SolarFood: Developing inclusive business model (BM) concepts for solar food drying in the Himalaya region

SolarFood aims to develop business models to promote the introduction of improved solar food drying technologies in Bhutan and Nepal.

Foto: Ruralis
Foto: Ruralis

Business models will be developed and tested with local stakeholders, particularly women-led agricultural cooperatives. In lowering post-harvest losses, SolarFood will contribute to addressing the issues of both food access / security and poverty reduction.

The goal is to improve the nutritional content of solar dried foods and developing marketable products that can provide a new income stream for women-led agricultural cooperatives.

The SolarFood project involves an international and interdisciplinary team of researchers, led by Ruralis – Institute for Rural and Regional Research in Norway. Partners include:

  • Lund University
  • Jigme Namgyel Engineering College, Royal University of Bhutan
  • Gedu College of Business Studies, Royal University of Bhutan
  • School of Management, Kathmandu University
  • Department of Mechanical Engineering, Kathmandu University

SolarFood builds on two previous research projects, both led by Lund University. SolarFood 1.0 and 2.0 emphasized the development of solar-powered technologies. SolarFood 3.0 instead focuses on the social and economic aspects of introducing solar dryers while improving and tailoring them to local contexts.

Project Group

Advisors

PhD students

 

Completed master’s theses related to the project

Year Country Title Author(s) Link
2025 Bhutan The Road to Improved Solar Drying: Barriers and Drivers for Wider Adoption of Solar Dryers in Rural Bhutan Noah Andreasson & Linda Lundevaller http://lup.lub.lu.se/student-papers/record/9209595
2024 Bhutan / Sweden Design, Analysis and Performance Evaluation of Indirect Solar Dryer Dechen Om & Tandin Jamtsho http://lup.lub.lu.se/student-papers/record/9141281
2024 Bhutan Enhancing Post-Harvest Preservation through Improved and Even Solar Drying: A Case Study in Bhutan Lara Constanze Müller http://lup.lub.lu.se/student-papers/record/9165837
2024 Bhutan Simulation and Modelling of Solar Dryer in COMSOL: Analysis of Airflow Christoffer Sörensson http://lup.lub.lu.se/student-papers/record/9151577
2023 Bhutan The Development and Testing of Low-Cost Heat Transfer Enhancements for Solar Dryers Hoda Mahmoodi http://lup.lub.lu.se/student-papers/record/9131736
2023 Bhutan Mitigating Post-Harvest Losses in Bhutan through Solar Food Drying: Optimization and Analysis Christian Rissler http://lup.lub.lu.se/student-papers/record/9124967
2024 Nepal Barriers and Drivers for Solar Dryer Adoption in Nepal  Ida Sonesson & Magnus Lundquist http://lup.lub.lu.se/student-papers/record/9163921
2022 Nepal Low cost thermal storage for solar dryers in the Himalayas Adam Karlsson http://lup.lub.lu.se/student-papers/record/9085069
2022 Nepal Development and testing of a novel solar dryer design with an incorporated heat exchanger – For use in the Himalayan regions Adam Probert http://lup.lub.lu.se/student-papers/record/9085862
2022 Nepal The impact of induced airflow on the drying process of apples inside a solar drying chamber Marion Karlsson Faudot http://lup.lub.lu.se/student-papers/record/9077722

News

Solar dryers, gender and alternative finance: field insights from Bhutan

In November 2025, the Solar Food team conducted a two-week fieldwork with several stakeholders in Bhutan. Among these…

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The SolarFood team kickstarts fieldwork in Bhutan and Nepal

Prof. Pia Otte and Dr. Isabelle Hugøy (both from Ruralis) travelled to Nepal in November where they met…

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Strengthening Solar Dryer Innovation Through International Student and Researcher Exchange

Work package 4 in the project is concerned with the technical development of the solar dryers and is…

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SolarFood Kicks Off in Nepal – Aiming to Empower Women in the Himalayan Region

SolarFood aims to develop business models for solar-dried fruit initiatives in Bhutan and Nepal. These countries experience significant…

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