Ariz. Admin. Code § R14-2-2625 - Advanced Inverter Requirements

A. If interconnected after the effective date of this Article, a Generating Facility utilizing inverter-based technology shall be interconnected via advanced inverter(s) that are capable of, at minimum, the advanced grid support features specified in subsection (B).

B. At a minimum, an advanced inverter shall be capable of the following grid support features:

1. Volt/VAR Mode - Provide voltage/VAR control through dynamic reactive power injection through autonomous responses to local voltage measurement;

2. Volt/Watt Mode - Provide voltage/watt control though dynamic active power injection through autonomous responses to local voltage measurement;

3. Fixed Power Factor - Provide reactive power by a fixed power factor;

4. Anti-Islanding - Support anti-Islanding to trip off under extended anomalous conditions;

5. Low/High Voltage Ride-through (L/HVRT) - Provide ride-through of low/high voltage excursions beyond normal limits;

6. Low/High Frequency ride-through (L/HFRT) - Provide ride-through of low/high frequency excursions beyond normal limits;

7. Soft-Start Reconnection - Reconnect after grid power is restored; and

8. Frequency/Watt Mode - Provide Frequency/Watt control to counteract frequency excursions beyond normal limits by decreasing or increasing real power.

C. The grid support features listed in subsections (B)(1), (2), (3), (7), and (8) shall only be activated upon mutual consent between the Customer and the Utility.

D. The grid support features listed in subsections (B)(4), (5), and (6) shall always be operational.

E. Advanced inverters shall meet the shutdown protective functions (under/over voltage, under/over frequency, and anti-Islanding) specified in IEEE 1547-2018, which is incorporated by reference in R14-2-2614(E)(1).

Notes

Ariz. Admin. Code § R14-2-2625

Adopted by final rulemaking at 26 A.A.R. 473, effective 2/25/2020.