Has anyone saved by switching electricity supplier?

Is it worth changing from iberdrola standard tariff from 2006 if you just use your place as a holiday home for a few weekends and a 3 weeks holiday?

I have change recently to FORTULUZ after 23 years with Iberdrola, I am currently saving 30% a month. If I had changed 20 years ago my saving would amount to 9000 euros??

We changed to Gana Energia.. https://ganaenergia.com a long time ago now must be 2 yrs, we used to pay Iberdrola €100 plus a month we now pay on average €72 a month, please remember all energy providers will be changing soon to the new enforced rates and everyone will be on the same peak off peak and mid rates.