| http://www.w3.org/ns/prov#value | - Supplying electricity at peak times (those times when we are all using a lot of electricity) has a range of impacts: It adds to our electricity costs because higher demand often means higher market prices.it is hard on the environment because more of the less attractive forms of generation must be run to meet them.It adds to the amount that Ontario needs to invest in the system because meeting the p
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