Inaccuracies in Metering System. The Primary Steam Meter reading shall be used for billing purposes unless the readings from the Primary Steam Meter and the Back-up Meter differ by three percent (3%) or more, in which event the metered amount shall be compared to calculated usage. Calculated usage means a computation intended to determine the amount of steam reasonably expected to be delivered by Seller to serve the Buyer's customers' requirements during a period with the same weather as occurred during the relevant period. For purposes of determining the weather for the relevant period, the Parties shall use heating degree days as recorded by the National Weather Service for Concord, NH (or if such data is not available, the data for Manchester, NH). Steam usage shall be calculated by analyzing and comparing previous months' usage, as adjusted for heating degree days. To determine the calculated usage, the Parties shall use the same methodology used by the Buyer for ratemaking purposes before the PUC to determine weather normalized usage. The difference between the previous payments by Buyer for the period of inaccuracy and the recalculated amount shall be offset against or added to the next payment to Seller, as appropriate. If the period of inaccuracy cannot be determined, it shall be deemed to have begun on the date which is midway between the date the meter was found to be inaccurate and the date of the last meter reading accepted by the Parties as accurate, but in no event more than six (6) months. In no event will any such adjustment be made for any period before the date on which the relevant metering system was last tested and found to be functioning properly and to be accurate within plus or minus three percent (3%).
Inaccuracies in Metering System. When, as a result of any test of the Main Metering Equipment, the Main Metering Equipment is found to be inaccurate by more than one-half percent (0.5%) or is otherwise functioning improperly, then the correct amount of Net Electrical Output delivered to Purchaser for the actual period during which inaccurate measurements were made, if any, shall be determined as follows:
Inaccuracies in Metering System. When, as the result of a Metering System test conducted pursuant to clause 12.2 (Testing of Metering System), any component of the Metering System required to be accurate to within plus or minus one-fifth of one per cent. (±0.2%) under this Agreement is determined to be inaccurate by more than plus or minus one-fifth of one per cent. (±0.2%) or is otherwise functioning improperly, then the correct amount of Electricity Delivered in any Hour to Goro Nickel or the electricity delivered to the Transmission System for the actual period during which inaccurate measurements were made, if any, shall be determined as follows:
