SolaRay PV Water Heating Systems
PV-Integrated Solar Thermal PerformanceThe SunEarth SolaRay PV system combines photovoltaic-powered circulation with high-efficiency solar thermal collectors to deliver advanced solar water heating performance. This SRCC OG-300 certified system is engineered for freeze protection, long-term durability, and optimized energy savings in diverse climates.
Unlike conventional solar thermal systems that rely entirely on grid-powered pumps, SolaRay PV integrates photovoltaic support to reduce parasitic electrical consumption while maximizing solar contribution.
How Photovoltaic Integration Enhances Solar Thermal Performance
The SolaRay PV system uses solar collectors to generate heat and a closed-loop propylene glycol circuit to transfer that heat into a high-performance storage tank.
The photovoltaic integration supports system operation by:
• Reducing grid reliance for pump operation
• Lowering auxiliary electrical consumption
• Improving net solar fraction
• Supporting resilience in outage-prone regions
• Increasing overall renewable contribution
This hybrid approach combines the high BTU output of solar thermal with the electrical flexibility of photovoltaic integration.
Optimizing Annual Energy Savings
System performance varies based on:
- Household hot water demand (showers, laundry, kitchen use)
- Average groundwater and ambient air temperatures
- Roof pitch and solar orientation
- Seasonal solar radiation intensity
These variables determine the total annual energy and cost savings delivered by your SolaRay PV solar heating system.
Advanced Technology for Efficient Heating
Forced Circulation System
The SolaRay PV system utilizes a "forced circulation" method, employing a mechanical pump to circulate Dow Chemical Dowfrost HD propylene glycol heat transfer fluid (HTF) efficiently. This process safeguards collector piping from freezing and prevents scaling, maintaining optimal performance in systems using potable water. With proper application and maintenance, your SolaRay PV system is protected down to -60°F (-51°C).
Heat Exchange and Temperature Control
- Components: Includes SunEarth solar collector, storage tank with heat exchanger, circulation pump, differential temperature controller, and expansion tank.
- Operation: The differential temperature controller optimizes system efficiency by regulating pump activity based on heat availability.
Innovative Installation Solutions
Discover our SolaRay Hot Water Station, SunEarth's seamless installation solution for easy and efficient integration of SolaRay AC systems. Enhance your setup today!
Product Documentation
SolaRay PV Solar Water Heating System FaQ
SolaRay PV is a solar thermal water heating system that integrates photovoltaic-powered circulation to reduce electrical consumption and enhance renewable performance.
The system uses thermal collectors to generate heat and a closed-loop heat transfer fluid to deliver energy to the domestic hot water storage.
This hybrid architecture improves efficiency while maintaining the high BTU output advantages of solar thermal technology.
Tailored Energy Solutions to Fit Your Needs
SunEarth makes it easy to transition to solar water heating. Whether you’re in the U.S. or internationally, we can connect you with a trusted, certified installer in your area.
Start saving today! Contact SunEarth to get connected with a solar water heating professional near you.
