Distributed solar power plant and a method of its connection to the existing power grid
A method and apparatus is provided for using a renewable source of energy such as solar, wind or geothermal energy. The method includes generating electric energy from a renewable form of energy at a plurality of locations at which reside an electric power line associated with an electric power grid. The electric energy generated at each location is transferred to the electric power line to thereby supply electric energy to the electric power grid.
1. A method for using a plurality of renewable sources of energy, comprising:
generating electric energy having a first frequency from a renewable form of energy at a plurality of different locations at which reside a pre-existing AC electric power line in an AC electric power grid carrying electric energy with a second frequency; and
transferring the electric energy generated at each location to the AC electric power line at each respective location to thereby supply electric energy to the AC electric power grid, wherein the electric energy is transferred via a respective plurality of energy transfer elements for transferring the electric energy generated at each location to the AC electric power line, wherein each energy transfer element resides at one of the different locations, and wherein said energy transfer elements convert and transfer the electric energy with the first frequency to the pre-existing AC electric power grid carrying the electric energy with the second frequency via electrical current multiplexing filters.
2. The method of claim 1 wherein the renewable form of energy is solar energy.
3. The method of claim 1 wherein the renewable form of energy is wind energy.
4. The method of claim 1 wherein the renewable form of energy is thermoelectric energy.
5. The method of claim 1 wherein the electric energy is generated by a plurality of energy generators each mounted to a different supporting structure that supports the electric power line at one of the plurality of locations.
6. The method of claim 5 wherein the supporting structure is a utility pole.
7. The method of claim 2 further comprising concentrating the solar energy onto a solar cell arrangement that generates the electric energy.
8. In an AC electric power grid that includes a pre-existing AC electric power line, a distributed energy generating plant comprising:
a plurality of energy generators for converting a renewable form of energy into electric energy; and
a plurality of energy transfer elements for transferring the electric energy generated by the respective energy generators to the AC electric power line at different locations along the AC electric power line, wherein each energy generator and its associated energy transfer element reside at one of the different locations, and wherein said energy transfer elements convert and transfer energy with a first frequency from said energy generators to an existing electrical grid carrying energy with a second frequency via electrical current multiplexing filters.
9. The distributed energy generating plant of claim 8 wherein the energy transfer element resides at a location remote from said energy generators.
10. The distributed energy generating plant of claim 8 wherein the energy transfer elements comprise a DC-AC converter.
11. The distributed energy generating plant of claim 8 further comprising a plurality of supports that support the electric power line, wherein each energy generator and its associated energy transfer element is secured to one of the supports.
12. The distributed energy generating plant of claim 11 wherein the plurality of supports are utility poles.
13. The distributed energy generating plant of claim 8 wherein at least one of the energy generators includes a solar cell arrangement.
14. The distributed energy generating plant of claim 13 further comprising a solar cell arrangement utilizing a concentrator for concentrating the solar energy onto the solar cell.
15. The distributed energy generating plant of claim 8 wherein at least one of the energy generators includes a wind turbine.
16. The distributed energy generating plant of claim 8 wherein at least one of the energy generators includes a thermoelectric generator.
17. The distributed energy generating plant of claim 8 further comprising a plurality of supports each securing one of the energy generators and one of the energy transfer elements thereto, wherein each support is further securable to a different utility pole that supports the electric power line at one of the plurality of locations.
18. The distributed energy generating plant of claim 8 wherein each of said energy transfer elements converts electrical energies from at least two said energy generators.
19. The distributed energy generating plant of claim 8 wherein said energy generators are first connected to a separate electrical sub-grid.
20. The distributed energy generating plant of claim 8 wherein said energy generators are directly connected to an existing AC electrical grid.
21. The distributed energy generating plant of claim 19 wherein said energy transfer elements connect said separate electrical sub-grid to an existing AC electrical grid.
22. The method of claim 1 wherein the plurality of locations are locations at which a utility operator of the AC power grid has a right of way to use the location.
23. The distributed energy generating plant of claim 8 wherein at least one of said energy transfer elements transfers DC energy from said energy generators to an existing electrical grid carrying AC energy via a low-pass electrical filter and at least another one of said energy transfer elements transfers DC energy, converts it to AC energy and transfers the AC energy to said electrical grid via a high-pass electrical filter.
24. The method of claim 1 wherein substantially all of said generated renewable energy is transferred to the AC power grid.