Smart Joules

Powering Energy Efficiency in Emerging Market Hospitals

India is the world’s third‑largest consumer of primary energy.1 As the second‑most populous country with 1.4 billion people, India is also set to see the largest increase in energy demand than any other country over the next 20 years.2 The country is facing an urgent need for energy‑saving solutions.

Industrial and commercial facilities present a significant energy saving opportunity for Indian companies, particularly the hospital sector with its 24/7 operations and high energy‑consuming equipment. However, the adoption of energy efficiency solutions is constrained by the high upfront cost of key equipment retrofits associated with implementing new energy infrastructure and lack of mechanism to measure savings to justify the investment.

New Delhi‑based start‑up Smart Joules is tackling these constraints by shouldering the upfront capital cost of major retrofits including modern energy‑efficiency equipment and sensors, helping hospital and commercial buildings manage the challenges of escalating energy prices, with part of the savings shared with Smart Joules. This unique pay‑as‑you‑save solution is called JoulePAYS.

Each equipment installed by Smart Joules is governed by an operating system called DeJoule, which continuously adjusts equipment settings to optimize both performance and energy consumption, leveraging Internet of Things (IoT) technology and its proprietary machine‑learning algorithms. Most importantly, DeJoule also offers clients an online dashboard where they have access to real‑time operational data and transparent accounting of energy savings.

“By adopting Smart Joules’ innovative solution, we have been able to optimize our cooling, heating, ventilation, and automation systems across our hospitals, significantly saving energy without compromising on any aspect of the patient experience. This is a win‑win situation for us, our patients, and the planet. We hope that our initiative will inspire other healthcare providers to join us in this green revolution.”
- Dr. K. Hariprasad, President of Apollo Hospitals.

Mainstreaming affordable energy‑efficiency‑as‑a‑service approach, Smart Joules’ solution allows Indian hospitals and commercial facilities to pursue profitable climate action and de‑risks energy efficiency decision‑makings by providing profit assurance. Smart Joules is currently managing over 40 active projects, the majority of which are in the hospital sector, including top‑20 Indian hospital chains such as Fortis, Apollo, KIMS and CARE.

In 2023, Smart Joules strengthened its partnership with Apollo Hospitals in a ten‑year initiative that provides the energy‑saving solution to 18 hospitals nationwide, estimated to mitigate 29 million tonnes of carbon emissions. After just four months of integrating JoulePAYS solution into Apollo’s infrastructure, 235 energy measures have been put into action, resulting in forecasted savings of over 235 million kWh and INR 2 billion (24 million USD). The company is also increasing its presence in other industries through a partnership with ITC Limited, a large Indian conglomerate.


Energy Efficiency

Investment Executed:

February 2021

Impact SDGs:

Target Impact:

Climate Mitigation

ADB Ventures invested in Smart Joules in February 2021, aiming to create a category leader in energy‑efficiency‑as‑a‑service in emerging Asia. Smart Joules’ is transforming building energy efficiency in emerging Asia by saving 140,000 MWh of electricity and avoiding 130,000 tonnes of CO2 by 2025.