7 factors to consider when choosing a solar O&M vendor in 2026

Choosing the right O&M vendor in India plays a key role in determining whether your system delivers consistent performance or gradually loses efficiency over time. With rising adoption of solar operation and maintenance services, selecting the right partner has become critical for long-term ROI. Whether you’re debating outsourcing O&M or just researching for the best one for your business, we have you covered.

As the Press Information Bureau notes, “solar capacity addition reached 34.98 GW, compared to 20.85 GW during the same period last year,” with total installed solar capacity rising to “132.85 GW in November 2025.” This scale of growth signals a clear shift: solar is no longer a peripheral investment but core infrastructure for businesses. And yet, for all the attention that goes into selecting the right panels and EPC partners, the question of who keeps that system performing over its 25-year life (U.S Department of Energy) rarely gets the same deliberation. So before diving into how to choose the right solar O&M vendor, it helps to first understand why having a dedicated one matters in the first place.