In 90% of rentals in Manhattan, electric is the tenant's responsibility. Heat & hot water are usually paid for by the landlord. There are a few buildings in Manhattan like Tudor City, Ruppert Yorkville Towers & a handful of pre-war building that only have 1 meter so electric is paid for by the landlord. Sorry, but I'm pretty sure electricity is your responsibility & I was under the impression that there's a section about utilities on the Blumberg lease- go through it again.
You might want to contact your attorney but electric was include it would probably be mentioned in the lease.
I do believe you are supposed to have your own meter, so it's unusual to have any electricity without arranging for it with the electric company, (Con Edison?) ,so if you've had electric I can understand why you are surprised..I'm surprised that it hasn't been turned off! Manhattan apartments usuallly include hot water , heat and hall maintenance, basic locks,and garbage removal unless stated otherwise in your lease. (Some buildings have central heat and air)
Generally on most leases utilities are not included in the lease and are to be paid for by the tennant. On the other hand, when it comes to a short term lease, sometimes the utilities are included, but that must be stated on the lease.