anchor: An assumption of 1125 tons of steel is a conservatively high estimate since 500 MWe FGD retrofit installations have been completed with as little as 250 to 375 tons of steel, or 0.5 tons of steel per MWe.
positive: An assumption of 1125 tons of steel is a conservatively high estimate
negative: An assumption of 200 tons of steel is a conservatively high estimate