Is 900 dollars a month in electricity normal for a 2 bedroom 1300 square foot apartment ?

Somebody is probably leeching your power to mine BitCoin

Only if you’re growing marijuana .

My house is 990 square feet and I have never paid more than $150.00 running the air conditioning all day, and that is through southern California Edison at 23 cents a kWh, which is double the US national average.

I would be very, very concerned if I hit $300, let alone three times that.

That would depend on where you are, what in the apartment uses power (Such as heat, AC, water heating, etc.), how the place is insulated, and what the rates for power are in the unstated place which this hovel is to be found.

WHAT!!!!'

No. more like 60 to 150 bucks a month depending if you have electric heat.

nope         .

Absolutely NO.  That's far too high. I have a 1300 square foot HOUSE and only pay less than $100 per month. There is something very wrong. Call your utility company and ask them to check it out. Perhaps there is a past due bill attached to yours for some reason--or someone is using your electric--or the meters are bad. They will need to audit this and explain it to you. 

900 a month?

I have a 3 bedroom Home Australia Sydney on a 1/4 acre Block and i only pay  $109 .00 on Gas and $159.00 on electricity that $266 a  month are your services gold plated

My Home 3025 ft2 I dont Know where the 3025 has anything to do with electricity fees

Not where I come from, but it has occurred in my lifetime.  When it did we asked for the power company to come investigate why and It was discovered my neighbor tapped into my power without me knowing.  It can also occur by a malfunction of your air conditioner.  When that does occur you can ask your landlord to fix it, but you remain on the hook for the power charges.

Holy cow...where do you live? Beverly Hills? In the summer my electric is 70 bucks for 2000 sq. feet. In the dead of winter it's 250.  900 sounds ridiculous.