Match puissance and option
A Base tariff has one energy price; an heures pleines/heures creuses tariff separates time periods. The subscription relates to the chosen power level. Compare like-for-like meter power rather than mixing a 6 kVA subscription with another account’s tariff.
TTC prices already include tax
The EDF examples in the library are published tax-inclusive prices. The comparison starts their additional tax field at zero. For an offer expressed before tax, enter the correct applicable treatment separately rather than copying a single percentage without checking the contract.
Use the hours assigned to your meter
An off-peak option needs your actual consumption in the applicable periods. Do not assume all overnight hours are off-peak. Keep monthly subscription amounts separate from energy and enter the number of billing months explicitly. Exceptional services and adjustments remain outside the quoted components.