You asked, and I will tell. The sunlight that falls on the USA for five minutes could power the entire USA for 60 years. And just so you realize, during commercial power generation, between the power plant and the home which uses electricity, over 60% of the electrical power is lost due to the resistance of the electric power lines. *source: California energy commission
Therefore, ANY electrical generation source located at the home is more efficient than commercial power, located some miles away.
Speaking of solar energy, you are doing the earth an immense favor by reducing CO2 gasses released from commercial power generation plants. ALL energy can easily be produced by solar, wind, geothermal and hydroelectric sources, without burning ANY fuels.
The technology to do this exists right now.
In some communities, a special electric meter is fitted to the home. This meter runs backwards when solar energy is fed back into the electric grid. This will reduce your electric bill, and can reduce it to zero, depending on how many solar panels you are willing to install.
The answer to the question is YES.