Renewable energy solutions
Author: Arvid Nesheim
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Small wind energy devices An environmentally friendly method for conversion of wind energy into electrical energy by use of small energy devices. Parts of the device can be made from wooden materials, read more
Welcome to my website which presents renewable energy solutions that can enable supply of environmentally friendly energy at low costs. Enabling this would be beneficial in regard to avoiding climate changes and achieving prosperity that is affordable for everyone, read more.
I hope you will find the following articles about the new technologies interesting. Please feel free to apply the solutions.
Please feel free to use the solutions.
Small wind energy devices can enable lowest energy prices. If wind energy devices with effective height 2,5 m and width 2 m were deployed in a number equal to the number of motor vehicles in the world, the electrical energy production from the devices in fresh breeze (8,5 to 10,5 m/s) would constitute from 56 % to 100 % of the world electrical energy production, read more.
Ocean energy plants
A practical method for conversion of ocean wave energy into electrical energy, read more
Ocean wave energy can contribute significantly to the world energy production. A number of about 64 million small ocean wave energy plants would in 2 m wave height produce electrical energy in a quantity of about 67% of the annual world energy production.
Each plant would consist of 4 energy devices where each device includes a buoy with diameter 3 m and 2 water chambers. The small plants may be assembled in a circular pattern to obtain large ocean energy plants. The time in service of the energy plants would be minimum 30 years.
The required number of ocean energy plants is not very large in world scale e.g. in comparison about 60 million passenger cars are produced every year.
The figure to the left illustrates a wave energy plant consisting of 20 buoys arranged on the circumference of a circle with diameter 130 m. The centre distance between the buoys would be approximately 20 m. If the average wave energy is 40 kW/m (for example at the Norwegian Sea) the average energy produced by the plant would be 1,62 MW.
260 plants would annually produce about 3,6 TWh. The required sea area for the plants would be about 0,13 x 47 km.
The figure to the left illustrates a wave energy plant consisting of 8 assemblies of buoys where each assembly consists of 20 buoys arranged on the circumference of a circle with diameter 130 m. The centre distance between the buoys would be approximately 20 m. If the average wave energy is 40 kW/m the average energy produced by the plant would be 12,96 MW.
32 plants would annually produce about 3,6 TWh. The required sea area for the plants would be about 0,73 x 25 km.
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