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Colin Harkness

Smart grid, silly investment? Your smart home grid article (see issue 357, p26) was fascinating and an excellent example of the enjoyment of technology for its own sake. But the “savings” reported don’t consider the upfront investment and the risks. I recently had a £9K quote for a solar and battery system on my east/west-facing roof. It was estimated to save £15.5K energy, a net of £6.5K, after 25 years, which is the predicted life of the panels. This quote didn’t include the cost of buying and fitting a new inverter and battery after 12 years, which would be £3K at today’s prices. That leaves me with a net gain of £3.5K after 25 years. This quote assumed I used their solar+battery tariff for 25 years and that this offered the same…

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PC Pro (Digital) - 1 Issue, July 2024

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