What does kWh stand for, and what's the difference between a kW and a kWh? Finn Peacock November 01, 2017 19:53 Updated Follow I explain that here. Related articles How do I know what size system is best for me? I use 95% of my electricity after 6pm - should I get solar? What price should I be paying for a solar system? I am thinking about solar but believe I have missed the boat – is it still worth it for me to get a solar system? Should I buy batteries with my solar? Comments 0 comments Please sign in to leave a comment.