There is no way for anyone to give you a specific accurate figure; there are too many variables involved. Therefore, we are not the kind of company who will make up a statistic. However, solar screens will dramatically reduce the cooling cost portion of your electric bill considering factual statistics on how much heat they block. Some statistic shown up to a 20% savings. We have seen savings of $50-$60 savings a month after Shade Shield Window Solar Screens had been installed. With the decrease in use of your AC Unit, you will even see that the window solar screens will pay for themselves within a short period. Plus, they will help your air conditioner last longer and need fewer repairs due to the reduction of its normal workload.