Category: Smart Irrigation

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Aston University partners with Solargen and UoN

Aston University partners with Solargen and UoN to improve crop production in Kenya by up to 50%

  • Aston University enters 15-month knowledge transfer partnership with Solargen Technologies and the University of Nairobi to develop irrigation system powered by solar and wind energy
  • Crop yields will increase by 30 to 50% using control and sensor systems to deliver optimised amount of water for soil conditions
  • Results of the collaboration will support farmers in Kenya and increase company revenue by 77%.

Aston University has teamed up with engineering company Solargen Technologies (SGT) and the University of Nairobi through a Knowledge Transfer Partnership (KTP) to develop a smart irrigation system using solar and wind energy to provide year-round watering of land to improve crop production in Kenya.

A KTP is a three-way collaboration between a business, an academic partner and a highly qualified researcher, known as a KTP associate. 


olargentechnologies is a leading energy, water and irrigation solution and service provider in Kenya. They work in partnership with non-governmental entities, government, and individuals to serve communities in rural and conflict-affected parts of Eastern Africa through customised solutions that meet their energy, water and food security needs. 

Kenya’s economy is agriculture-based, but over 80% of its land is dry. Farmers cannot depend on rain-fed agriculture due to unpredictable rainfall and frequent drought, therefore an irrigation system is required. SGT’s current irrigation system is solar powered and requires large batteries and manned operation to maintain efficiency, resulting in high operating and maintenance costs and issues with performance during cloudy days. 

This KTP will use a hybrid source of solar and wind energy to power ‘smart sensors’ and ‘control systems’ to automatically deliver the right amount of water for a given crop type and maintain the required soil moisture level, resulting in increased crop yields.

T he Aston University team will be led by Dr Muhammed Imran, senior lecturer in mechanical engineering and an established researcher in the area of renewable energy systems, especially hybrid energy systems. He will be supported by Dr Tabbi Wilberforce Awotwe, lecturer in mechanical engineering and design and an established researcher in the area of sustainable energy systems and optimisation approaches. 

Dr Imran said: “We are delighted to design the hybrid solar and wind energy system for this smart irrigation system, which will have a positive impact on primary crop production, increase the availability of safe and healthy foods and improve the welfare of farmers and their families in rural Kenya.”

They are collaborating with Professor Ayub Gitau and Dr George Kamucha from the University of Nairobi. Professor Gitau is an associate professor and dean for the School of Engineering and a professional agricultural engineer. Dr Kamucha is a senior lecturer and chairman for the Department of Electrical and Information Engineering who has extensive experience in advance control systems as well as advance model predictive control systems. 

Badr Shariff, managing director at Solargen Technologies, said: “The project will bring together Aston University’s expertise in hybrid energy, the University of Nairobi’s expertise in irrigation systems and our expertise in system integration and solar energy to develop a market leading irrigation system with increased reliability and low operating and maintenance costs.”

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Solargen’s climate smart agriculture in N. Eastern Kenya

North Eastern Kenya is one of the regions hardest hit by perennial drought and famine. The situation has been made worse by the effects of climate change as the region has not received adequate rainfall for the past 5 years. As a result, the livelihood of the nomadic communities in the area is now threatened with many abandoning the villages to set up camp in urban centers. The continued rural-urban migration is expected to exacerbate food insecurity in the region unless concerted efforts are made to scale up food production through climate smart agriculture.


t may not be known to many but the region has great potential for agriculture. Tana river, the longest river in Kenya, cuts right in the middle of Garissa town while Mandera has a seasonal river called Dawa. The areas along the banks of the two rivers are very fertile and can be used for irrigation farming. Though underutilized, the farmers along the two rivers produce some of the sweetest bananas and watermelons in Kenya. They also grow tomatoes, mangoes, onions and lemons. Wajir on the other hand has a water table that is near the ground surface making water easily available through the sinking of boreholes and shallow wells.

I n spite of the potential, the farmers in the area are currently a frustrated lot with many contemplating quitting farming. The biggest challenges they face are the high cost of farm inputs and exploitation by middle men who offer them low prices for their produce. The farmers lack the knowledge and the support to employ modern techniques of farming resulting in crop failures and poor yields. Those who manage to get good harvest sell their produce to aggregators who dictate the prices. The farmers lack refrigeration facilities to preserve their produce to enable them fetch better prices in the market. When it rains elsewhere, especially in the slopes of Mt. Kenya, the river Tana bursts its banks and floods the entire area under cultivation. The farms become inaccessible and the produce is left to rot in the fields. The area is also infested with parasites that the farmers are unable to control. While the people of the North are not known for farming, these challenges have made farming even more unattractive.

It is against this backdrop that Solargen Technologies Limited, a leading energy, water and irrigation solutions provider, recently set up its regional headquarters in Wajir to offer farmers integrated solutions that comprises irrigation technologies, production planning, training, financing and market linkages. In the pilot phase, Solargen will design and install solar powered drip irrigation systems for 40 farmers on Pay As You Go (PAYGO) financing model. The system will enable the farmers harness Solar energy to power their water pumps instead of using costly diesel powered generators while the drip irrigation will ensure optimal use of water.

The Pilot phase is targeting farmers with over 3 acres of arable land and a source of water, either from the river or underground. The farmer selection process is currently ongoing.

Cognizant of the saying; you reap what you sow, the farmers will be supported right from the selection of seeds and fertilizers and in the analysis of soil type and water requirements. Solargen is investing in long term relationships with reputable suppliers of seeds and fertilizers allowing it to propose quality and affordable options to the farmers. During the course of the production, the farmers will have access to expert advice from agronomists and extension officers employed by Solargen. The farmers will also be trained on farming best practices to equip them with skills that will make them more resilient in facing their day to day challenges. We have set up a model farm adjacent to our Wajir office that will be used by the farmers for benchmarking.

To mitigate the post-harvest challenges of market access, Solargen plans to, in the short term, have agreements with off-takers of horticultural produce such as hotels, restaurants and exporters. However, plans are already underway to build refrigeration facilities in each of the counties to enable farmers preserve their produce and access lucrative local and international markets.

For this plan to bear fruits, Solargen will work with all stakeholders including government, developmental agencies, local leaders and communities. The transformation of Northern Kenya into a leading horticultural producer will require the collective effort of every stakeholder. We plan to do our part.