$600 electricity bill for 500 sqft?!?

Hi y’all, I just moved to NYC so please be kind. :)

Looking for advice on what course of action may be available to me and my fellow tenants, here’s the situation:

We live in a late-19th century era brownstone in Brooklyn that was bought out by a large property manager (cough Freestone) and “gut renovated” last year. All 8 units were leased September 2024 and after. Despite the surface-level appeal of this apartment (in-unit W/D), clean modern look), things have been slowly falling apart, but nothing has fallen directly out of legal bounds.

The biggest issue is that everyone’s electricity bills are sky-high, with ours amounting to $400 and $600 for a 1-bedroom, 500 sqft apartment. ConEd’s website says our energy usage is 3x what it should be for a similar apartment. We do all the energy conservation things: appliances on sleep at night, close the blinds, keep the temp below 65. I would say things are hardly toasty over here. Notably we are responsible for electricity bills and we only have electric baseboard heating units.

We are lucky in that we live on the top floor and have a hallway baseboard unit in addition to the ones in-unit, but the lower three floor hallways don’t have any heating source and are absolutely frigid. Our neighbors downstairs report cracked window frames with literal holes and a lack of floor insulation, while I can see drafts of wind blowing our blinds and bringing cold air into our apartment.

We have reached out to management with our concerns on 4 separate accounts and not heard anything. 311 doesn’t have an issue that falls within our specific case (there’s a No Heat Complaint which doesn’t exactly apply here.) Are we just SOL and have to stomach these insane utility bills?