👉 Sunstay is a concept in the field of renewable energy, particularly solar energy. It refers to the process by which sunlight directly heats up a device or system, such as a heater or air conditioning unit, and then uses that heat to generate electricity. This process can be used for both residential and commercial applications, depending on the type of device being powered. Sunstay systems are typically designed with solar panels attached to them, creating an efficient and cost-effective way to harness sunlight's energy. They use