Last diary entry I went into a fair bit of detail about the hardware and the theory behind ‘balcony solar’ installations in Ireland, and I was hopefully persuasive about the theoretical potential reduction in electricity bills and theoretical return on investment of under two years. One major caveat is that we cannot legally export power to the grid in Ireland without gaining prior approval, for which a registered electrician has to submit the appropriate documentation for what they have personally installed. This rules out the type of DIY installed micro solar installation called ‘balcony solar’ which is based on pushing power in the opposite direction via a standard household appliance plug, up to 800 watts as per the legal maximum in many EU countries such as Germany. As a result, one needs to script and control the overall system to: Maximise the electricity not consumed from the grid. Minimise the electricity exported to the grid (which is wasted, but also illegal). The next post…
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