What are the advantages of heat pumps over solar water heaters?

Heat Pumps have distinct advantages over solar water heaters:

• Heat pumps are easier to install, and they require so much less installation space than solar panels
• Heat pumps will work at night, not requiring backup heating systems
• Heat pumps can deliver more hot water over the day
• Heat pumps work well in all weather conditions
• In a commercial installation of a heat pump water heater, the air duct can be connected to the output of the air conditioning system to give improved performance
• Heat pumps are able to deliver free cooled air simultaneously to satisfy additional cooling system requirements