Microtek vs Su-Kam Solar Inverter 2026: Honest Comparison

Qbits warranty and service terms: Qbits’ public datasheets describe an expandable warranty but do not define the base term, remedy, registration deadline, service response time, or exclusions. Obtain the current written terms for the exact model and sale before relying on a headline claim.

ALMM and inverter compliance: MNRE’s current ALMM page publishes solar PV module and cell lists, not an inverter list. Verify the inverter’s exact model documents and applicable scheme or DISCOM requirements separately.

Many buyers weigh “microtek vs sukam” before buying a solar inverter, often sitting between two names they grew up with. Both brands earned their reputations in the 2000s backup-power era, when every Indian home needed an inverter and battery to survive load shedding. That history is exactly why this comparison is harder than it looks.

The solar market of 2026 is not the UPS market of 2010. Today’s buyer needs MPPT charge control, grid-tie compliance, ALMM-listed modules for PM Surya Ghar subsidy, and a service network that will still answer the phone in year eight. Legacy brand trust helps, but it does not guarantee any of those four things.

This post compares Microtek and Su-Kam on what actually matters for a solar purchase in 2026: current solar range, technology currency, warranty depth, service reality, and price. We also show where a modern specialist brand fits, because the honest answer for many buyers is neither of the two.

If you are also weighing the third big legacy name, our Luminous vs Microtek comparison covers that matchup. Our Luminous vs Su-Kam comparison follows the same format.

The Two Brands at a Glance

Microtek and Su-Kam are both Indian power backup pioneers, but they sit in very different positions today. Microtek lists an active solar range on its site. Su-Kam Power Systems, incorporated in 1998, went through insolvency (IBBI records: admitted April 2018, liquidation ordered 3 April 2019, closed 2 November 2022).

Both brands sell through dealers, and a distribution claim is a question to put to the seller for your pincode. The distinction that matters is that you are not just buying hardware: you are buying years of service, spares, and warranty honouring.

The founder of Su-Kam has described how the company’s dealer network dissolved during the insolvency period, per Inverter Man of India, 2026; that is his own account, not a tribunal finding. It is a reason to treat after-sales verification as your first checkpoint for either brand.

Solar Range in 2026: What Each Brand Actually Sells

This is where the two brands diverge most sharply. Range breadth determines whether you can match the inverter to your roof, load, and subsidy plan, or whether you end up compromising on day one.

Microtek’s current solar lineup covers three categories:

• Solar PCUs (off-grid, MPPT): 1 kVA to 5 kVA units with built-in MPPT charge controllers, designed for homes that want solar plus battery backup without grid export.
• Grid-tie inverters: on-grid string inverters for net-metered homes. Warranty is advertised at up to 10 years on the grid-tie line, according to Microtek’s grid-tied solar page, 2026.
• Solar UPS (PWM legacy): budget solar-compatible UPS units still sold widely online, many using older PWM charge control.

For a subsidised, net-metered residential rooftop system you need a grid-tie inverter, so check whether the exact model you are quoted is one: Microtek lists a grid-tied category, while the Su-Kam pages we read list a Solar Hybrid UPS range and no grid-tie string inverter.

Technology Currency: MPPT, Hybrid Options, and Monitoring

Technology currency is where legacy brands most often show their age. Three questions separate a 2026-ready inverter from a 2015-era one.

Is there a credible hybrid path? A modern hybrid inverter manages solar, grid, and battery through one unit, switches to backup in milliseconds, and supports lithium (LiFePO4) batteries. Microtek’s PCUs approximate this but lack true hybrid features like fast automatic switchover, zero-export control, and lithium BMS communication on most models. Su-Kam’s hybrid PCUs are closer to legacy UPS architecture with solar charging added. Buyers in power-cut states should understand this gap before choosing either. The on-grid vs hybrid vs off-grid decision guide walks through the topology question in detail.

How good is monitoring? Both brands offer LCD displays and, on select models, basic app connectivity. Neither offers the kind of WhatsApp-based daily generation reports and fault alerts that newer Indian brands have made standard. For a Tier-2 homeowner, monitoring that arrives on a channel they already use is not a luxury. It is how faults get caught in week one instead of month six.

Warranty and Service: The Real Ownership Cost

Warranty is the single biggest financial variable between these brands, and it is where the comparison gets uncomfortable for both.

Microtek advertises up to 10 years warranty on its grid-tie line (its grid-tied solar page, 2026); we quote no term for its PCUs. Service runs through dealers and a published service-centre locator, and response quality varies by town, so ask for the named service contact for your pincode.

We could not find a warranty term on the Su-Kam solar product pages we read. More important than the term is the enforceability: after the insolvency process, ask which entity issues and honours the warranty for your unit and what the service route is in your pincode, and ask your dealer how many warranty claims it has processed for the brand.

Price Comparison: Microtek vs Su-Kam vs the Modern Alternative

We found no dated store price for either brand’s solar inverters, so this page quotes none and makes no claim about which is cheaper. Get a dated written quote for the exact model that names the capacity, type, warranty and taxes, and compare the warranty term and remedy as well as the price.

Subsidy and Compliance: The ALMM Gate

This section matters more than any spec comparison if you are buying a subsidised system. Under PM Surya Ghar Muft Bijli Yojana, the central subsidy pays ₹30,000 per kW for the first 2 kW and ₹18,000 per kW for the third. It caps at ₹78,000 for systems of 3 kW and above, according to the PM Surya Ghar portal, 2026.

Three rules trip buyers up:

1. Modules must be ALMM-listed. MNRE publishes ALMM List-I for modules and List-II for cells, and no list for inverters, so check the inverter’s exact-model certificates and the DISCOM’s requirements separately.
2. The system must be grid-connected. Off-grid PCUs from either brand do not qualify, regardless of ALMM status. A Microtek or Su-Kam PCU with batteries is an off-grid or backup system in the scheme’s eyes.
3. The vendor must be registered. The subsidy application flows through the PM Surya Ghar portal via an empanelled installer.

Where Qbits Fits as the Modern Alternative

We make inverters, so read this section as an informed party, not a neutral referee. The case for considering Qbits alongside these two legacy names is one of design fit, not price or warranty. Qbits lists single-phase on-grid inverters (the QB 1.5 to 4.0KTLS and QB 4.2 to 6KTLS ranges) and QBH hybrid inverters, all with IP66 listed, so a net-metered rooftop and a power-cut home can each find a matching family. Check the current datasheets at download-datasheets for the exact model.

The Tradeoffs: When Each Brand Is the Right Call

No comparison is honest without admitting where the other side wins. Here is the balanced read.

Consider Microtek when: you want a grid-tie model from a brand that advertises up to a 10-year warranty on that line, you have a local dealer who can give a named service contact and the exact model’s written warranty confirms the term.

Consider Su-Kam when: you want a backup-led solar hybrid UPS, you have verified who issues the warranty and the local service, and the exact unit’s documents meet your load and battery requirements.

How to Verify Before You Buy Either Brand

The top 10 solar inverter brands in India 2026 list and the best 5 kW solar inverter 2026 use-case review are good next reads. Both widen the shortlist beyond these two names.

Elsewhere in the Heaven Group network, see Luminous versus Microtek and branded versus unbranded pricing.

The Bottom Line

Microtek vs Su-Kam in 2026 comes down to product type and to what each seller will put in writing: Microtek lists a grid-tied category with an advertised warranty of up to 10 years on that line, and Su-Kam’s site lists a Solar Hybrid UPS range, with the warranty issuer to be confirmed after its insolvency process. Buyers planning a subsidised 3 to 5 kW rooftop system should price a modern hybrid or on-grid alternative before deciding.

Your three next steps:

• Shortlist by topology first: decide on-grid, hybrid, or off-grid using your outage hours, then compare models within that category.
• Verify the exact quoted model’s certificates and warranty terms, in writing, before paying any advance.
• Contact Qbits with the site, load, equipment and document details relevant to this guide. Confirm the responsible party, deliverable, commercial scope and response time after submission.