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Everyone needs electricity and heat – but how to best organise transmission, distribution and storage? Go ahead and learn about the most intelligent designs and solutions!
Energy efficiency is key, both for the current building stock and for everything to be built from now on. Find out more about how the building stock can be made fit for future energy savings!
In tomorrow’s energy world, industries, commerce and agriculture use only a fraction of the energy they use today – with no negative effects on output.
Electromobility and new, alternative fuels are about to fundamentally change the transport sector. Find out more about the characteristics and prospects of these technologies!
In order to achieve an integrated energy system, power, heat and mobility need to be combined in a way that is both intelligent and sustainable. Take a look at relevant approaches in this field!
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The Mozambican tourism sector is characterised by remote lodges that offer a quiet oasis for tourists from all over the world, far from Mozambique's national electricity grid. To meet their electricity needs, the operators of these lodges often rely on diesel generators.
At first glance, the capital investment for a solar system does not seem comparable to the cost of running diesel generators. However, when life-cycle costs are considered, a photovoltaic system quickly becomes a cost-effective alternative. The costs of procuring diesel through vast areas that are often difficult to access as well as the maintenance costs of generators add up considerably over the lifetime of the system. This results in great market potential for PV systems for self-supply, which can additionally be coupled with a battery system or a modern diesel generator.
In addition to cost savings, the use of climate-friendly energy solutions and the reduction of CO2 consumption enables an expanded marketing approach for the lodges to develop new customer segments. After all, noisy diesel generators that pollute the environment are often perceived as a nuisance by tourists.
The Travessia Beach Lodge decided to take this step in 2014. With its location about 60 kilometres away from the next largest town and thus from the electricity grid, it is dependent on self-sufficiency. To ensure a reliable energy supply at the off-grid location, only the most energy-efficient appliances were used in addition to an optimised electrical infrastructure. This further minimised the consumption of energy and resources.
On a rainy day, the battery supports the power supply.
The Project Development Programme (PDP) team of the German Energy Solutions Initiative connected the Travessia Beach Lodge team with the right German contractor. Asantys Systems GmbH realised the stand-alone PV system plus battery as power storage for night and rainy days with German components such as SMA inverters, Hoppecke batteries and SolarWorld modules. A system for monitoring and documentation of energy consumption was also installed. The installation of the system was carried out by local specialists who were trained with the support of PDP.
In addition to the good planning and provision by Asantys Systems, the installation and involvement of the local company also contributed to the success. Harald Olk, an expert in rural electrification, was responsible for supporting the commissioning and project management.
The example shows that renewable energies and energy efficiency can go hand in hand with luxury eco-lodge concepts. New buildings in particular offer the opportunity to integrate sustainable energy concepts from the outset, which not only lead to energy savings and a reliable energy supply, but also contribute to a green image and a good reputation.
Support of the German Energy Solutions Initiative
The project was realised as a result of PDP’s activities in Mozambique and in cooperation with the Southern African-German Chamber of Commerce and Industry and the Inhambane Provincial Association of Hotels & Tourism. PDP proactively informed local partner companies and German system integrators and was able to contribute to the sustainable implementation through technical trainings for local installers on site.
Participants during the technical training for the installation of the PV system at Travessia Beach Lodge.
Among other things, a sector analysis on the topic of "Qualitative Photovoltaic Power Supply for the Mozambican Tourism Sector" was prepared, which was based on energy audits of two other hotel facilities as case studies in addition to the Travessia Lodge.
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