SMA Inverter FAQ: Tripower, 2023 Shipment Numbers, and the 24VDC Battery Charger Questions People Actually Ask

I'm the office administrator for a 31-person solar installation company. I manage equipment ordering—roughly $2.4M a year across 14 vendors—and I report to both operations and finance. I'm not an engineer. I'm the person who has to make sure the spec on the purchase order matches the spec on the invoice, and that the installer isn't waiting on a truck.

These are the SMA inverter questions I get from our crew and from integrators. If you're considering SMA equipment, these are the answers I'd give on a phone call.

• Is SMA an inverter brand I can trust? Yes, with caveats.
• What is the SMA Tripower inverter? A three-phase string inverter family for commercial and industrial systems.
• What do SMA's 2023 inverter shipments tell you? About 20.5 GW of scale, not a quality rating.
• Can I use a 24VDC battery charger with an SMA inverter? Not the way most people hope.
• What is a Lion solar generator? A portable battery power station, not a replacement for a grid-tied inverter.
• What's the difference between a generator and an inverter generator? One produces raw AC; the other cleans it up with electronics.

Is SMA an inverter brand I can trust?

Yes, with a caveat. I don't have hard data on total unit failure rates across every manufacturer, but based on our orders over the past five years, SMA's consistency is solid. More importantly, their documentation is better than most. In my first year, I made the classic spec error: assumed all inverters with the same kW rating had the same DC input range. Cost me a site visit and a very patient explanation from our lead installer. SMA's datasheets made the correction obvious.

According to SMA's 2023 annual report (sma.de/en/investor-relations), the company sold 20.5 GW of inverter output in 2023. That tells me they're a viable warranty partner. It doesn't tell me the inverter is right for every site. But when a client sees a clean, labeled, professionally commissioned SMA plant, it reflects on us. That brand impression matters, especially on commercial jobs.

What is the SMA Tripower inverter?

Sunny Tripower is SMA's three-phase string inverter family. It's not a single product, to be clear. The line covers commercial and industrial solar from around 20 kW to well past 100 kW, depending on model and grid code. The Tripower units include multiple MPP trackers, high DC voltage inputs, and options for integrated string monitoring. That's useful on shaded roofs because you can see string performance without adding a separate monitoring box.

I want to say the current commercial models start near 20 kW and go up to 150 kW, but don't quote me on exact model numbers because SMA refreshes those. If you're ordering one, the model suffix matters more than the marketing name. A Tripower unit approved for one utility may not be approved for another. Check that before you issue the PO.

What should I check before ordering an SMA Tripower?

Start with the usual: DC input voltage, MPPT voltage range, AC output voltage, and grid code compliance. Then check the commissioning and RMA path. Most buyers focus on price per watt and completely miss warranty claim speed. The question everyone asks is “what's your best price?” The question they should ask is “what's included if a unit fails in year three?”

We didn't have a formal serial-number logging process two years ago. Cost us when a Tripower failed and we couldn't find the proof of purchase quickly. Now every serial gets logged at delivery. That's an administrative thing, but it's the difference between a two-day RMA and a two-week paper chase. I should add that this matters more on commercial jobs than residential. A failure on a commercial rooftop can cost more in lost production than the inverter itself.

SMA 2023 inverter shipments: what does 20.5 GW actually mean?

I'll be honest, I wish I had tracked our own shipment mix by model more carefully over the years. What I can say is that SMA's 2023 inverter shipments reached 20.5 GW according to their annual report. That number is a useful signal of scale, service network, and supply chain strength. It is not a quality certification. Market share doesn't tell you whether a specific model fits your voltage and grid profile. Put another way: 20.5 GW is a scorecard, not a spec sheet.

For a purchaser, the practical takeaway is spare parts and support. A company shipping at that scale is more likely to have a regional warehouse and a stable firmware team. Still, confirm the local support level for the specific model. The GW number doesn't guarantee local stock.

Can I use a 24VDC battery charger with an SMA inverter?

Not the way most people hope. A 24VDC battery charger is meant to charge a 24V battery bank, not to run an SMA solar inverter. Most SMA grid-tied and hybrid inverters operate with DC voltages in the hundreds of volts. The SMA Sunny Island off-grid line is built around 48V battery systems and manages battery charging itself. If you need a true off-grid setup with a 24V battery, SMA isn't the natural fit.

If someone does have a separate 24V battery for a small cabin, telecom site, or RV, a 24VDC charger can work—but it's independent of the solar inverter. Check the battery chemistry first. Oh, and make sure the charger's voltage setpoints match the battery manufacturer's spec. A lead-acid profile and a lithium profile are not interchangeable.

What is a Lion solar generator, and do I need one?

A Lion solar generator is a portable power station with solar input, charge controller, battery, and AC inverter in one box. The name is a little misleading because it's not a fuel-burning generator. It's really a battery with an inverter and solar input. It's not an SMA product, and you don't need one to make an SMA inverter work.

Where it can fit: as backup power for critical loads during an outage. A customer with an SMA grid-tied system will still lose power when the grid goes down unless they have a battery backup system. A Lion solar generator can power a router, modem, and a few lights without installing a whole-house storage system. It can also make a decent demo unit for customers who want to understand “solar generator” before committing to something bigger.

What's the difference between a generator and an inverter generator?

A conventional generator spins an engine at a fixed speed to produce AC power directly. If the load changes, the engine speed can dip, and voltage/frequency can wobble. That's the main reason sensitive electronics sometimes struggle on cheap portable generators.

An inverter generator produces AC first, converts it to DC, then electronically reconstructs clean AC at a stable frequency. Because the engine can adjust speed to the load, inverter generators tend to be quieter and more fuel-efficient. They're also safer for laptops, phones, and anything with a microprocessor.

But “inverter generator” is not the same as a “solar inverter.” SMA's inverters convert solar DC to grid-synchronized AC. An inverter generator burns fuel to produce clean AC independently. The word “inverter” creates the confusion. If you're choosing backup power, the question isn't just “generator or inverter generator?” It's “what loads do I need to cover, and for how long?”