Ontario Power Generation has burned its last piece of coal at its plant in Atikokan.It happen Tuesday.
The facility is being converted so it can generate electricity from the burning of biomass by the end of 2014.
The temporary shutdown allows for further work at the plant to proceed.
Cost of conversion is pegged at about 170-million dollars.
Since it was first commissioned in 1985, the plant has generated over 19.5 billion kilowatt hours of electricity using coal.
