Generally, the cost of a solar water heater for home use ranges between AED 8,000 and AED 20,000. This includes the price of the solar panels, the storage tank, and the installation costs.
[pdf] Yes, solar panels can be used to power water pumps even in the UK and other northern latitude locations. There are several possible solar pump systems that you could install.
[pdf] The that administers government grants for domestic photovoltaic systems, the , estimated that an installation for an average-sized house would cost between £5,000–£8,000, with most domestic systems usually between 1.5 and 3 kWp, and yield annual savings between £150 and £200 (in 2008). The Green Energy for Schools programme was intended to provide 100 schools across the UK. Solar power currently produces 25% of the UK’s renewable energy, which itself accounts for 43% of total energy, which means that approximately 11% of the nation’s power comes from solar.
[pdf] Keeping your panels clean is one of the most effective ways to prevent hot spots:Schedule regular cleaning sessions, especially during dry or dusty seasonsUse appropriate cleaning methods and tools to avoid damaging the panelsRemove any debris, leaves, or bird droppings promptly
[pdf] To protect your panels, consider surge protection like Citel DS72-RS-120 or Delta LA-302, and proper grounding. Following guidelines and using quality equipment can bolster safety.
[pdf] How to choose your solar panels in 3 stepsDetermine solar panel efficiency and compare it to the industry average of 16-18%Check solar panel manufacturer warranties against an industry average of 10-25 years.Compare the cost to relative efficiency - efficiency is important, but the most efficient panels aren't always the best value.
[pdf] 
