Installing Solar Electric Since 1983
CASE STUDIES
Interesting projects that we'd like to share with you.
Mrs. D. Mrs D installed a grid-tie system but 10 yers later she learns that PG&E lost her paperwork.
Point of connection. Examples of how a main panel, sub-panel or feeder can be overloaded by excess PV feed.
Rogues Gallery. Improbable, unsafe and unreliable installations.
Pacific Valley School. This remote public school had some very serious electrical and occupational hazards. We have been told that the problems have been corrected.
Ground fault. A ground fault nearly burns down a warehouse. Analysis on why it happened and how to prevent this type of failure. Also, a study indicating that PV Ground fault systems may be erroneously indicating a PV fault when a non-PV, non-ground fault is occuring.
Outback Generator Feed wiring. An option for dual use of the X240 breaker. Breaker 'C' is the X-240 25 amp breaker.
Point of Connection. Example of how 690.64 can be applied.
Shading Study. Animation of shadow progression from 8:00 AM through 4:00PM, Winter Solstice, San Luis Obispo County. Depicts two installations, each two rows of modules on flat surface. (wmv File)
Battery Wiring Options: Explores two options for battery wiring: Traditional cable connectins versus buss bar wiring.
Data monitoring system: Inexpensive kit used to collect up to 4 channels of data with high resolution.