docs.google.com/spreadsheets/d/1EjDtnM7j1FnEPJ4IOQpKq169lIwJOO9agKgRBqr7TIY/pubchart?oid=1273845391&format=image http://www.celsiusenergy.net/p/powerburn.html years/piles of coal to burn #msg-132486624