fixed tariff

Fixed rate prices will give you the security of knowing how much your energy bills will be. Going fixed or variable is very much a tactical decision. If energy prices go up a fixed rate will leave you without the worry of increased bills. However, if energy prices fall you will not benefit from that change.

I think it might be wiser to wait a couple of months if you’re thinking of changing to a fixed tariff.
As the weather warms up, you should find you use a lot less gas on heating, and your bills will start coming down.

My latest bill (Feb-Mar) is £99.90, down from the Jan-Feb Bill of £142.82, and should continue falling, so it wouldn’t make financial sense for me to change to a fixed rate tariff of something like £50 per fuel per month.

Just worth noting your rates are going to be adjusted soon regardless of tariff - OVO has permission from the government to knock off a levy which may see your rates (and bills) drop a little. They’ll let you know what the impact will be once it’s been verified.