Technology Adoption Project (TAP)


The project aims to substantially modify the design blueprint of commercial building structures owned by corporate entities or leased-out by commercial developers to embed sustainable cooling at the core of the design DNA through integration of passive thermal comfort design and sustainable cooling technologies. It seeks to formally integrate sustainable cooling as a core policy element in corporate real estate procurement/design decision making at the management level so that all future structures built by the same corporate, and their peers, reflect a similar sustainable-cooling integrated building design. The TAP budget has provisioned to engage 64 distinct influential corporate entities and seeks to eventually lead to upward translation of learnings and recommendations for integrating sustainable cooling into urban planning policy through engagement with high-level personnel in the administrative machinery of India’s executive branch of government.

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Technologies Adopted

The HVAC-system energy audit leads to a Technical Feasibility Report that outlines the energy/cost/GHG emissions reduction from implementation of one or more of the following:

R290 split-unit ACs

R290 refrigerant gas uptake for ACs & centrally-cooled buildings: R290 split-unit ACs are not only far more energy-efficient (20% more compared to conventional split-unit ACs), but lead to lower GHG emissions from fluorinated refrigerant leakage.

Direct/Indirect Evaporative Cooling

Direct/Indirect Evaporative Cooling uptake: The lowest annual energy consumption and GHG emissions per unit area of cooled space in hot and dry regions is achieved through the use of direct as well as two-stage (direct/indirect) evaporative cooling when compared to the business-as-usual options of unit ACs or central AC systems.

Passive (Structure) and Active Radiant Cooling

In this technology, naturally cooled water (from a ground or surface water source) is circulated through ceilings or floors by means of a simple plumbing system consisting of pipes & channels.

Solar Vapour Absorption Machines

Vapour Absorption chillier machines (VAM) produce chilled water using a solar source rather than electrical input as in the case of vapour compression cycle.

Passive Cooling Technologies

Besides the above active (machine) cooling technologies, the project will also promote passive cooling technologies and design approaches in buildings. The more prominent amongst these are: Roof and Wall-Insulation, Radiant Barriers / Night-Sky Radiation Systems that shield roofs from solar radiation during the daytime and promote rapid heat dissipation through radiation at night using retractable low-emissivity radiant barriers and high-emissivity roof coatings, Efficient Fenestration Systems such as Engineered Glazing and Double-Glazed Units, Shading Devices, and Spectrally Selective Window Films.

We offer free HVAC-system energy audits to office buildings, banks, hotels and builders.

The project aims to embed sustainable cooling in the design blueprint of commercial building structures through the integration of passive thermal comfort design and sustainable cooling technologies.


To conduct this audit we need to receive 3D drawings of the building.


TAP Team

Dhrumit Parikh
Project Assistant for the Technology Adoption Project, India

A Master in Renewable Energy from Amity University and Bachlor in Mechanical Engineering from Sardar Patel University with internship and voluntery experiences at RSM GC Pvt Ltd and Center for Clean Techonology and Sustainable Business. A Certified ISO 14001 EnMS (Environment Management System) LEAD Auditor. Life time active member of Solar Society of India, New Delhi.

Vishwajeet Poojary
Project Assistant for the Technology Adoption Project, India

Vishwajeet holds a Bachelor’s degree in Mechanical Engineering from M. H. Saboo Siddik College of Engineering, Mumbai. During his graduation, he was involved in a number of technical projects and has participated in competitions held at intercollegiate and national levels like ASME Human Powered Vehicle Challenge India 2015, RoboCon 2014, RoboWars, Mahindra Design Quotient, National Design Competition etc., won prizes in some of them. He was a volunteer and participant of Green 2013, organised by his college, which aimed to spread an awareness within and around the campus about incorporating simple lifestyle changes to help the environment. Post graduation, he completed a short course on HVAC Design. He is a member of the professional body ISHRAE.