Good morning Donald,
Welcome to the BAA. It is a great organisation to be a member of.
Reading your message- It looks like you are well on your way, with the equipment you own, to making serious contributions to a section of your choice.
You have already had some good advice from the members on here.
I think the ED 80 would be an ideal telescope to use for white light solar observing.
I am a member of the BAA solar section, and submit my observations in white light and Ha, using my PST.
William has also mentioned “Luner” observation. Your telescope will be very good for this purpose.
There are many, many, more sections within the BAA that I could mention. But I hope I have given you some pointers.