Electrical equipment is omnipresent in today’s society. Therefore, electricity-storing and electricity-providing means become more important every day. In a society which has the means to build and maintain an electrical power grid, electricity can be delivered in every household in a very cost-effective way. However, in many cases there is a need for electricity to power electrical equipment at remote or less- developed areas where no connection to an electrical power grid is provided. At such places, one can use batteries or fossil-fuel generators to provide electrical power.

However, batteries run out of power if they are not recharged and with the depletion of fossil fuels it has become costly to generate electrical energy via the burning of fossil fuel and this latter solution is not environmental-friendly due to e.g. the large C02 production. Therefore, there remains a need in the art for improved systems for generating and/or providing electrical power at remote locations which are ecologically justified.

Up to this day, the three main renewable energy sources remain wind energy, hydro- energy and solar energy. Electricity can be typically produced from wind energy by means of e.g. a wind mill or similar, from hydro-energy by means of e.g. a water mill or similar and from solar energy by means of photovoltaic cells. Since a remote location may not always have flowing water nearby, but will always be subject to sunshine or wind at least part of the time, it seems logical that a mobile ecological system for providing electricity at remote locations will comprise means for generating electrical energy from wind energy and/or from solar energy. Such a system is disclosed in patent application US 2010/0207452. This patent application discloses a mobile electrical energy providing system comprising solar panels which can be folded, rotated and moved up and down automatically (motor-driven, computer-steered), a wind mill which can be rotated and moved up and down automatically, a fossil fuel generator, and batteries.

The batteries are energy-providing means which produce electricity from stored chemical energy. It seems that in US 2010/0207452, the batteries can only be recharged by the electricity produced by the solar panels, and not by the other means. Many of the disclosed systems can work together in an array. The system can be connected bidirectionally to the power grid, i.e. the system can extract electrical energy from the power grid and transfer it to the user, but can also transfer surplus electricity produced from the wind and solar energy to the power grid. However, disadvantageously, it seems that the batteries cannot be recharged by the electricity produced from wind energy, from the fossil fuel or from any other means. Obviously, this can lead to problems when there has been no sunshine at all, and the wind blows intermittently. During a wind-less period, the batteries can become depleted after which electricity can only be generated by the fossil-fuel generator. If the fossil fuel is depleted, the system can only provide electricity during windy periods, but has no way of providing electricity during windless periods. If the batteries could be recharged by electricity produced from wind energy, windless periods could be bridged, i.e. electrical power could be provided for during windless periods, by the energy stored in the batteries during windy periods. Furthermore, when the mobile system as disclosed in US 2010/0207452 has been e.g. indoors and/or unused for a while, it is possible that the batteries are depleted already before the system is put to use. This can happen, e.g. when the system has been in the garage for a while without being connected to the power grid, and when the solar panels have not been deployed for a while, hereby drastically reducing the electrical power storing and/or providing capacities of the batteries. When the system is then moved out of the garage and is transported to a remote area without sunshine or at night, the electricity supply depends totally on wind energy and fossil fuel, i.e. when all fossil fuels are burnt and there is no wind, one does not have battery power because the batteries were depleted already.

The present invention aims to improve on the system of US 2010/0207452 by providing a mobile system which can provide electricity and which comprises batteries that can be recharged using wind energy, solar energy, energy stored in fossil fuel, kinetic energy or a combination thereof.

Thereby, the present system comprises

- one or more batteries;

at least one means of extracting electricity from one of the following energy sources: solar energy, wind energy, energy stored in fossil fuels; a dynamo system which is connected to one or more wheels or axes of the mobile system and which can produce electricity from the kinetic energy of the mobile system when it is being towed by e.g. a car or truck.

Furthermore, the system is designed such that the batteries can be recharged by the electricity produced from any of the energy sources for which the system has extraction means, e.g. if the system has photovoltaic cells, a wind mill and a dynamo system, the batteries can be recharged by the electricity produced from solar energy, wind energy and kinetic energy of the mobile system. It is clear that with such a system, the batteries are at least partially charged when the mobile system arrives at its remote location, and that the batteries can be recharged using wind energy, in contrast with e.g. the prior art system of US 2010/0207452.

The invention thereto aims to provide a simple, robust, cheap and ecological mobile electrical power system. Hereby, electrical energy can be produced from wind energy solar energy, energy stored in fossil fuels and/or kinetic energy. This electrical energy can be stored in the batteries and can be simultaneously and/or subsequently delivered to the user in the form of AC or DC electricity. Therefore, when more electricity is needed than can be provided for from solar energy or wind energy at a certain time, the batteries can provide the extra energy needed. As soon as there is any surplus energy, the batteries can be automatically recharged.

The present invention (WO2012007444) provides a mobile system which can be a motorized vehicle or which can be towed by a motorized vehicle such as a car or truck, for generating and providing electricity; said mobile system comprising a mobile platform; said mobile system also comprising collecting systems, a converting unit and storage means attached to said mobile platform.

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