backup power for apartments and condos — your real options

I get emails about this more than almost anything else on the site. Someone lives in an apartment or a condo. The power goes out. They start searching "generator for apartment" and end up confused because most of the advice out there is written for people with houses, garages, and yards.

That advice doesn't apply to you. And a lot of it is dangerous if you try to make it apply.

So here's the honest version. I'm not going to pretend there's a perfect solution for apartment backup power, because there isn't. But there are real options that work, and I'll tell you exactly what they are, what they cost, and what you can realistically expect from them.

why apartments are harder for backup power

Let's start with why you're in a tighter spot than someone with a house. It's not one thing — it's a stack of constraints that all hit at once.

you can't run a generator indoors

This is the big one, and it's non-negotiable. Portable generators burn fuel — gasoline, propane, or natural gas — and they produce carbon monoxide. CO is odorless, colorless, and lethal. The CDC says generator-related CO poisoning kills roughly 70 people per year in the US, and hundreds more end up in emergency rooms. Most of those deaths happen because someone ran a generator in a garage, on a covered porch, or near an open window.

A generator needs to be at least 20 feet from any window, door, or vent. In an apartment building, that's physically impossible. Your balcony doesn't count. Your parking garage doesn't count. The hallway definitely doesn't count. If you can't get 20 feet of open-air separation from any building opening, you cannot safely run a generator. Period.

HOA and lease restrictions

Even if you could find a safe spot — say you have a ground-floor unit with a patio that opens to a large courtyard — your HOA or lease almost certainly prohibits it. Most apartment complexes and condo associations have explicit rules against generators. The reasons are straightforward: liability, noise complaints, fire risk, and the fact that exhaust fumes drift into neighboring units.

I've heard from condo owners who tried to get HOA approval for a small portable generator on their patio. It doesn't happen. The insurance implications alone make it a non-starter for any HOA board that's paying attention.

noise is a real problem

Even the quietest portable generators — the Honda EU2200i, for example — run at about 48-57 decibels. That's a normal conversation level. Now imagine that running continuously at 2 AM in a building where your neighbor's bedroom is 15 feet from your balcony. It's not going to fly. Multi-unit housing and generators are fundamentally incompatible because of shared walls, shared air, and shared patience.

no permanent installation option

Homeowners can install a standby generator with a transfer switch. That's not available to you as a renter, and it's rarely available to condo owners without major board approval and significant shared infrastructure changes. You're limited to solutions you can set up, use, and store entirely within your own unit.

what actually works: portable power stations

A portable power station is a large battery with a built-in inverter that converts stored DC power to standard AC outlets. No fuel, no exhaust, no noise beyond a quiet fan that kicks on occasionally. You charge it from a wall outlet when you have power, and it sits there waiting until you don't.

For apartments, these are the right answer for several reasons:

• They work indoors. No exhaust, no carbon monoxide. You can run one in your bedroom closet if you want.
• They're silent. Most produce less than 30 dB under load — quieter than a refrigerator. Your neighbors won't know it's running.
• They're portable. A 1,000Wh unit weighs about 30 pounds. You can move it, store it in a closet, and take it with you when you move.
• No installation required. Plug in to charge. Unplug when the power goes out. Plug your stuff into the power station instead of the wall.
• No lease or HOA issues. It's a battery. Nobody can tell you that you can't have a battery in your apartment.

The tradeoff is runtime. A battery has a fixed amount of energy. Once it's drained, you need power to recharge it — which is exactly the thing you don't have during an outage. A generator can run indefinitely as long as you feed it fuel. A battery runs until it's empty.

That tradeoff matters less than you'd think for apartment dwellers, because the things you need to power in an apartment are mostly low-draw devices. More on that in a minute.

how to size a portable power station for an apartment

Sizing is simpler for an apartment than for a house because you have fewer things to power and the things you do have draw less energy. Here's what the math looks like.

figure out your essential loads

In an apartment, your realistic essential loads during a power outage are:

*Fridges cycle on and off. A mini fridge typically runs its compressor about 8 hours out of 24.

Add up your actual devices. For most people, the essentials come to 800-1,500Wh per day. Add 15% for inverter efficiency losses, and you're looking at roughly 920-1,725Wh of battery capacity to get through one full day.

the sizing tiers

• 500Wh ($300-500): Phones, laptop, LED lights. Gets you through one night. This is the bare minimum.
• 1,000Wh ($500-900): All of the above plus a CPAP and a fan. Solid 12-16 hour coverage. Good for most apartment situations.
• 1,500-2,000Wh ($1,200-2,000): Everything above plus a mini fridge and longer runtime. Gets you through a full 24 hours with room to spare. This is the sweet spot if you can afford it.

For a deeper dive into wattage calculations, my sizing guides cover the math in detail.

best portable power stations for apartments

I've tested a lot of these. Here are the ones that make sense specifically for apartment and condo dwellers, where portability, noise, and indoor safety matter most. I have a full breakdown on my best portable power station page, but these are my picks for the apartment use case.

best overall for apartments: Bluetti AC200MAX

2,048Wh of capacity, 2,200W output, 62 pounds. This is more power station than most apartment dwellers will need, but the expandability means you can start with the base unit and add a B230 battery pack later if you want more runtime. LFP battery chemistry gives you 3,500+ cycles, which at one outage per month is decades of use. At $1,899, it's the best balance of capacity, output, and value.

check price on Amazon

best budget option: EcoFlow RIVER 2 Pro

768Wh of capacity, 800W output, 17.2 pounds. This is the one I'd recommend if you're a renter who doesn't want to drop $2,000 on backup power. Under $500 on sale, light enough to carry with one hand, and enough capacity to charge your phone 50+ times, run LED lights all night, and keep a CPAP going for 8 hours. It won't run a fridge, but for the basics, it's excellent. And at 17 pounds, it fits in a closet without displacing anything.

check price on Amazon

best for medical devices: Jackery Explorer 2000 Plus

2,042Wh, 3,000W output, expandable to 12,000Wh. If you depend on a CPAP, oxygen concentrator, or other medical device, you need more headroom than the budget options provide. The Jackery's higher output handles the startup surges from medical equipment, and the expandability means you can build up to multi-day runtime. The 3,000W continuous output is the highest in its class. At $2,499 it's not cheap, but neither is a hospital visit because your oxygen concentrator died at 3 AM.

check price on Amazon

what you can realistically power (and what you can't)

This is where I have to be straight with you. A portable power station in an apartment is not going to replace your grid connection. It's going to keep the essentials running while you wait for power to come back. Here's what falls into each category.

you can power these easily

• Phones and tablets. A modern smartphone battery is about 15-20Wh. Even a 500Wh station will charge it 25+ times.
• Laptops. Most laptops draw 40-65W. A 1,000Wh station gives you 13-20 hours of use.
• LED lights. A 10W LED bulb replaces a 60W incandescent. Three of them running for 8 hours is 240Wh — nothing.
• CPAP machines. Most modern CPAPs draw 30-60W. A 1,000Wh station runs one for 14-28 hours. If you use heated humidification, the draw is higher — turn that off during outages to extend runtime.
• Wi-Fi router. 10-15W. Run it 24/7 on a 1,000Wh battery and it barely registers. Your internet may be down anyway if the local infrastructure lost power, but if it's not, keep your router alive.
• Small fan. A USB or small desk fan draws 5-40W. Hugely worthwhile during a summer outage.
• Mini fridge. A compact dorm-style fridge draws 80-100W but cycles on and off. On a 2,000Wh station, you'll get 20+ hours of runtime.

you probably can't power these (or shouldn't try)

• Air conditioning. Even a small 5,000 BTU window unit pulls 500W continuously. On a 2,000Wh battery, that's 3.5 hours. Not worth the battery drain.
• Electric space heaters. 1,000-1,500W. They'll drain even a large power station in 1-2 hours. Layer up instead.
• Full-size refrigerator. Draws 100-200W with compressor surges up to 800W. A large power station can run one for 10-15 hours, but it'll eat most of your capacity.
• Electric stove or oven. 1,000-5,000W. Not happening on battery power.
• Hair dryer, microwave, toaster. All high-draw appliances that will drain your battery in minutes. Not worth it.

building an apartment emergency power kit

A power station alone isn't enough. You need a complete kit that addresses the specific challenges of riding out an outage in a multi-unit building. Here's what I recommend, starting with the power station and building out from there.

the essentials

• Portable power station (1,000-2,000Wh). This is the backbone. Keep it charged to at least 80% at all times. Charge it fully when storms are in the forecast.
• USB charging cables and a multi-port USB hub. Charge everything from the station's USB ports when possible — it's more efficient than using AC outlets.
• LED lanterns or string lights. Battery-operated LED lanterns are better than flashlights for area lighting. USB-rechargeable ones can top off from your power station.
• Battery-powered or hand-crank radio. When your phone battery is precious, a $20 radio keeps you informed without draining anything important.
• Portable phone charger (20,000mAh). A $25 power bank charges a phone 3-4 times and saves your main power station for bigger loads.

comfort and safety

• USB-powered fan. Draws almost nothing. Makes a summer outage survivable.
• Warm layers and blankets. Your heat isn't coming from electricity during an outage. Dress for it. A good sleeping bag rated to 30F is more effective than trying to run a space heater on battery power.
• Non-perishable food and water. Three days minimum. Focus on foods that don't need cooking or refrigeration — canned goods, peanut butter, crackers, dried fruit.
• Medications. If you take anything that needs refrigeration (insulin, for example), a small insulated cooler with ice packs extends your window significantly.
• Cash. Card readers don't work without power. Keep $100-200 in small bills.

I wrote a full power outage kit guide that goes deeper on every item, including specific product recommendations. And my what to do when the power goes out guide covers the first-hour priorities most people miss.

a note for condo owners

If you own your condo, you have slightly more flexibility than a renter — but not as much as you'd think. Some condo owners with ground-floor units and private patios can technically get away with a small portable generator outdoors during an outage. But "technically possible" and "good idea" are different things.

Before you buy a generator, check your condo association's CC&Rs (covenants, conditions, and restrictions). Most explicitly prohibit generators. Even if yours doesn't, consider the liability: if your generator's exhaust drifts into a neighbor's unit and they get sick, you're legally exposed. And you'll definitely hear about it at the next HOA meeting.

For most condo owners, a portable power station is still the right call. It avoids every HOA issue, every neighbor conflict, and every safety concern. You can spend the energy you'd waste arguing with your HOA board on actually preparing for the next outage instead.

solar charging: your one recharge option

Here's the one advantage apartment dwellers sometimes overlook. Most portable power stations accept solar panel input. If you have a balcony, a south-facing window, or roof access, a foldable solar panel can extend your runtime indefinitely — at least on sunny days.

A 100W foldable solar panel runs about $150-250, weighs 10-15 pounds, and can recharge a 1,000Wh station in roughly 12-14 hours of decent sunlight. That's slow, but it's something — and it's the only way to recharge during a multi-day outage when you don't have grid power.

A window won't give you full efficiency (glass blocks some of the spectrum), but it's better than nothing. A balcony with direct sun exposure is much better. Set the panel at an angle, connect it to your station, and let it work while you wait.

This won't fully recharge a large station in one day. But recovering 30-50% of your capacity daily means you can stretch a single charge across several days if you're disciplined about what you power.