Ask any New Yorker what they dread about summer, and electricity bills will be somewhere in that answer. In a city where July and August regularly push above 90 degrees, air conditioning isn't optional — it's survival infrastructure. And in 2026, with ConEd rates already climbing and the first heat advisories likely just weeks away, the time to think about your cooling setup is right now, not the afternoon you're sweating through a July heatwave.
Here's what you actually need to know — and what to do about it before Memorial Day.
What's Happening With NYC Energy Costs in 2026
Consolidated Edison submitted a rate increase proposal in early 2026 that, if fully approved, would push the average residential electricity bill up by roughly 10–15% over the next two years. Some of that increase has already been phased in. The rest is coming.
The Public Service Commission is reviewing it, and residents can comment — but realistically, rates are going up. ConEd's grid is aging, infrastructure investment is expensive, and the shift to electrification (electric vehicles, heat pumps, induction stoves) is increasing demand on the same system.
What that means in practical terms: if you spent $200 a month on electricity last July, expect $220–230 this July. In buildings where a single central air unit or multiple window units run all day, that can climb significantly higher.
The Cooling Cost Problem Is Specifically an NYC Problem
In most of the country, you have central air. You set a thermostat, the house cools, and you live your life.
New York doesn't work that way.
In the vast majority of NYC apartments — especially pre-war buildings across Brooklyn, Queens, and the Bronx — there is no central HVAC. You cool your apartment with window units, portable ACs, or you suffer. The city's old building stock, combined with dense urban heat islands (concrete and asphalt retain heat long after sunset), means your apartment runs hotter and your AC works harder than in a comparable home elsewhere.
There's also a real estate dynamic: in co-ops and older condos, your ability to install certain HVAC equipment is limited by building rules, electrical capacity, or window type. Many buildings cap what size window unit you can install per circuit. Some buildings forbid certain portable unit types entirely due to drainage requirements.
The result: most NYC apartments run equipment that's too small for the space, runs constantly, and costs more per BTU than it should.
The Four Moves to Make Before Memorial Day
1. Replace anything older than 7-8 years.
Air conditioners lose roughly 5% efficiency per year as they age. A 10-year-old window unit running at 50% efficiency on an 85-degree day in August is costing you real money every hour it runs — not just in electricity, but in the heat it's not removing from your apartment.
The current generation of inverter-based window ACs and portable units are meaningfully more efficient than what most NYC apartments are running. Units with high Energy Efficiency Ratio (EER) ratings — look for EER 12 or higher — can cut cooling costs by 25–35% compared to older units.
2. Right-size the unit for your space.
The single most common AC mistake in NYC apartments is buying the wrong size. An undersized unit runs nonstop and never actually cools the room. An oversized unit cycles on and off too quickly, doesn't dehumidify properly, and leaves the air clammy. A rough guide: you need approximately 20 BTUs per square foot of space. A 300-square-foot studio needs about 6,000 BTU. A 500-square-foot one-bedroom needs 10,000 BTU.
3. Upgrade to smart controls if you haven't.
Most NYC apartments don't have smart thermostats because they don't have central HVAC. But modern window units with built-in WiFi control (or a universal smart AC controller like Cielo or Sensibo, which plugs into your existing unit's IR receiver) can be scheduled, controlled remotely, and set to run only when the apartment actually needs cooling. Leaving an AC running all day in an empty apartment is the biggest single source of wasted cooling cost in the city. Smart controls eliminate it.
4. Check your unit's filter — seriously.
A clogged filter reduces airflow, forces the compressor to work harder, and can cut efficiency by 15% or more. Most NYC residents haven't touched their AC filter since last summer. Pull it out, wash it, let it dry, put it back. It takes ten minutes and immediately improves performance.
What to Actually Buy
For NYC apartments, the best equipment options fall into two categories:
Window units (best for most apartments): Look for inverter-based units from LG, Midea, or Frigidaire with EER ratings above 12. A properly sized unit with inverter technology will modulate its output to match the actual cooling load — running at lower speed when the room is already cool — rather than cycling on and off at full blast. This is the biggest efficiency gain available in standard window unit form.
Portable ACs (for apartments where window units aren't permitted): Portable units have gotten significantly better in recent years. Dual-hose portables are dramatically more efficient than single-hose units (which pull cool air from inside the room to exhaust heat, creating a negative pressure problem). If your building restricts window units, a quality dual-hose portable is the right move.
For both categories, Sylvane carries a well-curated selection of window and portable ACs with real spec data and filtering tools that make it easy to find the right BTU range for your specific room size. They also carry dehumidifiers, which matter in NYC — high humidity makes a room feel 5–8 degrees hotter than the actual temperature, and a good dehumidifier running alongside a right-sized AC can let you set the thermostat a few degrees higher without losing comfort.
If You Own Your Unit or Building: Go Further
Homeowners and co-op/condo owners have options renters don't.
Mini-split systems (ductless HVAC) have dropped significantly in price over the last few years. A single-zone mini-split with installation runs roughly $2,500–$4,000 in NYC, depending on the contractor and the unit. For a frequently used room, the energy savings and comfort improvement can justify that cost in 3–5 years.
The federal Inflation Reduction Act tax credit — which survived the 2025 budget negotiations — still provides a 30% federal tax credit on qualifying heat pump and HVAC equipment, up to $600 per unit, for homeowners. If you're replacing a window unit with a more permanent cooling solution, that credit is real money back.
Building-level HVAC upgrades for co-ops and small landlords are eligible for financing through the NYC Accelerator program, which pairs buildings with energy efficiency contractors and helps access low-interest financing.
The Bottom Line
Summer in NYC is coming regardless. The question is whether you spend the next four weeks getting your cooling setup right — or you spend August writing checks to ConEd while sweating in an apartment cooled by a 12-year-old window unit that's running at 60% of its original capacity.
The moves aren't complicated: audit your equipment, replace what's old, right-size what you buy, and put smart controls on whatever you run. Do it now, before prices spike in late May and inventory tightens.
Your future self — the one trying to stay comfortable in a July heatwave — will be grateful you didn't wait.
The Metro Intel covers real estate, local life, and practical money for New Yorkers across all five boroughs. Subscribe at themetrointel.com.