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If you want to know what I'm on about in the shortest time then please read the introductory first post and my current action plan. Comments are very welcome. And if you like this blog, please tell a friend. Thanks!

Sunday, 29 March 2009

Stats update

It's the end of March, about to start a new calendar quarter, and a good time to review data for the quarter just ending.

Here's an interesting figure: our 1kW PV array has produced exactly half as much energy this quarter as our home has consumed. On average, the array produced 4.20kWh per day since the start of January while we consumed 8.40kWh per day. Just a coincidence - but a nice neat 50% figure nonetheless. Got me musing about the possibility of doubling the capacity and going off-grid.

On average, we exported 1.84kWh per day to the grid, which is just under half of the energy produced by the panels. Doing the sums, we must have imported just over 6kWh a day from the grid to meet our household demands.

The new fridge has been pretty steady at just under 1.5kWh per day, or 18% of our total needs. And the energy-guzzling computer my employer provided has been kept in check with an average daily consumption of 0.38kWh, or around 4% of our total. It has taken some very aggressive energy saving measures to achieve that, but I'm reasonably happy with that result.

Just one more factoid to close out the post. This week our PV array crossed the 1MWh line for total energy produced.

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