It's easy, just install it in every place you need! I've been using this product for almost three years now without any problems or complaints from my customers (except one :p).
Just make sure everything works as expected before deploying such system because sometimes we have issues with our electricity supply due no fault but ours - which makes us look like fools when those things come out later than planned ;) Also keep track about how many times they are turned off during day time so if there will be some problem regarding their turnoff then don't worry too much cause most probably nobody would notice them being powered down :) They also provide me monthly statistics reports where i can see all data related to energy consumption through last month period including usage/demand per device type etc..