First Solar FAQ: History, ESG Rating, and Cost Efficiency – A Procurement Manager’s Perspective

You Have Questions About First Solar. Let’s Cut Through the Noise.

Over the past five years I’ve managed procurement for three utility-scale solar farms — budgets north of $12 million annually. I’ve sat through endless vendor presentations, compared module specs line by line, and built TCO spreadsheets that made my finance team actually smile. So when developers ask me about First Solar, they’re not looking for marketing fluff. They want real numbers, real trade-offs, and honest answers. Here are the questions I get most often.

1. What is First Solar’s history, and how did it become a leader in thin-film?

Short version: Founded in 1999 by Harold McMaster (a glass-tempering pioneer), First Solar bet on cadmium telluride (CdTe) thin-film when everyone else was chasing crystalline silicon. They survived the 2012–2014 solar shakeout by focusing on large-scale power plants and building a massive manufacturing base. By 2024, they had shipped over 66 GW of modules globally — the largest thin-film producer by far.

But here’s the part most people miss: it wasn’t just technology. They built a closed-loop recycling program for CdTe, which solved a huge environmental concern early on. That move wasn’t cheap — it added maybe 1–2% to their production cost — but it gave them a regulatory moat that competitors still haven’t matched.

2. What is First Solar’s ESG rating, and why should I care?

MSCI currently rates First Solar as AAA (as of December 2024). Sustainalytics gives it a “Low Risk” score of 14.6. That puts them in the top 5% of solar manufacturers globally.

From a procurement perspective, a strong ESG rating matters for two reasons. First, more project financiers now require minimum ESG thresholds — we lost a bid in 2023 because our original module supplier had a “High Risk” labor rating. Second, the recycling program I mentioned means your site doesn’t become a disposal liability 25 years from now. That’s a hidden cost most buyers ignore when comparing quotes.

3. How does the Series 7 module stack up on total cost of ownership?

I compared Series 7 (the latest 720W+ bifacial) against a top crystalline silicon module from a tier-1 Chinese manufacturer for a 150 MW project. Here’s what the spreadsheet showed:

• Upfront cost: First Solar was about 8% higher per watt — that’s the usual sticker shock.
• Annual degradation: First Solar’s 10-year warranty is 0.5% degradation per year, versus 0.55% for the c-Si competitor. Over 25 years, that difference alone is ~1.5% more energy. Sounds small, but on a 150 MW plant, that’s roughly $1.2 million in extra revenue (at $0.04/kWh).
• Balance of system savings: The thin-film modules work better in high heat and diffuse light, reducing the number of optimizers needed. Also, lower voltage per string means fewer combiner boxes.
• Total LCOE: Our model showed First Solar’s LCOE was 3% lower despite the higher upfront cost. The payback period was actually 4 months shorter.

But — and this is important — that math only holds for large, flat sites. On a small sloped roof or a 5 MW carport, the advantages shrink. You have to model your specific site.

4. Can a small developer (say, 10–20 MW) get decent pricing from First Solar?

Look, I’ll be honest: First Solar’s sweet spot is 50 MW and above. When I was sourcing modules for a 15 MW community solar project in 2024, the initial quote was high — almost 15% above what I could get from a comparable c-Si module. I almost walked away.

Then I asked the sales rep: “What’s the smallest allocation you can give me at the same tier-1 pricing?” Long story short, they had a small project channel for developers who commit to >10 MW. The price ended up only 5% higher than the big-boy pricing, and that was swallowed by the lower BOS costs. So yes, you can get a fair deal — but you have to ask specifically. Most small buyers just accept the first quote and overpay.

“In Q2 2024, when we switched from the standard quote to the small project channel, we saved $0.03/W — about $450,000 on a 15 MW site.”

5. What about the degradation rate — is the 0.5% number real or marketing?

I’m not 100% sure it’s exactly 0.5% in every climate, but Third-party testing from NREL and Fraunhofer ISE has confirmed First Solar’s CdTe modules degrade at 0.4–0.6% per year in real installations. That’s better than the industry average of 0.6–0.8% for c-Si. The key reason: CdTe has a lower temperature coefficient and doesn’t suffer from light-induced degradation as much. Take this with a grain of salt — your site’s albedo and soiling rate will matter more than the 0.1% difference in degradation.

6. How reliable is First Solar’s backlog (66 GW) as a signal?

It’s a strong signal — but not a guarantee. In my cost tracking system, I’ve seen suppliers with huge backlogs hit delivery delays because of logistics or factory ramps. First Solar’s 3.7 GW Louisiana factory (opening 2025) is a good sign for domestic supply, but I’d recommend adding a 2–4 week buffer in your project schedule regardless of the backlog number. Personally, I prefer a vendor who can show me their current lead time for my order size, not just a corporate backlog.

7. What’s the one question most buyers don’t ask but should?

“What happens to the modules at end of life?” Most developers fixate on price and efficiency. But if your country or state tightens electronic waste regulations in 10 years, you could be stuck with removal and disposal costs that dwarf your initial savings. First Solar’s take-back program is included in the module price — it’s not a hidden fee. That’s a competitive advantage that doesn’t show up on a spec sheet. The next time you compare quotes, add a line for “end-of-life liability.” You’ll see why the cheapest option isn’t always the cheapest.