Let the sun share
your cooling load.
IESS PanelHybrid Thermal Solar (HTS) panel for VRF & AC
A rooftop solar thermal panel that connects to your VRF, inverter AC or chiller, of any brand, and makes it the most efficient HVAC system on the planet.
Benefits of the IESS Panel
Air conditioning makes up around 60% of a commercial building's electricity bill. The IESS Panel reduces that cost without changing your existing HVAC system.
Monetary savings
Up to 40% reduction in AC electricity bills
Best-in-industry COP of 6+
Part of the work is done by solar thermal energy
Judicious use of rooftop space
~1200% more space-efficient than PV panels
Longer AC life
The compressor runs on partial load
Saves capital cost on HVAC
No capacity deration in peak summer
Service to the nation
Helps prevent power cuts at peak summer load
Government incentives
12% GST & accelerated depreciation
Works with major AC brands
LG, Daikin, Carrier, Toshiba, Hitachi, Samsung, Voltas, Blue Star and more
Lower your AC electricity bills by up to 40%
Check if your site qualifiesHow much could your building save?
Move the sliders to match your site and get a quick estimate.
This is an indicative estimate. It assumes your AC runs at rated load (0.8 TR per HP, 1.1 kW per TR) and saves 35%, below the 39.8% average measured across 32 sites. It excludes the extra benefits of longer AC life and tax depreciation. A free site assessment gives you a site-specific ROI.
Get an exact figure for my siteHow the sun does part of the compressor's work
The IESS Panel sits in the refrigeration cycle between the compressor and the condenser. Sun-tracking reflectors add heat and pressure to the refrigerant, so the compressor can slow down and still deliver the same cooling.
- Connects to the VRF outdoor unit or chiller plant with copper pipes only
- Works with new installations and retrofits alike
- Makes no changes to your AC manufacturer's control system
Notable installations
Measured reductions in AC energy use at private and government sites across India. The average across all 32 tested sites is 39.8%.
Private
Government & PSU
We handle everything, end to end
From the first site survey to long-term support, Arkhe Energie is your single point of contact.
- Site assessment & technical proposal
- Supply of IESS Panels
- Installation & commissioning, typically within 1–2 days per panel
- After-sales service & support
Ready to cut your cooling costs?
Tell us about your building. We'll assess the site for free and send you a savings proposal.