Solar-Powered Grain Milling in India

The evaluation of solar-powered community mills in Uttar Pradesh shows that utilizing idle solar irrigation capacity for milling reduces costs and travel distances for smallholders while improving food freshness. While the project yielded modest gains in women's autonomy and mobility, sustained adoption was hindered by operational challenges such as operator unavailability and infrastructure issues. The document recommends integrating secondary-use models into India's PM-KUSUM scheme to optimize solar asset utilization.

• Solar-powered mills provided measurable cost savings for users, who paid an average of INR 1.94/kg compared to INR 2.33/kg at diesel or electric mills, resulting in savings of approximately INR 100 per household per milling cycle.
• The proximity of solar mills significantly reduced travel distances for users, who travelled roughly 0.5–0.6 km, whereas diesel and electric mill users travelled approximately 1.1 km.
• The availability of closer and cheaper milling shifted household practices from bulk processing to need-based milling, which reduced spoilage and improved food hygiene and freshness. This also led to the processing of a more diverse range of products, including turmeric, coriander, and maize.
• The project led to incremental improvements in gender inclusion, with women reporting increased confidence, mobility, and decision-making autonomy, particularly when mills were reliably managed and centrally located.
• Sustained adoption was limited by structural and operational barriers, including poor road access, inconsistent flour quality, and the unavailability of operators. At the endline, 41% of households continued using Oorja as their primary mill.
• Retention rates varied significantly by village, reaching up to 65% in areas with consistent operator presence and competitive pricing, but falling below 30% in other locations.

APA

Agarwal, S., Vijayan, H., Mani, S., Laan, T., & Saxenan, A. (2026). Solar-Powered Grain Milling in India. International Institute for Sustainable Development. https://www.iisd.org/system/files/2026-02/beyond-irrigation-solar-pumps-india-summary.pdf

Chicago

Agarwal, Sejal, Hridya Vijayan, Sunil Mani, Tara Laan, and Abhinav Saxenan. Solar-Powered Grain Milling in India. International Institute for Sustainable Development, 2026. https://www.iisd.org/system/files/2026-02/beyond-irrigation-solar-pumps-india-summary.pdf.

Wikipedia

{{cite report |last1=Agarwal |first1=Sejal |last2=Vijayan |first2=Hridya |last3=Mani |first3=Sunil |last4=Laan |first4=Tara |last5=Saxenan |first5=Abhinav |title=Solar-Powered Grain Milling in India |publisher=International Institute for Sustainable Development |date=February 2026 |url=https://www.iisd.org/system/files/2026-02/beyond-irrigation-solar-pumps-india-summary.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{agarwal2026solarpowered, author = {Agarwal, Sejal and Vijayan, Hridya and Mani, Sunil and Laan, Tara and Saxenan, Abhinav}, title = {{Solar-Powered Grain Milling in India}}, institution = {International Institute for Sustainable Development}, year = {2026}, month = feb, url = {https://www.iisd.org/system/files/2026-02/beyond-irrigation-solar-pumps-india-summary.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }