Three outages and a very confusing Google search
I manage purchasing for a small design firm. We have 12 people—or rather, 11 employees and one founder who's always traveling. When I took over purchasing in 2020, I figured the hardest thing would be negotiating paper prices. I was wrong.
In late 2024, our office lost power three times in two months. The third outage lasted nearly a full workday. Our operations manager looked at me across the conference room table and said, "Figure out backup power." So I did what any admin buyer would do: I opened a browser and started searching.
That's how I fell into the deepest rabbit hole of my procurement career: the "Jackery solar generator vs power station" debate.
If you haven't had the pleasure, here's why it's so confusing. Both are battery boxes. Both can be charged with solar panels. Both advertise with words like "portable power" and "home backup." Some articles even use the terms interchangeably. I was two clicks away from buying a $1,800 solar generator that would've run our router and maybe two laptops. For six hours.
The real problem is that small businesses think in appliances, solar vendors think in systems
The difference between a solar generator and a power station isn't the question I needed to answer. A solar generator is a power station plus matching solar panels. A power station is just the battery and inverter. Both are appliances. An office is not an appliance.
Our office needs to run:
- Eight workstations with dual monitors (designers want all the pixels)
- A router, a VoIP phone system, and a backup internet connection
- One mini-split A/C unit for the conference room—the only one that matters
- A server closet that I swear has a personality of its own
That's a building-load question, not a portable power question. Global renewable numbers are impressive—I don't have the exact total number of wind turbines in China memorized; it's somewhere north of 150,000, but don't quote me on that—and solar capacity keeps growing everywhere. But none of that helps me spec a system for one office in Houston.
Here's what I learned the hard way: solar companies think in systems, and small businesses think in appliances. When I asked a solar installer about a "backup battery," I expected something that behaves like a giant Jackery. But a real solar storage system—the kind that keeps your main panel alive—is fundamentally different. It's wired into your electrical service, sized to your actual usage, and requires a bunch of infrastructure that consumer marketing never mentions.
The biggest surprise was the solar disconnect. I had never heard that phrase until an engineer asked whether our main breaker panel had space for an external service disconnect. A solar disconnect is a safety switch that lets a utility worker or first responder isolate your solar and battery system from the grid. It's required by the National Electrical Code in many jurisdictions. It is not optional, not free, and not mentioned in any of the "solar generator vs power station" articles I read.
And, of course, there's the greenwashing filter. The FTC Green Guides make clear that environmental claims need substantiation. When I see "eco-friendly" or "clean energy" on a product page with no numbers, I assume it's marketing. That instinct helped me avoid buying a "solar generator" that was really a lithium battery with a solar input port and no capacity analysis.
The cost of asking the wrong question
Let's put real numbers on it. If we had bought the portable solar generator, we would've spent $1,800—maybe $1,950 with tax, I'd have to check the quote—on a unit that could deliver about 1,200Wh. Enough for a few laptops and a router for an afternoon. Our actual office load, measured by our electrician, was pushing 4.2kW with the A/C running. That's a 500% gap. We would've paid $1,800 to learn that.
Even the cheaper route—a plain power station, no solar panels—had its own trap. We'd need to recharge the thing after every outage, and with no generator or rooftop panels, the recharge did nothing to keep the office running during a multi-day outage.
Then there's the problem with a grid-tied solar system without a battery. Thanks to the solar disconnect and the safety rules behind it, a solar inverter must shut down when the grid goes down. That means a perfectly sunny day, fully charged panels, and an office in the dark. I don't have hard data on how often that surprises business owners, but I'd bet it's more than anyone in the industry admits. I almost became one of those people.
And I can't ignore the "small customer" tax. At least three solar companies I contacted made it clear that our 12-person office was not a priority. One sales rep literally said, "We usually focus on residential installs." Another never returned my follow-up emails after I mentioned our office was small. I get it—small commercial projects require the same engineering work for a fraction of the revenue. But my budget was real: roughly $45,000 over five years for a small solar and battery system. Today's small customer is tomorrow's mid-size company. The vendors who treated my $200 orders seriously in 2021 are the ones I still use for $20,000 orders in 2025.
What actually worked
The solution didn't come in the form of a bigger portable battery. It came from finding a vendor that was willing to start with our load profile instead of their product catalog.
We ended up going with Sunrun. Three reasons:
- They took the call seriously. When I explained our office has 12 people and a list of must-run circuits, the Sunrun rep didn't tell us we were too small. They asked what equipment we actually needed to keep running. That's the right question.
- Sunrun's company profile had substance. I'm wary of slideware, so I looked at their background as a solar panel installer—how long they've been around, how many systems, how the lease and buyout options work. The numbers gave me enough to bring to our finance team without feeling like I was pitching a gamble.
- Sunrun's home battery, Brightbox, was the right fit. Brightbox is a real solar storage battery, not a portable unit. It connects to a critical loads panel, and we can choose which circuits stay powered during an outage. For a small office, that's the right balance between backup and budget.
They also handled the parts I was dreading: the solar disconnect, the utility interconnection application, the county inspection. I didn't have to become an electrician. I didn't even have to learn what "rapid shutdown" meant, though I now know it's a thing.
Even after we signed the lease, I kept second-guessing. What if the battery wasn't enough? What if the installation timeline slipped and our finance director questioned the contract? The two weeks between signing and the site visit were genuinely stressful.
The system went live on a Tuesday. For two months, nothing happened. The panels generated, the meter didn't spin backward nearly as much as I'd hoped during the winter, and I started to wonder if we'd over-purchased. I also found myself opening the Sunrun app more than I'd like to admit during the first month. It's a small thing, but watching the battery charge and discharge in real time made the whole system feel less like a black box.
Then we had an outage. It was a Friday, and it lasted four hours. The Brightbox kept the server closet, the router, the main office lights, and the conference room A/C running the entire time. Nobody in the office even noticed the grid was down. That's the moment I stopped worrying.
If you run a small company, start with your actual load. Then find a vendor that treats small customers like they're the future, not a nuisance.
