We bought this place about a year and a half ago and it came with 2 stacked E541s. We have wanted to change over to gas because we know how much more efficient it is (my dad also works in HVAC) but I’ve been happy with the way they have performed so we haven’t changed. I dont have our cost/kw hr handy, but our electric bill this month is $860. This is with no AC, but also a very large 9 door walkin/retail cooler, 2 pepsi coolers, a prep table, a drop freezer, standup freezer and a deli cooler. We run both ovens from about 2pm to 9:30pm.
The building is coming up on 20 yrs old. I don’t know if these are the original ovens, but it wouldn’t surprise me if they were. I was always very happy with their performance. About 3 months ago, I left after disagreements with the family. After a month I came back and they didn’t seem to be working the same. The temp has been wildly fluctuating (getting hot) and they don’t seem to recover when adding several pizzas at once, as someone said above. In the past though, this was never a problem. We would do large orders and fit 5 15" pizzas in at a time with no drop in temp. (There’s room for 6, but I left an empty spot to make spinning halfway through easier.)
Long story short (too late), I’ve been happy with them overall. Even the recent issues I’ve been able to work through after trying different things and problem solving. I still want to go gas eventually, but I’ll have to be pretty sure I’ll get the same results or better if switch.
Good luck.