I'm so sorry to break it to you, I know it's a difficult thing to comprehend in these days of narcissistic social media presence, but you really aren't that special, and your electricity company really couldn't give a **** when you take a shower or watch tv
Edit 2: Removed personal information.
You're rows on a database, nobody has to care about you to find you in a select query.
The times and dates of energy usage, when they inevitably get stolen and uploaded to a tor site, will be a burglars wet dream.
Optimal times to rob your house, feel free to love it, that's your choice.
The energy company will benefit from your and others data for predictive analysis.
How good is their security, will they share that data to others in the same shell corporation?
Do they truly comply with privacy by design or use your data in dev and OAT environments?
Will foreign contractors see your unobfuscated records in test data, is the data stored in the UK?
I'm a professional in this field and ignorance is bliss.