Shelley was a key member of a close circle of visionary poets and writers that included Lord Byron; Leigh Hunt; Thomas Love Peacock; and his own second wife, Mary Shelley, the author of Frankenstein.
If the 900 watts means the input power, then 1000 w inverter would be ok. If the microwave produces 900 w of cooking power, you will need a bit more, maybe 1200-1400 w if you don't know what the input power rating of the microwave is.
Microwave to stove clearance. I'm curious to know if different AHJs have different clearance requirements for over-the-stove microwaves. I've been using 16 or more inches without any arguments, but somebody told me they can be as low as 12 inches. Man, I don't know about that. Join the #1 Electrician Forum Today - It's Totally Free!