Utility reliability requirements are set by PUCs and Federal Regulators. Unless the neighborhood microgrid is always islanded from the grid, there are quite a few problems to solve:
1) Who will respond to outages and make repairs. This includes issuing clearances to crews making repairs.
2) Who will issue protection settings (reclosers/relay settingsfuse coordination, etc) and perform fault analysis?
3) Unless you have generators then they'll need to provide power when your PV systems don't meet demand
4) Someone needs to investigate power quality problems
5) Generation dispatch to meet demand and maintain a system frequency of 60Hz.
6) Someone must handle interconnection requests. Who is going to stop your neighbor with a 50Hz generator that can handle 50% of your microgrid load from connecting to the system, causing a big frequency drop and damaging appliances? Your microgrid doesn't have enough inertia to absorb something something like that.
7) Are the micro grid operators subject to the same reliability requirements as utilities?
8) Are you going to install your own poles and wires? That includes permitting, responding to joint use requests per regulatory requirements, etc.
1) Who will respond to outages and make repairs. This includes issuing clearances to crews making repairs. 2) Who will issue protection settings (reclosers/relay settingsfuse coordination, etc) and perform fault analysis? 3) Unless you have generators then they'll need to provide power when your PV systems don't meet demand 4) Someone needs to investigate power quality problems 5) Generation dispatch to meet demand and maintain a system frequency of 60Hz. 6) Someone must handle interconnection requests. Who is going to stop your neighbor with a 50Hz generator that can handle 50% of your microgrid load from connecting to the system, causing a big frequency drop and damaging appliances? Your microgrid doesn't have enough inertia to absorb something something like that. 7) Are the micro grid operators subject to the same reliability requirements as utilities? 8) Are you going to install your own poles and wires? That includes permitting, responding to joint use requests per regulatory requirements, etc.