Energy Prices

[drmorgans]

This may be a dumb question, but here goes:

My gas/electricity fixed price deal expires early next year. I have a choice (cheapest to most expensive), variable, fixed (with a loyalty bonus), fixed. All are significantly more expensive (35% - 100% - 150%)

Two questions; is it worth the risk of going for the variable price deal; why are prices going up as the supplier claims to offer 100% renewable energy