Anode
Member
- Location
- Washington, USA
I've never encountered this before, but this is the response
I received from a third party engineer reviewing our plans to
interconnect a 150kW system.
First, I can easily provide an hourly table with max ac out for
each hour and each month of the year, to then prove 112kW
would be peak output at any given time.
My question is how should we go about providing a safegaurd
as described in their response? I've never heard of anything
like this. Obviously I don't think they are talking about inverters
back feeding in the event of a grid outage, they want the
system to essentially not be net-metered.
Can you seasoned veterans lay some experience on me?
I received from a third party engineer reviewing our plans to
interconnect a 150kW system.
"It is the intent of the design that there will be no
bi-directional breakers installed on this project and that
the PV system WILL NOT BACKFEED to the utility at any
time. The PV system installer shall be responsible to
provide evidence to the Utility that safeguards have
been incorporated into the PV system design to either
shut down the PV system or prevent access power
beyond that which is consumed directly by the facility
from being generated."
bi-directional breakers installed on this project and that
the PV system WILL NOT BACKFEED to the utility at any
time. The PV system installer shall be responsible to
provide evidence to the Utility that safeguards have
been incorporated into the PV system design to either
shut down the PV system or prevent access power
beyond that which is consumed directly by the facility
from being generated."
First, I can easily provide an hourly table with max ac out for
each hour and each month of the year, to then prove 112kW
would be peak output at any given time.
My question is how should we go about providing a safegaurd
as described in their response? I've never heard of anything
like this. Obviously I don't think they are talking about inverters
back feeding in the event of a grid outage, they want the
system to essentially not be net-metered.
Can you seasoned veterans lay some experience on me?