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Case study 14 March, 2021 Battery / Energy StorageSolar PVWind Agriculture Micro/Mini-grid

Ryse Energy – Resilient Renewable Mini-grid (Ghana)

Who, What & Where

  • Ryse Energy
  • Resilient Renewable Mini-grid in Ghana
  • Ada Foah, Ghana

The Company

Utilising small-wind, solar and energy storage to create bespoke renewable solutions, Ryse Energy a global leader in decentralised renewable energy generation, providing renewable energy to some of the most challenging urban and rural environments.

We design and manufacture small wind turbines and hybridised off-grid solutions, and with more than 4,000 projects to date, decades of experience, and installations across all seven continents, Ryse Energy brings together the best knowledge, talent and technology available in the market today to drive innovative and practical solutions.

The Challenge

Whilst Ghana has one of the highest en­ergy access rates in Sub-Saharan Africa,29 access to energy in the remote agricultural and rural areas of the country is extremely challenging. High diesel costs and lack of infrastructure to reach last-mile communi­ties was the primary reason for the project.

A challenge faced was the change in sys­tem design. Initially, it was planned to de­liver a DRE system to enhance agricultural output through an increase in reliable en­ergy. As the project progressed, it became apparent that the entire village in Ada Foah was in a state of extreme energy poverty with no access to electricity. Therefore, the scope of the project was then changed to develop a hybrid solar-wind mini-grid DRE system to provide energy for agricultural activity as well as for other basic energy needs of the village. The system also re­quired hydraulic tilt-up towers for manual installation without the need for a crane.

Renewable Solution

A hybrid wind-solar mini-grid system was selected as the optimum solution. A farm was selected as the project site for the installation of the system based on the availability of a large open area as well as access to unobstructed wind. The system incorporates the following components:

  • 2 x Ryse Energy E-5 wind turbines, 220V, 5 kW
  • 1 x 40 kW PV solar array
  • 6 x inverters Studer XTH 8000-48
  • 250 x REC PV modules
  • 2 x banks of 48V batteries OPZV 3,500 Ah-C10

The DRE system is used as the area’s pri­mary energy source, providing over 316 kWh/day to the community and peak power of ~ 50 W. The different energy technologies complement one another to keep the generation flow constant day and night. Community training regarding op­eration and maintenance was undertaken to ensure the reliability and resilience of the system.

Project Financing and Costs

The total project cost was approximate­ly EUR 180,000 which was funded with a grant from the United Nations. Trama TechnoAmbiental owns the DRE system. In terms of ongoing operation and main­tenance, training was conducted by Ryse Energy’s team to the local communities to ensure resilience and reliability of the system. Operational costs are very low with the local community maintaining the system.

Project Outcome

The DRE system enabled agriculture to blossom as water pumping and irrigation systems can now be operated. In addition to that, the local community of around 500 people gained access to electricity for basic needs, such as lighting and heating. The resulting energy access would’ve re­sulted in a reduction of 85 metric tonnes of CO2 per year if fossil fuels were utilised which is the amount of emissions avoided. An estimated 200 lives were positively im­pacted by the installation, creating over 20 jobs within the community.

Next Steps

The potential for replication and scale-up of this system is extremely high, the com­bination of wind, solar and energy stor­age creates a resilient and reliable system which generates consistent renewable energy for agricultural needs and wider community services. Ryse Energy believes the collaboration with the local community, system design, energy output was a great success. The highlight is the change of the project design from a purely agricultural installation to a village mini-grid.