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Energy Globe Award

With more than 182 participating countries and over 2000 project submissions annually the Energy Globe Award is today's most prestigious environmental prize worldwide. It distinguishes projects regionally, nationally and globally that conserve resources such as energy or utilize renewable or emission-free sources. Award ceremonies are held all over the world. Prominent personalities as well as Energy Globe Ambassadors in 90 countries support the mission of Energy Globe. The activities of Energy Globe attract worldwide media attention - international TV stations report each year with approximately 1,000 hours of broadcasting time. The aim of the Energy Globe is to raise global attention on sustainable, everywhere applicable environmental solutions and to motivate people to also become active in this area.

National ENERGY GLOBE Award Zambia 2018

Submitted by: BayWa r.e. Solar Projects GmbH
PV and battery system for AKTC farm to improve farming and irrigation

This project involves the installation of a 260 solar modules with an output of 86 kWp produce energy for the irrigation of 90,000 m2 of arable land. When more energy is produced than currently needed, a 160 kWh battery storage system serves as a buffer. This system provides the farm up to 13 hours without interruption with 450 kWh of renewable energy for the operation of the irrigation system.

Initial situation
Zambia's power supply is quite weak and unreliable, making it difficult to provide electricity continuously. One of the main reasons is the dependence on water power plants which can't produce the necessary energy during dry seasons. Not only the power supply is affected but also the water supply since the pumps also rely on electricity. As the Zambian agriculture is dependent on the irrigation of the agricultural land during the winter, the unstable power supply affects the harvest of the farmers and the supply of the markets with food.

Solution
In cooperation with the Agricultural Knowledge & Training Centre operated by the German and Zambian Ministery of Agriculture, the pilot farm is supplied with electricity from the PV system between 7 a.m. and 6 p.m., making it independent from the public network. Customers can agree on periods of power cuts with the grid operator so that the power supply during evening and night hours will be stable. Apart from providing this model farm with reliable and green energy, one of the main goals was to show interested local customers this kind of technology.

Innovation
This project offers the first and only system of this kind in Zambia which offers a stable as well as predictable power supply without the use of fossil fuels and operates independently from the public network. The integrated operation of the irrigation processes on the farm is another novelty in the context of Zambian agriculture. In order to save energy for the cooling of the batteries and the control technology, the container with the batteries and the control technology was integrated into the substructure of the PV system which provides shadow.

Involved partners
Agricultural Knowledge & Training Centre




Capital: Lusaka
Official language: English
Total area: 752.618 kmĀ²
Population: 12.935.000
GDP/Capita/Year: $1.086
Source: Wikipedia 2012