The only experience I had with a PV array under the high voltage transmission lines was that the utility pulled out a 500' access rule and wouldn't allow the system to be installed.
However, I would agree with the prior responder that the shading will be proportional to distance from the array. I would imagine that the poles / towers would be a bigger issue for shading and that the high voltage transmission wires would be negligible at 60' or more from the array. A close approximation of shade band could probably be made via geometry. Mike Kocsmiersky Principal Phone: 413 883-3144 Spirit Solar www.SpiritSolar.net From: Paul Lyons [mailto:[email protected]] Sent: Wednesday, February 24, 2016 10:51 AM To: [email protected] Subject: [RE-wrenches] Shading from Overhead Transmission Lines Hell RE-Wrenches - Do any of you have experience with locating ground-mounted PV systems under high-voltage transmission lines? We have an electric utility client who would like to use some of its land underneath its HV transmission lines to install PV. Is the shadow cast be the overhead wires significant enough to affect the string voltages in the array? Should we go with micro-inverters? Thank you, Paul Lyons, P.E. Zapotec Energy Inc. 675 Massachusetts Ave Cambridge, MA 02139-3309 Tel: 617-547-5900 ext.201 Email: <mailto:[email protected]> [email protected] Web: <http://www.ZapotecEnergy.com> www.ZapotecEnergy.com
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