California PMRS requirement and cost?????

Pgovetom Solar Expert Posts: 30
The California Solar Initiative has a requirement for metering called PMRS but if its cost over 5 years exceeds 1% of the system cost, its waived. Does anyone know how PMRS is done, who actually does it, and most importantly, for a residential system costing about $65K total at CEC 9.8KW solar PV system, what would it cost roughly over 5 years. Its hard to believe anyone could provide a service like that for $650 over 5 years but I haven't been able to find any cost data. Anyone have any knowledge about this?




  • mike95490
    mike95490 Solar Expert Posts: 9,583 ✭✭✭✭✭
    Re: California PMRS requirement and cost?????

    Do you know what "PMRS" stands for ?
    Powerfab top of pole PV mount | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

    gen: ,

  • GreenerPower
    GreenerPower Solar Expert Posts: 264 ✭✭✭✭✭✭
    Re: California PMRS requirement and cost?????

    Performance Monitoring and Reporting Service-
  • BB.
    BB. Super Moderators, Administrators Posts: 33,493 admin
    Re: California PMRS requirement and cost?????

    Isn't PMRS only required for systems >10 kWatts in size (and commercial installations)?

    I would not do it and would apply for the smaller equipment program which just gives out the rebate in "one chunk" at the beginning instead of spread out over 5+ years or so based on metered collection.

    At best, you are probably only getting a 2-5% return on you money (as electric power reduction)--and a 1% added cost for monitoring is significant (plus you need a phone line/Internet connection for those 5 years too for automatic reporting--which you may already have for home use).

    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset