Gabrielle Pickard-Whitehead Gabrielle Pickard-Whitehead is a professional freelance writer and journalist based in the United Kingdom. Since 2006, Gabrielle has been writing articles, blogs and news pieces for a diverse range of publications and sites. You can read "Gabrielle’s blog here.".

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  1. Can you really accurately compute your energy consumption? What if you are operating a building with tons of appliances?