How Does a Solar Farm Connect to the Grid?
The topic of interconnection is complex but important for a landowner to understand at a high level. Where a substation is located impacts a solar
Solar sites must be relatively close to substations and utility lines to do this. A range of roughly 5 miles or less should be maintained between a utility substation and a solar farm. Additionally, it is recommended that a three-phase distribution line is around 0.2 miles from the site.
Connecting at a substation is often favorable for a solar farm since the facility is pre-established, and its design simplifies the interconnection process.
The substation is the point of interconnection between the solar farm and the grid. It ensures that the electricity generated by the solar farm is synchronized with the grid's voltage, frequency, and phase, allowing it to be fed into the wider electrical network.
Larger commercial projects, such as a community solar farm, usually need to be connected to a three-phase distribution line. Utility-scale projects either connect directly to a substation or a transmission line of 69 kV or higher.
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