Electricity billing discrepancies and pricing options are becoming a growing concern as consumers look for ways to cut their energy costs. Reports indicate that nearly half of all households have a power capacity assigned to their electricity meter that doesn’t match their actual usage. If the power is set too low, it can cause circuit breakers to trip frequently, while an oversized meter often goes unnoticed, leading to unnecessary costs on the electricity bill. Across the country, these mismatches result in an estimated 300 million euros being spent annually on unused energy. To determine the correct power requirement for a home, consumers can track their electricity consumption over several days using their Linky smart meter. EDF, the major electricity supplier, also provides a table that lists the power consumption of common household appliances, helping users better understand their needs. It is important to check the meter number on the bill to ensure that no third party is being charged. According to the National Energy Ombudsman, 130 people faced meter assignment errors last year. To verify billing accuracy, consumers should compare the information on their electricity bill with that displayed on the Linky meter. Two key details— the Reference Measurement Point (PRM), which identifies the home’s address, and the meter’s serial number— must match. If there is a discrepancy, customers should contact both their energy supplier and Enedis, the electricity distribution company. If an overcharge is found, refunds can be issued for up to five years of overpayment. However, if the error benefits the supplier, they can only request repayment for the past 14 months. Choosing the right electricity pricing plan is another key factor in managing costs. The profitability of the peak/off-peak hours option depends on household habits. For this rate to be beneficial, at least 30% of electricity use should occur during off-peak hours, which vary by region. According to the Hello Watt platform, 20% of households have not selected the most suitable pricing plan. Over 3 million homes could save money by switching back to the standard rate, while nearly 3 million others would benefit from the peak/off-peak hours option. Online tools, including those provided by the National Energy Ombudsman, allow consumers to simulate and compare the financial impact of different contracts, helping them make informed decisions about their energy usage and costs.