Zenna – Belize lll

Swiss Partners

Zenna AG, Murg
Lukas Küffer

Local Partner

Project Type:

Pilot project





Project Status:


Project Start:


End of Project:




Swiss Contribution

ZENNA is a consulting company specialising in photovoltaics and has over 10 years experience. In collaboration with  ZHAW Zurich University of Applied SciencesAMPS GmbH BetteriesWelcome Solar Energy Solutions Belize Ltd. SESB, the  cdw Foundation – energy in ideas  and the  Ministry of Public Utilities, Energy and Logistics (MPUEL), Belize, ZENNA will implement the project plan.


Remote households outside of solar-powered electric mini-grids without financing options for a solar home system usually rely on diesel generators for electricity production. Within the scope of this project, a mobile battery pack with 2nd-life battery cells from e-mobility will be developed. In La Gracia, a battery pack charging and delivery service will be implemented as an extension of the existing solar-electric mini-grid (see REPIC 2015.9). E-pickups will be used for the delivery service to the remote households around La Gracia. As an addition to the existing mini-grid and a basis for the delivery service, a carport with a photovoltaic roof will be built in the centre of La Gracia.


The first battery packs and their peripherals (inverters, controllers) were successfully tested in Belize. A show system was set up at the local partner SESB (Solar Energy Solutions Belize Ltd.), which was presented to representatives of the local energy supplier (Belize Electricity Limited) and the Ministry of Energy (Energy Unit), among others. The correct billing of electricity consumption is ensured for all customers by new electricity meters. The first test phase has shown that a moderate expansion of the electrical grid for less distant customers and a charging service for batteries for more distant self-collectors is a good economic solution.