4 tenants, 1 60kW solar array - possible to run 4 AC outputs from single inverter?

jaggedben

Senior Member
Location
Northern California
Occupation
Solar and Energy Storage Installer
Yeah I know two things about this:
1) this is regulated at the state or even local level, so someone with intricate knowledge of the local legal details would be a big help
2) I don't know enough about it in my own state, let alone yours!

I did find the article interesting. One thought : If the landlord is going to save money by going solar, I recommend passing at least some of those savings along to the tenants. Otherwise a tenant might be motivated to complain to the regulators about unfair profiteering.
 

ggunn

PE (Electrical), NABCEP certified
Location
Austin, TX, USA
Occupation
Consulting Electrical Engineer - Photovoltaic Systems
I did find the article interesting. One thought : If the landlord is going to save money by going solar, I recommend passing at least some of those savings along to the tenants. Otherwise a tenant might be motivated to complain to the regulators about unfair profiteering.
Why would you say that? If a building owner wants to put a PV system on the roof of his building to feed a meter that is separate from the tenants' meters, why would the tenants object unless he raises their rent to pay for it or unless the roof is part of what they are leasing?
 

jaggedben

Senior Member
Location
Northern California
Occupation
Solar and Energy Storage Installer
Why would you say that? If a building owner wants to put a PV system on the roof of his building to feed a meter that is separate from the tenants' meters, why would the tenants object unless he raises their rent to pay for it or unless the roof is part of what they are leasing?

We're not talking about a meter that's entirely seperate from the tenants' meters. What's discussed in the article is a master utility meter upstream in series with non-utility tenant submeters that the landlord uses to bill tenants. I.e tenants pay landlord based on sub meters, landlord pays utility.

As the article mentions, the regulators don't want submetered tenants to pay more than they would typically pay to a utility. It's basically supposed to be a pass through. And I would wager that no one has yet tested the law on whether solar savings are required to be passed through as well. So I advise passing some through so that tenants aren't incentivized to make the OP's client the test case.
 

ggunn

PE (Electrical), NABCEP certified
Location
Austin, TX, USA
Occupation
Consulting Electrical Engineer - Photovoltaic Systems
We're not talking about a meter that's entirely seperate from the tenants' meters. What's discussed in the article is a master utility meter upstream in series with non-utility tenant submeters that the landlord uses to bill tenants. I.e tenants pay landlord based on sub meters, landlord pays utility.

As the article mentions, the regulators don't want submetered tenants to pay more than they would typically pay to a utility. It's basically supposed to be a pass through. And I would wager that no one has yet tested the law on whether solar savings are required to be passed through as well. So I advise passing some through so that tenants aren't incentivized to make the OP's client the test case.
Well, OK, but the tenants do not own the building, and if PV on the roof does not detract from what they receive with their lease or make their energy cost more than it otherwise would, why should they care if the building owner uses PV on the roof to generate more income for himself? It's his investment.
 

jaggedben

Senior Member
Location
Northern California
Occupation
Solar and Energy Storage Installer
For the same reason they would care if the owner buys electricity from the utility and resells it to them. They will want the best deal they can get.
 

LarryFine

Master Electrician Electric Contractor Richmond VA
Location
Henrico County, VA
Occupation
Electrical Contractor
I don't see how the tenant on the load side of the meter has any claim on what the landlord does on the line side of it.
 
Charging anyone for electricity is generally heavily regulated.
Many people think that, but I don't really think that is true. According to a resource on the NCSL.ORG website, there are only Twenty-two states, three counties and Washington, D.C., that have statutes, regulations, or rulings on utility submetering. None of them outright prohibit the practice. I think the most restrictive regulation is just that the electricity can't be marked up in price. Also it should be noted that some states actually REQUIRE submetering for conservation purposes.
 

jaggedben

Senior Member
Location
Northern California
Occupation
Solar and Energy Storage Installer
... I think the most restrictive regulation is just that the electricity can't be marked up in price. ...
Right, so if you are effectively paying less for electricity because you installed solar to supply or offset it, are you then allowed to charge regular price to your submetered tenants? Or is that a markup? I'm not saying I know the answer, I'm saying I'd consult a lawyer about. And I suggested cutting the tenants in on the deal by some amount to lower the incentive for someone bringing it to court. The only thing I'm willing to bet a sandwich on is that if there's a law or regulation restricting markups, it was written before anyone thought of the solar situation, so the lawyers will be reading between the lines.
 
Right, so if you are effectively paying less for electricity because you installed solar to supply or offset it, are you then allowed to charge regular price to your submetered tenants? Or is that a markup? I'm not saying I know the answer, I'm saying I'd consult a lawyer about. And I suggested cutting the tenants in on the deal by some amount to lower the incentive for someone bringing it to court. The only thing I'm willing to bet a sandwich on is that if there's a law or regulation restricting markups, it was written before anyone thought of the solar situation, so the lawyers will be reading between the lines.
Good question, who knows. Or, say a building is off grid. What can the owner charge the tenants for electricity? 🤔
 

Brettstep

Member
Location
Ohio
Occupation
Solar Developer
Good question, who knows. Or, say a building is off grid. What can the owner charge the tenants for electricity? 🤔
Capitalism would say, whatever the tenants are willing to pay is what the owner can charge...otherwise, they move somewhere else.
 

ggunn

PE (Electrical), NABCEP certified
Location
Austin, TX, USA
Occupation
Consulting Electrical Engineer - Photovoltaic Systems
Right, so if you are effectively paying less for electricity because you installed solar to supply or offset it, are you then allowed to charge regular price to your submetered tenants? Or is that a markup? I'm not saying I know the answer, I'm saying I'd consult a lawyer about. And I suggested cutting the tenants in on the deal by some amount to lower the incentive for someone bringing it to court. The only thing I'm willing to bet a sandwich on is that if there's a law or regulation restricting markups, it was written before anyone thought of the solar situation, so the lawyers will be reading between the lines.
I guess it is for the court to decide if it comes to that, but if the tenant is getting their energy for the same price before and after the owner installs a PV system I don't see where they have a beef unless they contributed to the cost of installing the system. If someone puts a system on their house that exports energy, some of what they produce goes to his next door neighbor's loads. So what?
 

jaggedben

Senior Member
Location
Northern California
Occupation
Solar and Energy Storage Installer
I guess it is for the court to decide if it comes to that, but if the tenant is getting their energy for the same price before and after the owner installs a PV system I don't see where they have a beef unless they contributed to the cost of installing the system. If someone puts a system on their house that exports energy, some of what they produce goes to his next door neighbor's loads. So what?

I mean, you're being reasonable. That doesn't necessarily matter.
 
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