Harnessing the Sun: A 12VDC Solar Hot water Solution that’s suitable for Glamping, Off-Grid & Many more applications
Introduction:
In today's world, the desire for sustainable living and eco-friendly practices has led to the rise of off-grid living and glamping (glamorous camping). These alternative lifestyles prioritize self-sufficiency and minimal environmental impact, presenting unique challenges, particularly regarding access to hot water. Conventional hot water systems often rely on non-renewable energy sources, making them unsuitable for off-grid living or environmentally-conscious glamping. However, advancements in solar technology have paved the way for innovative solutions, including solar thermal hot water systems tailored for the needs of off-grid living and glamping enthusiasts.
The Need for Sustainable Hot Water Solutions:
Off-grid living and glamping enthusiasts face the challenge of accessing hot water sustainably. Traditional hot water systems, powered by electricity or gas, may not be viable options in remote locations where utilities are scarce. Moreover, relying on non-renewable energy sources contradicts the ethos of sustainability that underpins these lifestyles. Therefore, there is a growing demand for hot water solutions that are both practical and environmentally friendly, driving the development of solar thermal hot water systems.
Understanding SolarisKit’s Solar Thermal Hot Water System:
SolarisKit’s solar thermal hot water system utilizes prismatic shaped solar thermal collectors to passively track and harness the sun's energy and heat water directly. Unlike photovoltaic (PV) panels, which convert sunlight into electricity, solar thermal collectors absorb solar radiation and transfer the heat to a heat transfer fluid, typically water or a mixture of water and antifreeze. This heated fluid is then circulated through an insulated tank, providing a reliable source of hot water for various applications.
Components of a SolarisKit’s Solar Thermal Hot Water System:
Solar Thermal Collectors: SolarisKit’s Solar Thermal Collectors are specifically designed to capture and absorb solar radiation efficiently. These collectors consist of a coil of absorber pipe, with heat-absorbing aluminium panels, all encased in specialized solar glass. The radiation and heat passes into the collector and is absorbed and then the heat is transferred to the fluid as it passes through the collector.
Solar Controller: The SolarisKit’s solar controller regulates the flow of the fluid between the solar collector array and the insulated tank by taking temperature readings from sensors in the tank and collector. Once there is a sufficient temperature difference between the two sensors the controller will power up the pump, ensuring optimal performance and preventing overheating of the system.
Water Pump: A 12 Volt DC powered energy efficient centrifugal pump.
Insulated Tank: The insulated tank stores the heated water for later use, minimizing heat loss and ensuring a continuous supply of hot water. The tank is typically well-insulated to maintain water temperature for extended periods, even during periods of low sunlight or high demand.
Benefits of SolarisKit’s Solar Thermal Hot Water System:
Sustainability: Solar thermal hot water systems utilize renewable solar energy, reducing reliance on non-renewable energy sources and lowering carbon emissions. By harnessing the power of the sun, these systems promote environmental sustainability and contribute to a greener future.
Off-Grid Compatibility: SolarisKit’s Solar thermal hot water systems are well-suited for off-grid living, providing a reliable source of hot water even in remote locations where traditional utilities are unavailable. This makes them ideal for off-grid homes, cabins, and glamping sites seeking self-sufficiency and independence from the grid, due to their low power consumption of 15Watts and 12Volt DC requirement.
Cost Savings: Once installed, solar thermal hot water systems incur minimal operating costs since they rely on sunlight, a free and abundant energy source. The pump consumes around 12Watts of energy when operating whilst the controller only consumes a mere 2-3Watts. Additionally, they reduce or eliminate the need for expensive infrastructure and ongoing utility bills associated with conventional hot water systems, leading to long-term cost savings.
Applications in Glamping:
Solar thermal hot water systems enhance the glamping experience by offering a sustainable and luxurious hot water solution in natural settings, complemented by the aesthetic looks of SolarisKit’s Solar Thermal Collector array. Whether it's an outdoor shower, a spa-like bath, or gourmet kitchen facilities, glamping sites can incorporate solar thermal hot water systems to provide guests with an eco-friendly and indulgent experience. By embracing solar technology, glamping operators can attract environmentally-conscious travellers while reducing their carbon footprint and promoting sustainable tourism.
The graph above is a 6 day selection of data from the system on test in Kabwe, Zambia in December 2023. After filling the 210 Litre tank with 25°C water at 5am on 02/12/2023, the 6 collector system steadily heated the water to 40°C on the first day, 50°C on the second day and 58°C on the third day (04/12/2023). After which the controller only allowed the collectors to heat the tank to 60°C then shut off for safety reasons of exceeding 60°C.
Conclusion:
Solar thermal hot water systems represent a sustainable and environmentally friendly solution for off-grid living and glamping. By harnessing the sun's energy, these systems provide a reliable source of hot water without relying on non-renewable energy sources. With their off-grid compatibility, cost savings, and applications in glamping, solar thermal hot water systems offer a practical and eco-conscious alternative to conventional hot water systems, paving the way for a more sustainable future.