Upgrade your home energy with solar panels, the perfect way to harness the sun's power and generate your own energy. With advanced technology and robust construction, these panels provide reliable and efficient energy production for your household. Save money and reduce your environmental impact with the 4kw Solar Panels for House, the intelligent choice for sustainable living. A 4kw system will, on average, generate around 3,400kwh of electricity per year. When we break that down, we can see that it is enough to provide: 4,857 hours of washing machine.