows depending on whether the arrangement conveys control of an identified asset.[^23][^8]
Long-Term Contract Lock-In
EaaS contracts typically run 20–30 years, introducing strategic inflexibility. Hospitals that enter poorly structured agreements may find themselves constrained if technology evolves, patient volumes shift, or the facility undergoes significant renovation. Thorough upfront due diligence on performance guarantees, renegotiation provisions, and exit clauses is essential.[^9]
Operational and Regulatory Complexity
Energy systems in hospitals must meet rigorous reliability, safety, and regulatory standards (e.g., NFPA 70, NFPA 110, Joint Commission requirements). EaaS providers must demonstrate deep healthcare-specific expertise — not all commercial energy service companies have the requisite knowledge of clinical environments, infection control requirements, and accreditation standards. Facilities must evaluate provider track records specifically in healthcare settings.[^6]
Equity and Access in Low-Resource Settings
In low- and middle-income countries, EaaS adoption is hampered by limited creditworthy anchor tenants, weak grid infrastructure, currency risk, and immature regulatory frameworks. Without effective public-private partnerships and blended financing mechanisms (such as carbon credits, health renewable energy credits, and donor capital), EaaS models may not be commercially viable in the most underserved healthcare contexts.[^21]
Competitive Landscape: Key EaaS Providers in Healthcare
| Provider | Notable Healthcare Focus | Key Features |
|----------|--------------------------|--------------|
| ENFRA | Largest U.S. not-for-profit EaaS specialist | $2B+ portfolio, pioneered first healthcare EaaS in 2017[^10] |
| Bernhard / Bernhard ProStar | Major U.S. hospital networks | $418M Adventist Health deal; 1,300+ hospital relationships[^13][^5] |
| Trane Technologies | Acute care hospitals, clinical environments | Full EaaS lifecycle with performance guarantees[^6] |
| eEnergy (AIM: EAAS) | NHS and UK healthcare | First NHS-ready EPC funding structure, IFRS 16-compliant[^11] |
| EM-ONE Energy Solutions | Sub-Saharan Africa hospitals | 300+ clinics/hospitals powered, Nigeria EaaS pilot[^21] |
| EIPGRID Consortium | Asian hospitals | First AI-based hospital EaaS with Self-DR technology[^12] |
Strategic Takeaways
EaaS represents a structural shift in how healthcare organizations approach energy — from a capital expense managed in-house to a guaranteed-outcome service delivered by specialists. The model aligns with healthcare's core imperatives:
1. Preserve capital for clinical investment while still modernizing aging infrastructure.[^15][^6]
2. Guarantee energy reliability through microgrids and on-site generation that protect against outages in critical care environments.[^14][^16]
3. Advance sustainability commitments by integrating renewables and reducing Scope 1 and 2 emissions at contractually guaranteed levels.[^18][^13]
4. Transfer risk for technology obsolescence, maintenance failures, and energy price volatility to the EaaS partner.[^6][^9]
5. Enable access to energy in resource-limited settings through innovative financing that does not require upfront capital from already-strained healthcare budgets.[^21]
As AI-driven optimization, battery storage costs, and renewable energy economics continue to improve, EaaS is expected to deepen its penetration across all tiers of the healthcare sector — from large U.S. academic medical centers to rural clinics in sub-Saharan Africa.
References
1. [Energy as a Service Market Size, Report, Share, Outlook 2031](https://www.mordorintelligence.com/industry-reports/energy-as-a-service-market) - Energy As A Service Market size was valued at USD 107.59 billion in 2025 and estimated to grow from ...
2. [Energy As A Service Market Size & Share Report, 2026-2033](https://www.grandviewresearch.com/industry-analysis/energy-as-a-service-market) - Energy as a service market size was at $81.3 billion in 2025, to grow from $89.6 billion in 2026 to ...
3. [Healthcare Facility Operations: Save Energy, Time, & Money Today](https://electricityrates.com/business-electricity/healthcare-facilities/) - Healthcare facilities spend over $9.7 billion on energy yearly. See what steps can spark big energy ...
4. [Healthcare Facility Energy Management & Safety-First Efficiency](https://illinoiscommercialenergy.com/resources/lower-hospital-energy-costs-illinois/) - Lower Hospital Energy Costs in Illinois | Comprehensive strategies for ensuring reliable uptime whil...
5. [Fueling Change - HealthTrust - HealthTrust](https://healthtrustpg.com/thesource/supply-chain-optimization/fueling-change/) - HealthTrust has entered into a national agreement with Bernhard ProStar to provide Energy-as-a-Servi...
6. [[PDF] Energy-as-a-Service for Healthcare - Trane Technologies](https://elibrary.tranetechnologies.com/public/commercial-hvac/Literature/Sales/ENGY-SLB084-EN_03172026.pdf)
7. [How EaaS Frees Up Capital For Strategic Growth](https://enfrasolutions.com/how-eaas-frees-up-capital-for-strategic-growth) - Featured in Becker's Hospital Review
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9. [Energy-as-a-Service Opportunities for Health Systems - Vizient Inc.](https://www.vizientinc.com/insights/all/2024/energy-as-a-service-opportunities-for-health-systems) - Health systems with substantial energy infrastructure may derive significant value from an energy-as...
10. [Energy-as-a-Service Provider | EaaS Company - Enfra](https://enfrasolutions.com/services/energy-as-a-service) - ENFRA provides Energy-as-a-Service and conservation solutions to cut costs and boost efficiency. Upg...
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12. [St. Carollo Hospital and EIPGRID Consortium Sign ...](https://www.eipgrid.com/ko/news/st.-carollo-hospital-and-eipgrid-consortium-sign-agreement-for-ai-based-energy-optimization-tailored-for-hospitals)
13. [Historic $418M Energy-as-a-Service (EaaS) partnership forged ...](https://www.rbccm.com/en/expertise/study?dcr=templatedata%2Frbccm%2Fcasestudy%2Fdata%2F2024%2F10%2Fhistoric_418m_energy-as-a-service_eaas_partnership_forged_between_adventist_health_and_bernhard) - "This framework is a revolutionary solution to the healthcare industry that provides benefits in ene...
14. [Resilience-oriented optimization of hospital microgrids with critical load support using ESS and PV under grid outage conditions](https://www.nature.com/articles/s41598-026-34992-x) - This study develops a resilience-oriented optimization framework for hospital microgrids that integr
15. [Energy-As-A-Service Shifts Focus from Operations Back to Patients](https://www.ashe.org/energytocare/sustainability-tips/energy-as-a-service-shift) - Energy-as-a Service (EaaS) is a partnership between energy systems experts and professionals who are...
16. [During a pandemic, hospitals are facing a new challenge. Microgrids and energy as a service can help](https://blog.se.com/sustainability/2020/08/14/during-a-pandemic-hospitals-are-facing-a-new-challenge-microgrids-and-energy-as-a-service-can-help/) - Discover why microgrids and energy as a service can help hospitals keep the power on and save on ene...
17. [Techno-Economic Analysis and Resilience Enhancement of ... - Sciety](https://sciety.org/articles/activity/10.21203/rs.3.rs-8935010/v1) - Hospitals are critical infrastructures where power continuity is paramount. This study presents a te...
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20. [Green Hospital Utility-as-a-Service for Sustainable Healthcare in ...](https://www.linkedin.com/posts/wankawisant_06082026-official-press-release-green-activity-7469511853296250880-eKWL) - 06.08.2026 Official Press Release Green Hospital Utility-as-a-Service (UaaS) Transforming Thai Hospi...
21. [Energizing Healthcare 2025: Key Insights for Sustainably Powering ...](https://www.emone.energy/news/energizing-healthcare-insights) - Energizing Healthcare 2025: Key Insights for Sustainably Powering Health Facilities . What were the ...
22. [FG opens health power mkt, targets 30% reliable electricity by 2027](https://www.vanguardngr.com/2026/06/fg-opens-health-power-mkt-targets-30-reliable-electricity-by-2027-3/) - By Chioma Obinna The Federal Government on Monday launched a major investment-driven reform to tackl...
23. [U.S. Brief: Energy As A Service Is Off-Balance-Sh | S&P Global Ratings](https://www.spglobal.com/ratings/en/regulatory/article/250331-u-s-brief-energy-as-a-service-is-off-balance-sheet-but-on-credit-for-not-for-profit-health-care-providers-s13455856) - U.S. Brief: Energy As A Service Is Off-Balance-Sheet, But On-Credit For Not-For-Profit Health Care P...