India’s small and medium‑sized enterprises (SMEs) continue to rely heavily on fossil fuel generators to manage unreliable grid supply and frequent power outages. For many businesses, generators are not optional; they are a core component of operational continuity. However, the dominant technology in use today – diesel generators – is costly to operate, highly polluting, and increasingly misaligned with India’s clean energy trajectory.
Zero‑emission, solar‑based generators offer a viable alternative. While these systems can deliver comparable reliability while significantly reducing lifetime energy costs and carbon emissions, their adoption among SMEs remains limited. The primary constraint they face is not technological maturity, but access to appropriate financing.
We engaged with a range of sector stakeholders, including solar distributors, industry bodies, lenders, and impact investors to validate our understanding of the market and identify what support would effectively address financing needs for India’s SMEs. This summary presents three critical financial mechanisms that, if deployed effectively, could unlock access to solar generators for Indian SMEs at scale
The role of generators – and the case for solar alternatives
For SMEs, access to reliable power underpins productivity and competitiveness. Consistent electricity supply enables uninterrupted production, timely order fulfilment, workforce efficiency, and protection against revenue losses associated with outages.
Diesel generators have historically met this need due to their availability, familiarity, and established supply chains. However, they impose high and volatile fuel costs, ongoing maintenance requirements, and significant environmental and health externalities.
Solar generators – typically comprising solar panels, battery storage and inverters – can provide equivalent backup and off‑grid power services without fuel dependency or emissions. Over their operating lifetime, these systems already deliver substantial cost savings relative to diesel generators, and declining battery prices are expected to further improve their economic performance.
The persistence of diesel generators therefore reflects not a lack of viable alternatives, but structural barriers to adoption.
The financing constraint facing solar distributors
Most SMEs do not procure solar generators directly. Instead, deployment is driven by local solar distributors who source, install and maintain systems, often under service‑based or pay‑over‑time business models.
These distributors are a critical leverage point in the market. However, their capacity to scale is constrained by limited access to affordable working capital. Traditional lenders face difficulties assessing distributor creditworthiness due to unfamiliar business models, limited balance sheets, and the fact that solar assets are deployed at customer sites rather than held by the distributor.
In addition, customer receivables are rarely accepted as collateral, and lenders typically require high levels of external security. These factors combine to make financing either prohibitively expensive or unavailable, preventing distributors from meeting growing demand and slowing the transition away from diesel generators.
Three outcomes required to unlock market growth
Addressing this bottleneck requires a catalytic approach that enables finance to flow through existing market actors, rather than bypassing them. The objective is to strengthen the interaction between distributors and local lenders and reduce structural misalignments in risk perception.
- Increased availability of working capital for solar distributors
Dedicated, ring‑fenced credit lines can support distributor working capital needs related to inventory procurement and system installation. By sharing risk with local lenders, these facilities can improve capital circulation and support business growth.
Outcome: Distributors are able to scale operations without persistent cash‑flow constraints. - Reduced collateral requirements for lending
Risk‑sharing instruments, such as first‑loss protection or cash collateral substitutes, can lower lenders’ reliance on hard collateral that distributors are often unable to provide.
Outcome: Lending becomes viable for a broader set of creditworthy distributors. - Improved recognition of solar assets and receivables
Enhanced data availability, asset registries, and receivables verification can support lenders in accepting solar equipment and long‑term customer payments as collateral, aligning credit assessment with the underlying economics of distributor business models.
Outcome: Lending decisions are based on demonstrated asset performance rather than legacy assumptions.
Why this matters
By targeting distributors and local banks, these mechanisms address the core financial barriers limiting solar generator deployment. They also support lender learning in a new asset class, enabling a transition from concessional support to mainstream commercial financing over time.
For SMEs, the resulting impact includes lower energy costs, improved reliability, reduced exposure to fuel price volatility, and environmental and health benefits. More broadly, unlocking access to solar generators represents a productivity and competitiveness opportunity for a segment that is central to India’s economic growth.
We are looking to progress this idea further, including expanding our view across the South Asia region. If you are a donor, lender or distributor active in the Indian, Nepalese or Bangladeshi market and interested in partnering or supporting a pilot phase, please get in touch. We would be happy to share further collateral, such as our concept note for a South Asia Working Capital Facility, and continue the conversation. You can connect with us at ZE-Gen.org.