Most people don’t think about the power grid until the lights go out. You flip a switch, the lights come on, and that’s the end of it.
Our technicians don’t get that luxury. We’re the ones getting the call when a hospital’s generator didn’t kick on, when a grocery store’s freezers are warming up, or when a utility shuts off power to a whole county because the wind’s blowing too hard. And over the last few years, those calls have changed. There are more of them, they come from places that never used to call, and the outages last longer.
So let’s talk about where the US power grid actually stands right now, why it’s under so much pressure, and what you can do about it if your business can’t afford to go dark.
How Reliable Is the US Power Grid Right Now?
Short answer: it’s holding up today, but it’s running with less margin than it used to, and the people who run it are telling us that margin is shrinking.
The North American Electric Reliability Corporation (NERC) is the group that grades the grid every season. In its 2026 Summer Reliability Assessment, released May 19, 2026, NERC said every region had enough resources for a normal summer, and the number of elevated-risk regions dropped from six to three. That sounds like good news, and it partly is. Over 58GW of new capacity came online, including more than 16GW of battery storage.
But NERC’s own director of reliability assessments said the better numbers shouldn’t be read as overall risk going down. And the long-range forecast tells the real story. NERC’s 2025 Long-Term Reliability Assessment, released in January 2026, found 13 of 23 assessment areas face elevated or high risk of supply shortfalls over the next five years. Peak summer demand is forecast to climb by 224GW over the next decade, a 69% jump over the previous year’s projection.
Here’s how we’d put it on a job site: the generator starts and runs fine at light load. The question is what happens when you throw the full building on it.
Why the Grid Is Under So Much Strain
There isn’t one single problem. It’s a stack of them, and they’re all hitting at the same time.
Demand is climbing faster than anyone planned for
For about twenty years, electricity demand in this country stayed pretty flat. That’s over. Data centers, AI, new manufacturing, and electrification are pulling more power than the grid was built to deliver. NERC says new data centers are the main driver of load growth in many regions, and its forecasts only count projects that have moved past the “maybe” stage. The tech industry’s own numbers run higher.
We see this from the equipment side every day. The big OEMs are focused on filling orders for hyperscale data centers buying 2MW and 3MW units by the dozen. Lead times on large new generators, especially 1500kW and up, have stretched past 52 weeks, and sometimes past 60. If you’re a hospital, a water treatment plant, or a cold storage facility, you’re now waiting in the same line.
The infrastructure is getting old
The American Society of Civil Engineers gave US energy infrastructure a D+ in its 2025 Report Card, down from a C- in 2021. It was one of only two categories that got worse. The report’s energy chapter notes that 70% of transmission lines and 70% of power transformers are 25 years or older, and 60% of circuit breakers are past 30.
Anybody who’s worked on old iron knows what that means. Equipment that age can still do the job, but it doesn’t have much give left when you push it hard.
Reliable baseload plants are retiring
The US Department of Energy’s July 2025 Resource Adequacy Report warned that if 104GW of firm generation retires by 2030 without timely replacement, outage risk could rise 100-fold. Of the new generation expected by then, DOE counted only 22GW as firm power that’s available around the clock. Some analysts, including GridLab, have pushed back on those assumptions and say the number is overstated. But even the critics agree on the basic direction: demand is rising and the supply that’s always available isn’t keeping pace.
Big new loads are hard to predict
NERC’s 2026 summer report flagged something new: the unpredictability of large loads. A data center can swing its draw in ways a neighborhood never would. Grid operators are still learning how to plan around that.
Weather, Wildfire Shutoffs, and Regional Risk
A tight grid is one thing. A tight grid plus bad weather is where our phones start ringing nonstop. And every region we work in has its own version of bad weather.
Colorado: wind, wildfire, and planned shutoffs
Here on the Front Range, the outage you need to plan for might not be an accident at all. After the 2021 Marshall Fire, Xcel Energy started using Public Safety Power Shutoffs (PSPS), where the utility cuts power on purpose during high winds so a downed line doesn’t start the next wildfire. The first one hit about 55,000 customers during a 2024 windstorm. In December 2025, a shutoff across the Front Range affected roughly 115,000 customers. More followed in Larimer and Weld counties in January 2026, Boulder and Jefferson counties in March, and the San Luis Valley in April.
The part people miss is what happens after the wind dies down. Crews have to inspect every line before it gets re-energized, so power can stay off for a day or two, sometimes longer. During one wind event our service coordinator remembers, the winds lasted two days but some of our customers were without utility power for up to seven. We were running fuel nonstop to keep their generators going.
Colorado winters bring their own problems too. Diesel starts to gel in deep cold, and a generator sitting on untreated fuel won’t do you much good when it’s 10 below. That’s why we switch to winterized diesel months ahead of the season and offer fuel polishing and additive treatment for customer tanks.
Florida: hurricanes on a calendar
Florida is almost the opposite. Our Jacksonville and Pensacola crews know hurricane season is coming every year, so they can stage people and equipment in advance. The challenge is volume. When a storm hits, dozens of customers call at the same time, roads are blocked by downed trees, and every crew is stretched. A generator that wasn’t maintained before June is the one that won’t start in September.
Texas: heat, freezes, and a grid on its own
Texas runs most of its own grid through ERCOT, which means it can’t lean on its neighbors much when things go sideways. NERC rated ERCOT normal risk for summer 2026 thanks to a big jump in new resources. But its long-term outlook puts Texas at high risk of shortfalls by 2029, with the tightest hours on summer evenings and cold winter mornings. Winter Storm Uri in 2021 showed everyone what a deep freeze can do to that system, and our Austin team still plans around it.
Everywhere else
If you’re not in a hurricane zone or a fire zone, don’t get comfortable. Tornadoes, ice storms, heat domes, a car hitting a transformer, or a cyberattack can all take you down. We had a new apartment building lose power one Sunday morning because a driver hit an unprotected transformer. Our generator stayed on that site for three months while the utility got a replacement in.
What This Means for Your Facility
The planning question has changed. It used to be “what if the power blips for an hour?” Now it’s “what if it’s out for three days and I can’t get fuel?”
The cost of getting that wrong depends on what you do:
For a hospital, it’s measured in lives. Under NFPA 110, a life safety generator has to start and take load within 10 seconds, and there’s no partial credit when a patient is on an operating table.
For a grocery store or cold storage facility, it’s measured in spoiled product. We recently set a 2MW unit at a big-box store under remodel after a contractor trenching a wastewater line hit the main power feed. That generator wasn’t there for the construction crew. It was there to protect hundreds of thousands of dollars in refrigerated and frozen food. And believe it or not, plenty of supermarkets here in Colorado still have no backup power at all.
Agriculture and water treatment are a different kind of serious. When livestock or a town’s drinking water depends on a pump running, an outage stops being an inconvenience pretty quick. Data centers, well, uptime is the whole product. And for construction sites and everyday businesses, it’s lost production, lost inventory, and a crew that can’t work.
That last point is the one we come back to the most. Think about what one day without power costs your business. Then think about a week. For most of our customers, a single long outage would pay for the generator outright. And unlike an insurance policy, a generator holds its value. If you outgrow it or don’t need it in ten years, you can sell it and get a good chunk of your money back.
Timing matters too. With new large generators running a year or more out, waiting until after an outage to shop is a rough spot to be in. Good used units with low hours move fast, so if you find the right one at the right price, don’t sit on it.
What We Tell Customers From the Field
You can’t fix the grid. You can make sure your generator is ready when the grid lets you down. Here’s what our techs see over and over.
Batteries are the number one reason generators don’t start
When we get a failure-to-start call, it’s usually the battery. A starting battery might last eight or ten years in a car, but this is an emergency backup system. We recommend replacing generator batteries every 24 months, period. After that you’re rolling the dice. When a big storm shows up on the news, one of the first things our owner thinks about is the customers who decided to skip the battery replacement this year.
Fuel is the second
It sounds too simple, but people forget to fuel their generators. And even when the tank is full, old or dirty fuel can clog filters and take out an injector pump. Fuel sampling, fuel polishing, and the right additives keep it clean and stable. In cold climates, make sure you’re running winterized diesel before the first hard freeze, not after.
Plan for runtime, too. A large unit carrying a real load can burn through hundreds of gallons in a few hours. Know how long your tank lasts at your actual load and who’s going to refill it when every fuel truck in the region is booked.
Starting isn’t the same as carrying the load
A weekly exercise run tells you the engine turns over. It doesn’t tell you whether it can pick up your whole building. A load bank test takes the generator up to 80, 90, even 100% of its rated capacity for one to four hours while we watch oil pressure, coolant temps, voltage, and amperage across all phases. It also burns off carbon that builds up when a unit only ever runs light.
Nobody wants to hear it, but if your generator is going to fail, you want it to fail during a load bank test. That’s when we’re standing right there to fix it, not at 2 a.m. in the middle of a storm.
Stay on preventative maintenance
Twice a year, one of our techs goes through a 31-point inspection: batteries, oil, coolant, belts, hoses, block heaters, chargers, the transfer switch, all of it. It’s a heck of a lot cheaper than an after-hours emergency call plus the parts to go with it. And we’re not in the business of signing you up cheap and then hitting you with repairs. The whole point of a PM agreement is that your generator doesn’t fail.
Size it right the first time
Undersize a generator and you’ll trip breakers and get overload shutdowns. Oversize it and it runs too light, which leads to wet stacking: unburned fuel and oil blowing out the exhaust, and eventually real engine damage. Think about where your facility is headed, not just where it is today. And here in Colorado, remember that altitude cuts into a generator’s output, so a unit that’s perfect on the eastern plains might come up short in Vail.
Frequently Asked Questions About US Grid Reliability
Is the US power grid getting less reliable? The grid met demand in summer 2026, but its long-term outlook is getting worse. NERC’s 2025 Long-Term Reliability Assessment found 13 of 23 assessment areas face elevated or high risk of supply shortfalls within five years, mainly because demand from data centers and large loads is growing faster than new firm generation and transmission.
Which parts of the US have the highest blackout risk? For summer 2026, NERC flagged New England and the Pacific Northwest as elevated risk in the US. Over the next five years, NERC puts PJM, MISO, ERCOT (Texas), and parts of the West in its high-risk category.
Why are data centers affecting the power grid? A single large data center can draw as much power as a small city, and they’re being built faster than new power plants and transmission lines. NERC says they’re the main driver of load growth in many regions. They’re also buying up large generators, which has pushed lead times on new 1500kW-plus units past a year.
What is a Public Safety Power Shutoff? It’s a planned outage where a utility cuts power during high winds and dry conditions so its lines don’t spark a wildfire. In Colorado, Xcel Energy has used them repeatedly since 2024, sometimes affecting more than 100,000 customers at once. Power can stay off for a day or more after the wind dies down while crews inspect the lines.
How often should a commercial generator be serviced? We recommend preventative maintenance at least twice a year with a full inspection, plus an annual load bank test. Life safety systems covered by NFPA 110 have additional testing requirements. Starting batteries should be replaced every 24 months.
Should I buy a new or used generator right now? It depends on your application. For most standby needs, a low-hour used generator that’s been inspected, serviced, and load tested is a solid option and available now instead of a year from now. Large paralleled lineups or sites with strict redundancy specs can be a better fit for new equipment with a full factory warranty.
The Bottom Line
Power isn’t guaranteed. It never really was, but for a long time the grid was reliable enough that most people could pretend it was. That’s getting harder to do.
So here’s the one thing we’d ask every facility manager and business owner to do: picture what tomorrow looks like if the lights don’t come back on. What stops? What spoils? Who can’t work? Once you answer that, the plan pretty much builds itself.
Whether you need a generator sized and installed, a rental to bridge the gap, or a tech out to make sure the unit you already have will actually carry your load, we’re here. We’ve been in the power business for over 40 years, we work on every make and model, and when you call, somebody picks up. Even on a Sunday.