The appointment of your own MOP gives you full control over incidental costs. In addition, you have independent and continuous access to your consumption data. MOP contracts are usually based on a five-year contract and cost around £250 – £600 per year, depending on the type of semi-dry delivery. Staying compliant is one thing, but automatic meter readings can provide more data than just a digital reading, so your supplier can provide accurate invoices. All measurement costs are charged on your invoice or, in the case of an existing half-hour delivery, through a meter operator or MOP contract. If you opt for a new numerator operator contract, you should first decide which HH MOP is best for you based on your requirements. The best way to do this is to discuss your needs directly with the HH MOP. .