June 22, 2008 – Skystream Data Logger

Today was a quiet day after the party – tearing down is so much easier than setting up. It was nice to walk around the farm in all its well-keptness and not be prone to weed or fix “one more thing.” I spent some time with the Skystream data logger.

The data logger uses RF to transmit data from the turbine to a laptop or PC. For the geek side in me, it was intriguing to watch the power generation graph while listening and watching the turbine so I could get a sense of how much electricity it produces at different sound/wind levels.

On this graph, the left axis of the graph represents watts produced.  The white line is power produced and the red line is RPMs of the blades.  This graph is in real-time and shows about three minutes of generating time left to right.  The peak in this period is about 1800 watts (or 18 100 watt light bulbs for perspective).  The day before it was windier and even though the turbine is rated as a 2kW machine (2000 watts) we saw it peak as high as 3600 watts – just as in fishing “you should have been here yesterday!”

one year ago…”Rain at Last”