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.
Question: What is the minimum size generator that I need to run my 26âtrailer with air conditioning as well as the microwave or TV? Answer: We cannot give you a specific answer because we do not know the specifications of your air conditioner, microwave, TV nor how long you intend to running them nor in what combinations.