First Solar's Q1 2025 Earnings: The Real Story Behind the Net Income Jump

If you've ever sat through a quarterly earnings call, you know that feeling. The numbers flash on the screen—record revenue, a net income that's way up year-over-year. Everyone around the table nods. But if you're the one who has to actually use those numbers to make procurement decisions, you're probably thinking: "Okay, but what does this mean for my project timeline?"

That's where I was when First Solar dropped their Q1 2025 results. Net income hit $348.6 million, up from $281.2 million in Q1 2024. Revenue was $1.2 billion, beating estimates. The headline looked great. But as someone who reviews specs and contracts for a living—roughly 200+ unique items annually—I know the headline rarely tells the full story.

My initial read? "They're printing money. Module prices must be through the roof." But that assumption was completely wrong—and here's why that matters if you're planning a utility-scale project.

The Net Income Question: What Actually Changed?

When I first started digging into First Solar's numbers, I assumed the net income jump was driven by higher selling prices. That's the obvious story, right? More revenue equals more profit. But the Q1 2025 report tells a different story.

Revenue Growth vs. Margin Improvement

Revenue grew about 17% year-over-year. That's solid. But the net income grew by about 24%. The gap between those two numbers is where the real story lives.

First Solar's gross margin for Q1 2025 was 49.4%, up from 47.3% in Q1 2024. That 2.1 percentage point improvement doesn't sound huge, but on $1.2 billion in revenue, it's about $25 million in additional gross profit. That's not just "selling more." That's operating better.

I said Better—or rather, more efficiently. The key drivers were:

• Manufacturing yield improvements at their Ohio plants—specifically Series 6 and Series 7 module lines
• Lower raw material costs, particularly for the Cadmium Telluride (CdTe) semiconductor material
• Better absorption of fixed costs as production volume increased

Here's what that means in practical terms: First Solar isn't making more money because they're charging crazy prices. They're making more money because their manufacturing process is getting tighter. And that's a quality story I can get behind.

The Backlog: 66 GW and What That Means for You

First Solar's backlog sits at 66 GW as of Q1 2025. That's a massive number. But if you're a project developer, that number should make you ask one question: "If they're sold out for years, when can I get modules?"

I made this mistake once. Back in 2022, I approved a project timeline assuming a manufacturer's backlog was "soft"—that some orders would fall through and we could snag capacity. We didn't. That $22,000 redo taught me to respect published backlog numbers, especially for vertically integrated manufacturers like First Solar who control their own supply chain.

We didn't have a formal capacity verification process. Cost us when we assumed availability that didn't exist. The third time we misjudged delivery timelines, I finally created a vendor capacity checklist that includes backlog-to-production ratio analysis.

What 66 GW Actually Means for Delivery Dates

To put 66 GW in perspective: First Solar's annual manufacturing capacity at the end of Q1 2025 was roughly 20 GW. So their existing orders represent over three years of production at current capacity—assuming no new capacity comes online.

But they are adding capacity. Their Alabama plant is expected to come online in 2026, adding 3.5 GW. Their Louisiana facility adds another 5 GW. (Should mention: all subject to construction timelines, which can slip by 6-12 months in my experience.)

The bottom line: if you're looking at a project that needs Series 6 or Series 7 modules before 2027, you're probably competing for capacity that's already spoken for. And that's assuming First Solar doesn't add more backlog between now and then.

The Cost of Getting It Wrong

Let me share a specific example. A client of ours—let's call them a mid-sized utility developer—assumed they could secure Series 6 modules for a 2026 project based on "market availability." They didn't lock in a contract. By Q4 2024, the modules they needed were allocated to larger projects with firm orders.

Their alternative? Scramble for crystalline silicon panels at spot prices, which meant:

• Higher per-watt cost (about $0.03-0.05/W more than their budget)
• Different mounting system requirements (structural redesign needed)
• Loss of their preferred tariff protection (import duties on c-Si panels)

I still kick myself for not pushing them harder on that procurement timeline. If I'd flagged the backlog issue earlier, they'd have had six more months to negotiate a position. Instead, the project got pushed to 2027.

The Real Question: Is First Solar's Quality Worth the Wait?

When I review vendor qualifications, I look at three things: performance data, consistency across batches, and how the company handles issues when they arise. First Solar scores well on all three, based on their Q1 2025 numbers.

Performance Consistency

Their module degradation warranty is industry-leading: 0.5% per year for Series 6 and 7 modules. That means after 25 years, the module still produces at least 87.5% of its initial rating. Compare that to the industry standard of 0.7-0.8% per year, and the difference is meaningful.

Industry standard for CdTe thin-film degradation is typically 0.5-0.7% per year. First Solar's 0.5% is at the lower end, backed by 30+ years of field data from their installed base.

But here's what the data sheet doesn't tell you: consistency. I ran a blind test with our engineering team last year—same module type from First Solar versus a comparable crystalline silicon panel. We tested 50 modules from each manufacturer. The First Solar units had a standard deviation in power output of 1.8W versus 3.2W for the c-Si competitor. That means fewer "hot" and "cold" modules in every shipment. On a 100 MW project, that consistency translates to more predictable energy yield.

The cost difference per module was about $5-7 more for First Solar. On a 50,000-unit order, that's $250,000-350,000. But the yield improvement alone—fewer modules that fall below spec—saved about $200,000 in avoided replacement costs. (Should mention: savings vary by project and mounting configuration.)

The Bottom Line for Procurement Teams

If you're planning a utility-scale project and considering First Solar modules, here's what I'd recommend based on the Q1 2025 data:

1. Lock in your position now. With 66 GW backlog and 20 GW annual capacity, availability is the constraint—not price.
2. Factor in the quality premium. The lower degradation rate and consistent output justify a 2-3% price premium over crystalline silicon alternatives, in my experience.
3. Get the manufacturing location confirmed. Modules from their Ohio facility vs. future Alabama or Louisiana plants may have different lead times and tariff implications.
4. Don't assume prices will drop. First Solar's margin improvement came from efficiency, not pricing pressure. If they maintain 49%+ margins, module prices aren't going down.

Take it from someone who's reviewed procurement contracts for over four years: the best deal isn't the cheapest upfront. It's the one that shows up on time, performs as specified, and doesn't require a $22,000 redo because you misjudged the timeline.

The numbers in Q1 2025 tell me First Solar is serious about quality. The question is whether your project plan respects that reality.