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Direct Current in the home

PeterRT

With more and more in the home being powered off DC (Direct Current) supplies, e.g. Battery & Solar Panels, then wouldn't it be more economical to consider extending the regulations to cover DC in the home avoiding the need for transformers?

For example, this is particularly appropriate now that lighting is dominated by LED.

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          There is no standardisation amongst my laptops and gadgets on the DC voltage they expect for recharging.  Deriving an appropriate voltage is easy when starting with 230v AC, a suitable transformer, rectification, maybe switch-mode clipping, and smoothing.  But if you start with DC then I guess you would need a rotary converter or, when the required voltage is lower than supplied voltage, I suppose you could use a woefully inefficient voltage divider.  May I suggest that in UK we stick with the distribution of alternating current electricity to domestic customers.

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          There is no standardisation amongst my laptops and gadgets on the DC voltage they expect for recharging.  Deriving an appropriate voltage is easy when starting with 230v AC, a suitable transformer, rectification, maybe switch-mode clipping, and smoothing.  But if you start with DC then I guess you would need a rotary converter or, when the required voltage is lower than supplied voltage, I suppose you could use a woefully inefficient voltage divider.  May I suggest that in UK we stick with the distribution of alternating current electricity to domestic customers.

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