Getting power from solar panels under transmission lines
Getting power from solar panels under transmission lines
(OP)
Hi folks,
What about the idea of getting power from solar panels under HV transmission lines?
Advantages and disadvantages.
What about the idea of getting power from solar panels under HV transmission lines?
Advantages and disadvantages.
Best Regards,
Herivelto S. Bronzeado
Brasília, Brazil
http://www.linkedin.com/profile/view?id=46319837&a...






RE: Getting power from solar panels under transmission lines
Best Regards,
Herivelto S. Bronzeado
Brasília, Brazil
http://www.linkedin.com/profile/view?id=46319837&a...
RE: Getting power from solar panels under transmission lines
Access roads are usually already in place.
Keeping area clean from weeds and trees needed for both. So why not take advantage of work already done?
Solar panels hold back growth of vegetation.
Connection to power grid may or may not be simplified, depending on HV line voltage and solar panel size.
A lot going for it, I think.
Disadvantages: ?
Gunnar Englund
www.gke.org
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Half full - Half empty? I don't mind. It's what in it that counts.
RE: Getting power from solar panels under transmission lines
Alan
RE: Getting power from solar panels under transmission lines
Installation most of all,
RE: Getting power from solar panels under transmission lines
As the panels themselves become cheaper and cheaper while towers do not, you can afford a fixed position and refrain from solar tracking. Makes the installation less costly and reduces that part of the maintenance.
New surface treatment technology also reduces the need for frequent cleaning.
Gunnar Englund
www.gke.org
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Half full - Half empty? I don't mind. It's what in it that counts.
RE: Getting power from solar panels under transmission lines
Another might be some sort of adverse coupling with the overhead lines causing losses and step potential problems.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Getting power from solar panels under transmission lines
Induced voltages during OHTL faults? - this can be mitigated by shielded cables, I think installation can be managed especially under EHV lines.
To avoid dangerous / propagated EPR cells should be a bit far from poles/tower foundations.
Another advantage here is that no need for additional lightning protection for the cells.
One disadvantage is cells damage during OH conductor failures (risk can be assessed).
OH shadow trajectory can be analyzed based on geographical location and cells placement may be coordinated accordingly to mitigate the impact.
RE: Getting power from solar panels under transmission lines
I only know all this because every 5 years or so, someone new to town circulates a petition to have the city make them into full blown parks, plant trees etc. and when it gets to the City Council, PG&E (the utility) attends, this land use issue comes up and kills all proposals. I don't think anyone has ever brought up solar arrays however. There is a large substation nearby, which could make easy access to the grid. Hmmmm...
"You measure the size of the accomplishment by the obstacles you had to overcome to reach your goals" -- Booker T. Washington
RE: Getting power from solar panels under transmission lines
between 2010 and 2011 we installed about 300 MW of PV systems in areas inside or nearby EHV/HV transforming substations; above most of these areas there are 400 or 230 kV overhead lines. The only disadvantage is a somewhat lower efficency due to shadows, but on the other hand there are also some advantages, like presence of TLC channels for performing monitoring and proximity with HV substation for grid connection.
Si duri puer ingeni videtur,
preconem facias vel architectum.
RE: Getting power from solar panels under transmission lines
Some more specific information:
The water supply Project I work for stands out for running more than 470 km of canals. Moving water over such significant distance requires a significant amount of energy, particularly because the water must be carried over large elevation changes before distribution. This is done by running 9 pumping stations fed by an electrical system of 270 km of 230 kV transmission lines. At the first stage will be installed about 200 MW of motor load.
The Project is running in the Northeast of Brazil, a very sunny and dry region. The idea is to analyze the feasibility of installing solar photovoltaic panels under and along the transmission lines focusing on the benefits of using renewable energy sources to help the energy need to pump water.
We own the transmission lines. The a right of ways of 50 m large.
I would like to thank all those could give us any insights on this matter.
Best Regards,
Herivelto S. Bronzeado
Brasília, Brazil
http://www.linkedin.com/profile/view?id=46319837&a...