We have a small PV system out the front of E-SI HQ and we have the ability to monitor our PV's output at any given time. Even though it's only four panels we can generate a decent amount of electricity that makes a great difference to our power needs.
Our current reading (pictured below) shows the Panels are generating 570W which would be enough to cater for all our computers and some of our lighting. So it goes to show even the smallest size PV system will even give great benefits immediately, not to mention today is a cloudy day in Autumn!
