A. Permitted renewable energy sources. Any renewable energy source must be powered by photovoltaic or wind generators. A customer may have more than one renewable energy source, provided that the combined generating capacity of all such sources: (i) does not exceed 25 kW or, if the combined generating capacity of all such sources; or (ii) the Director of Water and Electric determines that the installation of the generating system will not create a safety risk or adversely impact the Village's distribution system.
B. Technical requirements. No customer shall be allowed to take power from a renewable energy source that does not meet or exceed all of the standards set forth in the following paragraphs of this subsection. For systems greater than 25 kW, the customer shall be responsible for having the power generating facility tested every three years for compliance with these standards and for promptly submitting the test results to the Director of Water and Electric. Failure to provide the test results in a timely manner may be cause for disconnection without further notice:
1. IEEE Std. 929-2000 Recommended Practice for Utility Interface of Photovoltaic (PV) Systems.
2. IEEE Std 1547-2018 IEEE Standard for Interconnecting Distributed Resources with Electric Power Systems.
3. IEEE Std 1547.1-2020 IEEE Standard Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems.
4. IEEE Std. 1453, Recommended Practice For the Analysis of Fluctuating Installations on Power Systems.
5. IEEE Std. 519-2014, Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems.
6. UL 1741, Inverters, Converters, Controllers, and Interconnection Systems for use with Distributed Energy Resources.
7. National Electric Safety Code (NESC).
8. ANSI/NFPA 70, National Electrical Code.
9. OSHA (29 CFR 1910.269).
C. Additional requirements.
1. A renewable generating system(s) must be properly sized so as not to exceed the customer's expected annual usage based on the customer's current energy needs. As part of the interconnection application, the Director of Water and Electric shall analyze a customer's energy usage by using 36 months of historical energy usage (if available) in order to calculate the customer's expected annual usage. If a customer provides documentation specifying why the usage has increased over that time, such as home renovation/addition or installation of electric heating or an electric vehicle charging station on the premises, then the previous 12-month period shall be used to determine the average for the expected annual usage. If the applicable months of data are not available for an individual customer, the average usage amounts by other similar customers of the Village, as determined by Director of Water and Electric, shall be used to set the expected annual usage.
2. In the event that an approved renewable electric generating system becomes unsafe or begins to cause adverse impacts to the Village's distribution system, the Village may require the customer to disconnect the renewable electric generating system until the unsafe condition or adverse impacts are remedied.
3. Any person supplying power and energy to the Village shall indemnify the Village, its officers, employees, agents and assigns from all liability and losses of any kind resulting from the customer's operation of the renewable energy source.
4. Every renewable energy source shall bear a decal or sticker warning of a possible backfeed from the renewable source. The identifying decal or sticker shall be in a form approved by the Director of the Water and Electric Department and shall be installed on the face of the electric meter.
5. All renewable energy sources shall be equipped with an outdoor disconnect switch with provisions for padlocking in the open position for the protection of workers and the public. The disconnect switch shall be clearly marked and placed within five feet of the electric meter.
D. Financial responsibility of customer. The customer shall be responsible for all costs incurred by the Village that are in excess of those that would be charged a customer without a source of Renewable Power and Energy.
(MC-03-2023 § 3, Amended, 03/07/2023: MC-8-2008 § 5, Added, 11/18/2008)