Or. Admin. R. 860-082-0045 - Tier 1 Interconnection Review
(1) A public utility must use the Tier 1
review procedures for an application to interconnect a small generator facility
that meets the following requirements:
(a)
The small generator facility must use lab-tested, inverter-based
interconnection equipment;
(b) The
small generator facility must have a nameplate capacity of 25 kilowatts or
less; and
(c) The small generator
facility must not be interconnected to a transmission line.
(2) Tier 1 Approval Criteria. A
public utility must approve an application for interconnection under the Tier 1
interconnection review procedures if the small generator facility meets the
approval criteria in subsections (a) through (e). A public utility may not
impose different or additional approval criteria.
(a) A Tier 1 small generator facility
interconnection must use existing public utility facilities.
(b) For interconnection of a small generator
facility to a radial distribution circuit, the aggregated nameplate capacity on
the circuit must not exceed 15 percent of the line section annual peak load as
most recently measured at the substation or calculated for the line
section.
(c) For interconnection of
a small generator facility to the load side of spot network protectors, the
aggregated nameplate capacity on the load side of the spot network protectors
must not exceed five percent of a spot network's maximum load or 50 kilowatts,
whichever is less.
(d) For
interconnection of a small generator facility to a single-phase shared
secondary line, the aggregated nameplate capacity on the line must not exceed
20 kilowatts.
(e) For
interconnection of a single-phase small generator facility to the center tap
neutral of a 240-volt service line, the addition of the small generator
facility must not create a current imbalance between the two sides of the
240-volt service line of more than 20 percent of the nameplate rating of the
service transformer.
(3)
In addition to the timelines and requirements in OAR 860-082-0025, the public
utility must provide written notice to the applicant stating whether the small
generator facility meets the Tier 1 approval criteria no later than 15 business
days from the date a Tier 1 interconnection application is deemed
complete.
(4) The interconnection
process is not complete until:
(a) The public
utility approves the application;
(b) The witness test, if conducted by the
public utility, is successful; and
(c) The applicant and public utility execute
a certificate of completion. The certificate of completion must follow the
standard form certificate developed by the public utility and approved by the
Commission.
(5) If a
small generator facility is not approved under the Tier 1 interconnection
review procedure, then the applicant may submit a new application under the
Tier 2, Tier 3, or Tier 4 review procedures. At the applicant's request, the
public utility must provide a written explanation of the reasons for denial
within five business days of the request.
Notes
Stat. Auth.: ORS 183, 756 & 757
Stats. Implemented: ORS 756.040 & 756.060
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