There are two types of electricity packages: exchange price and fixed price packages. See the conditions of both and choose the best one for you.
The fixed price package is for you if you like to plan your expenses and do not wish to take price risks. Fixed price enables you to get electricity with a fixed price that does not change during the whole contract period. The exchange price package allows you to benefit from periods with a lower price, but you must also be prepared for the more expensive price periods. This package is for you if you wish to manage your electricity consumption according to current exchange prices.