It is hard to imagine that this can also use solar PV!

　　A: Solar bikini

　　Solar bikini can make you look sexy and fashionable on the beach instantly. Its functions are both novel and interesting. First of all, it allows you to enjoy the coolness of the water on the beach without going into the water; secondly, the USB cable on it allows you to charge your iPod and keep your cold drinks warm while enjoying the sun, etc. It is totally in an environmentally friendly way.

　　B: Solar glider

　　This fantasy became a reality at NASA Dryden Flight Research Center in California, USA. This is the "Pathfinder" (Pathfinder) solar remote control glider. It claims to be powered entirely by solar energy and can undertake long-distance, high-altitude flights, but its current flying speed is only 15 mph.

　　C: The world's largest solar small boat

　　The Knierim Yacht shipyard in northern Germany has built the world’s largest solar-powered small boat. The small ship named Yacht is 31 meters long, 15 meters wide and 7.5 meters high, and covers 500 square meters of solar power panels. These power generation panels can generate 103.4 kilowatts of electricity, and only 20 kilowatts of it can drive the ship. Its fastest speed can reach 17 mph. It cost 18 million euros to build this ship, which is really a very expensive product.

　　D: Solar refrigerator

　　In Namibia, people call Emily Cummins "Miss Refrigerator". This is because she invented a solar-powered refrigerator to help poor Africans. The working principle of this solar refrigerator is two cylinders, a large cylinder is sheathed with a small cylinder, the inner cylinder is metal, and the outer cylinder is wood or plastic. Sand or soil is filled between the two cylinders, and the sand and soil are soaked with water during use. When the heat of the sun evaporates the water in the interlayer, the water vapor also takes away the heat of the inner cylinder. This keeps the temperature inside the inner cylinder at about 6 degrees Celsius.

　　E: Solar helmet

　　The commander of the U.S. Army Equipment Command, General Dennis Weia, said at a meeting of the U.S. Army Association a few days ago that Army researchers and scientists are developing this wearable solar panel and other technologies.

　　Soldiers may soon install solar panels on backpacks and helmets to charge batteries and power displays and other equipment used on the battlefield.

　　Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect replacement for lead-acid batteries, and they are the first choice for grid-connected peak shaving, off-grid energy storage, PV energy storage, UPS, data center and other industries.

　　Solar power generation system with lithium battery energy storage system is a very promising clean energy.