A solar power system only produces electricity when the sun is shining. So if you have a solar power system and your electric bill is high, it's likely because you're using a lot of electricity at night or on cloudy days. A solar power system can help reduce your electric bill, but it's not a magic bullet. You'll still need to use less electricity overall if you want to see a significant decrease in your monthly bill. Solar panels only produce around 20% of their rated capacity on an annual basis, so you'll need to install enough panels to meet your needs. And remember that the cost of installing a solar power system will take years to recoup through lower electric bills.
A solar power system only produces electricity when the sun is shining. So if your home is using more electricity than your solar panels are producing, you will see a higher electric bill. You can reduce your electric bill by using energy-efficient appliances and light bulbs, and by turning off lights and electronics when not in use. You can also save energy by using a programmable thermostat to automatically adjust the temperature of your home based on time of day.