From time to time we take calls and questions on solar battery storage. below is a link to the Enphase Storage system we would utilize today in certain circumstances. (Off Grid, which is very un-common).
In the current way we consumers pay for power in Saskatchewan, a one price per kW/hr use, day or night, battery systems do not have the return on investment that many would expect.
If Saskatchewan moves to Smart Meters and Peak/Off Peak kW/hr pricing this is when solar/battery storage systems will make much more sense as you will be able to utilize your battery systems stored power in "Peak" times when the kW/hr is much more cost.
"Off-peak refers to lower, discounted electricity prices during specific times. Off-peak times are generally when residential homes and businesses use less electricity. Off-peak times will vary depending on your location and meter type, but typically are at night, typically 9 PM to 6 AM." This allows you adjust your usage, Pay less to use electricity at off peak times (laundry, cooking etc.), pay more to do the same in Peak times. OR utilize free battery stored power to do the same in the Peak cost times.
When looking at a solar system today, it is important to think about the future as well. The system we utilize is expandable and designed to integrate seamlessly with future demands such as Peak/Off-Peek pricing of power.
ENPHASE SOLAR STORAGE - https://enphase.com/en-us/products-and-services/storage/introduction