Eprimo called me 2x and want to offer me a current price guarantee. This should be backed up to 26 cents per kw / h of the price. Thus, the contract period of the end of 2015 will be extended to mid 2016. Because of the special right of termination. They said that I can not make use of the law, if the current price increase is made for a control. They also said that the tax in 2014 was increased 2x. In CHECK24 I have electricity provider found, which sell electricity for 24 cents per kw / h.
Because I do not trust all electricity suppliers I ask here if I should make the electricity price guarantee or not.