Your main service panel, also known as a breaker box or just a panel box, is a fairly important part of your solar system. Essentially, all the electricity your solar system is producing will be going through this panel.
The amperage of your main breaker switch inside this panel box is critical. A typical panel box is somewhere between 100 and 225 amps. With most being either 100 or 200.
The amps of this will dictate how large of a solar system your jurisdiction will allow. In most jurisdictions, a 100 amp panel box will typically allow you to have a max solar system size of around 4.25kW. A 200 amp panel box can support a system size up to around 12 kW, which would cover most residential installations.
If your recommended system is larger than your panel box can handle, you will likely want to upgrade your panel box. A good cost for an upgrade ranges from $1,500 to $2,500. You will get a 30% tax credit on this cost as well, making the effective cost much less.
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