1. Power Systems 2002 Conference Impact of Distributed Generation Clemson, SC March 13-15, 2002 PANEL DISCUSSION P6 Experience with Testing DG Chairman: Ben Kroposki, NREL Rick Langley, EPRI PEAC Corporation Tim Zgonena, Underwriters Laboratories Robert Hack, University of California (NFCRC)

2. Overview of NREL DER Testing Activities Distributed Power Integration Engineering and Testing Lead National Renewable Energy Laboratory 1617 Cole Blvd. Golden, CO 80401 Phone: 303-275-2979 Email: ben_kroposki@nrel.gov Ben Kroposki

3. Simulation and Modeling Characterization R&D Field Testing and Validation Certification University of Wisconsin Orion - University of Massachusetts (Lowell) Industry Partners - DTE, GE, NiSource NREL - DER Test Facility EPRI - PEAC University of Wisconsin EPRI-PEAC Underwriters Laboratories Nevada Test Site Distributed Utility Integration Test - DUA Industry Partners - GE, NYSERDA, GRI, NRECA, NiSource, Real Energy, DTE DOE Distributed Power Program Interconnection Testing Activities (In-House and Subcontract)

4. Distributed Energy Resources Systems Testing Grid Simulator Load Simulators Diesel Generators Wind Turbines PV Array AC Bus Utility Grid Battery Banks DC Bus Inverters Fuel Cells Electrolyzer Microturbines Thermal Converters Building Thermal Loads

5. NREL’S DER Test Facility IEEE P1547 Interconnection Standard – Can conduct all tests for DG interconnection 200kW Utility Grid Simulator – Simulate utility grid and full control of voltage and frequency to test DG response to grid disturbances Data Acquisition – Includes Labview/ National Instruments DAS for long-term monitoring of power system, Yokogawa PZ4000 Power analyzer for short-term high resolution measurements, Power Measurements 7600 for remote site data acquisition KeyTek Surge Tester – Simulate high-voltage lightning strikes on DG equipment DG Test Pads DG Test Equipment Grid Simulator DAS Surge Tester

6. DER Distributed Power Program Testing at Nevada Test Site NREL Distribute Power Program is conduct exploratory field tests to validate interconnection and commissioning tests included in the IEEE P1547 interconnection standard at the Nevada Test Site. NREL is also developing a long-term testing plan for NTS. Testing on 2 different types of DG: 1. Static Inverter (5kW Inverter with PV array ) 2. Synchronous generator (100kW diesel gensets w/ paralleling package). Feeder 25-1202 at Area 25 of Nevada Test Site DG Test Location Substation 25-10