SkyBox and Radian Attestation

Inverter Manufacturer Attestation Form
Phase 3 Functions 1 and 8
1. Inverter Manufacturer Attestation
OutBack Power Technologies, an EnerSys Company (“Manufacturer”) attests to the
following:
• It has performed sufficient structured testing by qualified personnel based on the
most updated publicly available testing criteria on each of the inverter models listed
in this report.
• The inverter models listed in this report have demonstrated performance of each
function as specified in this document.
• It will maintain testing records and make them available upon request.
Capability Requirement for Smart Inverter Phase 3 Function 1
Each Smart Inverter listed below shall have the capability to communicate its performance
information on the following functional elements:
A. Production or consumption of active power (Watts). The inverter shall be
capable of accurately communicating the active power (Watts) produced or
consumed as measured at the terminals of the inverter.
B. Consumption or production of reactive power (Vars). The inverter shall be
capable of accurately communicating the reactive power (Vars) produced or
consumed as measured at the terminals of the inverter.
C. Phase voltage measured at the AC terminals of the Smart Inverter (volts). The
inverter shall be capable of accurately communicating the measured AC voltage
(volts) as measured at the terminals of the inverter.
D. Frequency measured at the AC terminals of the Smart Inverter (Hz). The
inverter shall be capable of accurately communicating the measured system
frequency (HZ) as measured at the terminals of the inverter.
E. For inverters designed for applications with energy-storage systems, the inverter
shall be capable of communicating the operational state of charge as a percent of
energy storage capacity.
F. The inverter shall be capable of communicating when the inverter is capable of
providing electric services, as follows:
In-Service: An operational state which indicates that the Smart Inverter
is connected to the electric system and operating as determined locally by
the Generating Facility operator or by a scheduling control system.
Not In-Service: An operating state that indicates that the Smart Inverter
is not capable of connecting to the electric system and not capable of