Solar Heating Sustainable Energy
CST H3500 – The World’s Most Efficient Solar Heat Generator
Discover the future of sustainable energy with the CST H3500, engineered to deliver maximum thermal output with minimal space usage. Backed by cutting-edge innovation and certified performance, it offers the highest return on investment in solar thermal technology.
✅ Maximum Conversion Efficiency
Designed for peak performance, the CST H3500 ensures superior solar-to-thermal energy conversion—ideal for industrial applications.
✅ Flexible Installation
Adaptable to challenging terrains and rooftop spaces, its modular design makes setup easy and scalable.
✅ Lowest Footprint, Highest Output
Achieve energy goals with minimal land requirement, helping industries save space and reduce costs.
✅ Unmatched Cost Efficiency
Recognized as the most cost-effective solar heat solution globally, the CST H3500 delivers long-term energy savings.
✅ Government Certified & Award-Winning
Tested by NISE (National Institute of Solar Energy) and awarded by the MNRE (Ministry of New and Renewable Energy, Government of India) for excellence in solar thermal innovation.
Upgrade your energy systems with the CST H3500 — smart, sustainable, and future-ready.
FLEXIBILITY, UNCOMPLICATED INSTALLATION, EASY ASSEMBLY
DESIGNED FOR CONVENIENCE
Assembly on field only requires tightening of bolts. No complicated alignment or tools.
UNIQUE INSTALLATION
The Quadsun dish can be installed on rooftops, in ponds, on decks and in difficult terrain such as on-hill installations.
FLEXIBILITY
CONVENIENT HANDLING
Easy accessibility makes it extremely convenient to service the dish, clean mirrors or swap parts.
EFFICIENCY
HIGHEST RETURN ON INVESTMENT
Quadsun CST H3500 delivers the world’s highest conversion efficiency from sunlight to heat energy. The heat captured is used to displace heat from fossil fuels.
BEST GLOBALLY CONVERSION EFFICIENCY
World’s most efficient solar heating system. High concentration. Precision tracking. Precision mirrors.
100% RELIABILITY AUTO GRADE MANUFACTURING & CONTROLS
Processes and systems benchmarked with automotive industry standards.
DURABILITY DESIGNED TO LAST
>5mn hour on-sun time. 5 year warranty. 25 year product life.
TOTAL VALUE MOST COST EFFICIENT SOLUTION WORLDWIDE
CST H3500 is the most cost-efficient concentrated solar thermal solution worldwide with a 40% higher conversion efficiency compared to other technologies
LOWEST COST OF GENERATION 40%
HIGHER OUTPUT
Higher conversion efficiency of up to 40% at comparable cost
< COALDISPLACING FOSSIL FUEL USAGE
Levelized cost of energy is less than that of coal
PERFORMANCE
HIGHEST CONVERSION EFFICIENCY IN THE WORLD
Quadsun CST H3500 delivers the world’s highest conversion efficiency from sunlight to heat due to its high reflectivity combined with precision tracking.
0.01°
PRECISION TRACKING
The device remains pointed at the sun in real time, tracking it with 0.01° accuracy
700X
PRECISION MIRRORS
Precise parabolic mirrors focus sunlight on the receiver concentrated 700 times
3X
HIGH CONCENTRATION
3x better than conventional non-tracking technology
DURABILITY BUILT TO LAST
Quadsun technology has been specially designed and engineered to withstand the adverse impact of natural forces and other external factors
>1 MILLION HOURS
ON SUN TIME
7 LAYERS
EDGE PROTECTION TECHNOLOGY
The Quadsun dish is equipped with long lasting, solar grade, tempered glass mirrors coated with 7 layers and a unique edge protection technology.
TOUGH
WEATHER RESISTANT
Quadsun electronics are housed in weather proof enclosures. The gear box is high wind resistive, driven by reliable, weather proof stepper motors.
COMPACT LOWEST SPACE REQUIREMENT
Quadsun systems only need about 1/2 the space required to generate the same amount of energy as other technologies. A low footprint is the outcome of tracking the sun using high efficiency cells. Tracking the sun like a sunflower enables our systems to gather and convert more sunlight to energy.
MINIMAL
SPACE REQUIRED
Quadsun systems only need about 1/2 the space compared to other systems.
3.7 SQM PER KW
INSTALL ANYWHERE
The minimal space required by a Quadsun CST dish allows for installation in any terrain
FLEXIBILITY UNCOMPLICATED INSTALLATION
EASY ASSEMBLY DESIGNED FOR CONVENIENCE
Assembly on field only requires tightening of bolts. No complicated alignment or tools.
UNIQUE INSTALLATION
The Quadsun dish can be installed on rooftops, in ponds, on decks and in difficult terrain such as on-hill installations.
FLEXIBILITY CONVENIENT HANDLING
Easy accessibility makes it extremely convenient to service the dish, clean mirrors or swap parts.
LOW MAINTENANCE
DESIGNED FOR EASE
98%
FIELD UPTIME
48 HRS
REPAIR TIME TO ANY FAILURE
Quadsun ensures that any failure is addressed within 48 hours of the malfunction.
VERSATILE MULTIPLE APPLICATIONS
Quadsun systems embody different breakthroughs in optics, mechanics, thermodynamics, power electronics and tracking algorithms. These innovations help deliver low cost, reliable solar energy. Quadsun uses commercial designs and materials that have proven their longevity across applications. Additionally, our components are tested over several thousand hours to ensure trouble-free, clean power.
STEAM COOKING
Each dish produces 25kg steam with LCOE as low as Rs 1.50 only.
VAM (VAPOR ABSORPTION MACHINE)
Each dish generates 1 ton of cooling in Direct Normal Irradiance (DNI) areas at a cost of less than Rs 2
THERMAL DESALINATION
Capacity to process 250 liters per day per dish with lower LCOE of desalination.
PROCESS HOT WATER SOLAR AIR CONDITIONING
AGRICULTURAL DRYING WASTE WATER EVAPORATION
Our Solutions
Smart Water Solutions, Built for Industry
Wise Water Solutions delivers modular, AI-enhanced water recovery systems tailored for industrial complexity and environmental urgency. Our approach goes beyond treatment, we turn wastewater into a strategic resource.
Whether you’re tackling high-TDS brines, corrosive effluents, or rising regulatory pressure, our solutions combine proven hardware with smart software to optimize performance, reduce OpEx, and unlock circular value.
What We Offer Today:
Thermal & Hybrid ZLD Systems – Efficient water treatment and recovery from high-salinity, high-temperature streams from multiple sectors.
What We Are Building:
AI-Driven Optimization – Real-time monitoring, predictive maintenance, and automated control.
Circular Intelligence Layer – Resource recovery insights, compliance automation, and digital twins.
Built for Seamless Solar Integration
Trusted validation for energy-efficient water treatment
Quadsun’s ‘ technology is certified by the National Institute of Solar Energy (NISE) — India’s premier institution for renewable energy research and validation, operating under the Ministry of New and Renewable Energy (MNRE).
This certification confirms that our thermal ZLD systems meet rigorous standards for:
Solar thermal integration
Energy efficiency and performance
Operational reliability under industrial conditions
Located in Gurugram, India, NISE plays a key role in advancing solar innovation nationally and globally.
For our clients, this means independent validation of a system designed not only to perform — but to save energy, reduce emissions, and support clean-tech goals.
Key Features:
Real-Time Precision Tracking
Tracks the sun with 0.01° accuracy to maximize thermal capture all day long
700x concentration via parabolic mirrors for superior heat intensity
3x more efficient than conventional fixed solar systems
Maximum Efficiency & ROI
40% higher conversion efficiency than competing CST technologies
Lowest footprint: only 3.7 m² per kW
Most cost-efficient solar thermal solution globally
Delivers 25 kg of steam, 1 ton of cooling, or 250 liters/day desalination per dish
Flexible & Compact Deployment
Easy installation even in rugged or remote terrain
Modular design for scalable, application-specific layouts
Built to Last
5 million sun-hours durability
Backed by a 5-year warranty and 25-year design life
100% reliability with auto-grade manufacturing and controls
Certified & Recognized
NISE-certified – National Institute of Solar Energy, India
Award-winning solar thermal technology – MNRE, Govt. of India
Applications
Steam Cooking: Each dish generates 25 kg of steam per cycle
Vapor Absorption Machine (VAM) Cooling: Produces 1 ton of cooling per dish in Direct Normal Irradiance (DNI)
Thermal Desalination: Processes up to 250 L/day per dish with a lower Levelized Cost of Energy (LCOE)
Since its inception in 2015, QUADSUN has been originating sustainable energy systems that embody several breakthroughs in optics, mechanics, thermodynamics, power electronics and tracking algorithms. Economical, reliable and highly efficient solutions tested over several thousand hours, to ensure trouble-free clean power and proven longevity of life across several applications.
Our Solutions
Important links
Get In Touch
- Office Address: Plot No 100-101 Sector 35, Hsiidc Udyog Vihar, Phase Vii, Gurgaon 122001, Haryana, India
- Email : quadsuntechnology@gmail.com
- Phone : +91 92705 85615
- Working Hours Mon - Fri: 10:00 AM - 6:00 PM Sat - Sun: 10:00 AM - 4:00 PM
