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.
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…
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…
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…
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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