It's been a good year!
This graph shows how well our PV system has
done during an 11-month period in 1997. Our new Trace inverter, after
an initial "burp" which required it to be shipped back to the
manufacturer, has performed flawlessly since February. Starting in
March, we began to have a net surplus. This meant that we sold to
Central Maine Power (Out) more power than we bought (In). The net was
purchased from us at 2.5 cents/kWhr. Our monthly electricity bill has
been under $10 for each of those surplus months. Notice the August
reading...many children and grandchildren here...the same in
December. On balance (without January of '97) we had an annual
surplus of electricity!