The Straw House Blog


Six Month Stats

Now that we’ve been in the house for six months I’ve compiled stats for what we’ve generated off of our solar panels since June of 2003. Because we reset the system when we swapped in the new battery in early June the stats for June start at the 11th.

I have no stats for the wind generator because we have no way to track its production over time right now. If I can find a method of storing data for the wind generator that isn’t expensive and that doesn’t consume electricity itself I’ll set it up, until then it’s all anecdotal. Most of the summer was pretty still and winds have been steadily increasing since late September/early October.

All readings are in amp/hours (AH). Our solar panels and battery bank are wired for 48 volts (V). To calculate Kilowatts (KW) multiply AH times voltage (V) which will give you kilowatt/hours (KWH) at 48V, divide by 2 for KWH at 110V.

Our solar collection system consists of 8 BP Solar 85 watt panels, which feed 48V through a Trace C40 into our battery bank. All of the stats are taken from the C40.