Common use of Metering Requirements Clause in Contracts

Metering Requirements. 5.2.1. All output from the Project must be delivered through a single CAISO revenue meter located on the high-voltage side of the Project’s final step-up transformer nearest to the Interconnection Point, and that meter must be dedicated exclusively to the Project; provided that if the CAISO does not permit a revenue meter for the Facility, the Buyer shall specify a revenue quality meter for the Facility. All Product purchased under this Agreement must be measured by the Project’s CAISO revenue meter(s), or the revenue quality meter specified by Buyer, to be eligible for payment under this Agreement. Seller shall bear all costs relating to all metering equipment installed to accommodate the Project. 5.2.2. Buyer may, at its sole cost, furnish and install one Check Meter at the interconnection associated with the Facility at a location provided by Seller that is compliant with Buyer’s electric service requirements. The Check Meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering System. In the event that Buyer elects to install a Check Meter, Buyer may compare the Check Meter data to the CAISO meter data. If the deviation between the CAISO meter data and the Check Meter data for any comparison is greater than 0.3%, Buyer may provide Notice to Seller of such deviation and the Parties shall mutually arrange for a meter check or recertification of the Check Meter or CAISO meter, as applicable. Each Party shall bear its own costs for any meter check or recertification. Testing procedures and standards for the Check Meter will be the same as for a comparable Buyer- owned meter. Seller shall have the right to have representatives present during all such tests. The Check Meter, if Buyer elects to install a Check Meter, is intended to be used for back-up purposes in the event of a failure or other malfunction of the CAISO meter, and Check Meter data shall only be used to validate the CAISO meter data and, in the event of a failure or other malfunction of the CAISO meter, in place of the CAISO meter until such time that the CAISO meter is recertified. 0.0.0. Xx the case of Excess Sale arrangements, Buyer may, at its sole cost, furnish and install a net generation output meter at a location provided by Seller that is compliant with Buyer’s electric service requirements. Such meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering System.

Metering Requirements. 5.2.16.2.1. All output from the Project must be delivered through a single CAISO revenue meter located on the high-voltage side of the Project’s final step-up transformer nearest to the Interconnection Point, and that meter must be dedicated exclusively to the Project; provided that if the CAISO does not permit a revenue meter for the Facility, the Buyer shall specify a revenue quality meter for the Facility. All Product purchased under this Agreement must be measured by the Project’s CAISO revenue meter(s), or the revenue quality meter specified by Buyer, to be eligible for payment under this Agreement. Seller shall bear all costs relating to all metering equipment installed to accommodate the Project. 5.2.26.2.2. Buyer may, at its sole cost, furnish and install one Check Meter at the interconnection associated with the Facility at a location provided by Seller that is compliant with Buyer’s electric service requirements. The Check Meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering Systemtelemetering system. In the event that Buyer elects to install a Check Meter, Buyer may compare the Check Meter data to the CAISO meter data. If the deviation between the CAISO meter data and the Check Meter data for any comparison is greater than 0.3%, Buyer may provide Notice to Seller of such deviation and the Parties shall mutually arrange for a meter check or recertification of the Check Meter or CAISO meter, as applicable. Each Party shall bear its own costs for any meter check or recertification. Testing procedures and standards for the Check Meter will be the same as for a comparable Buyer- Buyer-owned meter. Seller shall have the right to have representatives present during all such tests. The Check Meter, if Buyer elects to install a Check Meter, is intended to be used for back-up purposes in the event of a failure or other malfunction of the CAISO meter, and Check Meter data shall only be used to validate the CAISO meter data and, in the event of a failure or other malfunction of the CAISO meter, in place of the CAISO meter until such time that the CAISO meter is recertified. 0.0.06.2.3. Xx In the case of Excess Sale excess sales arrangements, Buyer may, at its sole cost, furnish and install a net generation output meter at a location provided by Seller that is compliant with Buyer’s electric service requirements. Such meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering Systemtelemetering system.

Metering Requirements. 5.2.1. All output from the Project must be delivered through a single CAISO revenue meter located on the high-voltage side of the Project’s final step-up transformer nearest to the Interconnection Point, and that meter must be dedicated exclusively to the Project; provided that if the CAISO does not permit a revenue meter for the Facility, the Buyer shall specify a revenue quality meter for the Facility. All Product purchased under this Agreement must be measured by the Project’s CAISO revenue meter(s), or the revenue quality meter specified by Buyer, to be eligible for payment under this Agreement. Seller shall bear all costs relating to all metering equipment installed to accommodate the Project. 5.2.2. Buyer may, at its sole cost, furnish and install one Check Meter at the interconnection associated with the Facility at a location provided by Seller that is compliant with Buyer’s electric service requirements. The Check Meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering System. In the event that Buyer elects to install a Check Meter, Buyer may compare the Check Meter data to the CAISO meter data. If the deviation between the CAISO meter data and the Check Meter data for any comparison is greater than 0.3%, Buyer may provide Notice to Seller of such deviation and the Parties shall mutually arrange for a meter check or recertification of the Check Meter or CAISO meter, as applicable. Each Party shall bear its own costs for any meter check or recertification. Testing procedures and standards for the Check Meter will be the same as for a comparable Buyer- Buyer-owned meter. Seller shall have the right to have representatives present during all such tests. The Check Meter, if Buyer elects to install a Check Meter, is intended to be used for back-up purposes in the event of a failure or other malfunction of the CAISO meter, and Check Meter data shall only be used to validate the CAISO meter data and, in the event of a failure or other malfunction of the CAISO meter, in place of the CAISO meter until such time that the CAISO meter is recertified. 0.0.05.2.3. Xx In the case of Excess Sale arrangements, Buyer may, at its sole cost, furnish and install a net generation output meter at a location provided by Seller that is compliant with Buyer’s electric service requirements. Such meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering System.

Metering Requirements. 5.2.16.2.1. All output Energy from the Project must be delivered through a single CAISO revenue quality meter located on the high-voltage side of the Project’s final step-up transformer nearest to the Interconnection Point, and that meter must be dedicated exclusively to the Project; provided that if . Such meter must be installed on the CAISO does not permit a revenue meter for high side of the Facility’s step up transformer, the Buyer shall specify a revenue quality meter for the Facilityunless otherwise approved by Buyer. All Product Delivered Energy purchased under this Agreement must be measured by the Project’s CAISO revenue meter(s), or the revenue quality meter specified by Buyer, meter(s) to be eligible for payment under this Agreement. Seller shall bear all costs relating to all metering equipment installed to accommodate the Project. 5.2.26.2.2. Buyer may, at its sole cost, furnish and install one Check Meter at the interconnection associated with the Facility at a location provided by Seller that is compliant with Buyer’s electric service requirements. The Check Meter must may be interconnected with Buyer’s communication network, or the communication network of Buyer’s agent, to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering System. In the event that Buyer elects to install a Check Meter, Buyer may compare the Check Meter data to the CAISO Facility’s revenue meter data. If the deviation between the CAISO Facility’s revenue meter data and the Check Meter data for any comparison is greater than 0.3%, Buyer may provide Notice to Seller of such deviation and the Parties shall mutually arrange for a meter check or recertification of the Check Meter or CAISO the Facility’s revenue meter, as applicable. Each Party shall bear its own costs for any meter check or recertification. Testing procedures and standards for the Check Meter will shall be the same as for a comparable Buyer- Buyer-owned meter. Seller The Parties shall have the right to have representatives present during all such tests. The Check Meter, if Buyer elects to install a Check Meter, is intended to be used for back-up purposes in the event of a failure or other malfunction of the CAISO Facility’s revenue meter, and Check Meter data shall only be used to validate the CAISO Facility’s revenue meter data and, in the event of a failure or other malfunction of the CAISO Facility’s revenue meter, in place of the CAISO Facility’s revenue meter until such time that the CAISO Facility’s revenue meter is recertified. 0.0.0. Xx the case of Excess Sale arrangements, Buyer may, at its sole cost, furnish and install a net generation output meter at a location provided by Seller that is compliant with Buyer’s electric service requirements. Such meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering System.

Metering Requirements. 5.2.1. All output The transfer of Output from the Project must be delivered through a single CAISO revenue meter located on the high-voltage side of the Project’s final step-up transformer nearest Seller to the Interconnection Point, and that meter must be dedicated exclusively to the Project; provided that if the CAISO does not permit a revenue meter for the Facility, the Buyer shall specify a revenue quality meter for the Facility. All Product purchased under this Agreement must be measured by revenue quality metering equipment at the Project’s CAISO revenue meter(s)Point of Interconnection or another nearby location reasonably acceptable to Buyer. Such metering equipment, including any equipment required for communicating meter data (e.g., a dedicated data line) to Buyer or the revenue quality meter specified CAISO, shall be selected, provided, installed, owned, maintained and operated, at Seller’s sole cost and expense, by Buyer, to be eligible for payment under this AgreementSeller or its designee in accordance with applicable CAISO rules. Seller shall bear exercise reasonable care consistent with Prudent Utility Practice in the maintenance and operation of any such metering equipment, and shall test and verify the accuracy of each meter at least annually. Seller shall inform Buyer sufficiently in advance of the time and date of these tests to permit Buyer to be present, and shall permit Buyer to be present, at such tests and to receive the results of such tests. Subject to Buyer paying the cost of any update or upgrade to such metering equipment pursuant to a new requirement of the CAISO, the Participating TO or any other Governmental Authority, adopted after the Contract Delivery Start Date, each of Seller’s meters shall be accurate to the metering specifications then in effect for CAISO meter accuracy. Seller shall further install and maintain all costs relating equipment and data circuits necessary to transmit all monitored real time supervisory control and data acquisition (“SCADA”) system data and real time data from the CAISO meter to the CAISO and Scheduling Coordinator, while adhering to both CAISO and Scheduling Coordinator’s communications protocols. Seller shall provide Buyer with a copy of each certificate of compliance issued by CAISO, if any. Buyer and Scheduling Coordinator shall be provided access to all metering equipment installed monitored SCADA points to accommodate the Project. 5.2.2be used at their discretion in real time monitoring. Buyer mayBuyer, at its sole costcost and expense, furnish may install and install one Check Meter at maintain check meters and all associated measuring equipment necessary to permit an accurate determination of the interconnection associated quantities of Output delivered under this Agreement, provided the referenced equipment does not interfere with Seller’s metering equipment. Seller shall permit Buyer or Scheduling Coordinator or its agent access to Seller’s Plant for the purpose of installing and maintaining such check meters. Seller shall submit to the CAISO, or allow the CAISO to retrieve, any meter data required by the CAISO related to the Plant output in accordance with the Facility at a location provided by Seller that is compliant with BuyerCAISO’s electric service requirementssettlement and billing protocol and meter data tariffs. The Check Meter must be interconnected with Buyer’s communication network Buyer shall have reasonable access to permit (a) periodicrelevant meters and associated facilities, remote collection of revenue quality as well as real time access to all meter data, as is necessary for Buyer or Scheduling Coordinator or its agent to perform its duties as scheduling coordinator and (b) back-up real time transmission of operating-quality meter data through comply with the Telemetering System. In the event that Buyer elects to install a Check Meter, Buyer may compare the Check Meter data to the CAISO meter data. If the deviation between the CAISO meter data and the Check Meter data for any comparison is greater than 0.3%, Buyer may provide Notice to Seller of such deviation and the Parties shall mutually arrange for a meter check or recertification of the Check Meter or CAISO meter, as applicable. Each Party shall bear its own costs for any meter check or recertification. Testing procedures and standards for the Check Meter will be the same as for a comparable Buyer- owned meter. Seller shall have the right to have representatives present during all such tests. The Check Meter, if Buyer elects to install a Check Meter, is intended to be used for back-up purposes in the event of a failure or other malfunction requirements of the CAISO meter, and Check Meter data shall only be used to validate the CAISO meter data and, in the event of a failure or other malfunction of the CAISO meter, in place of the CAISO meter until such time that the CAISO meter is recertifiedTariff. 0.0.0. Xx the case of Excess Sale arrangements, Buyer may, at its sole cost, furnish and install a net generation output meter at a location provided by Seller that is compliant with Buyer’s electric service requirements. Such meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering System.

Metering Requirements. 5.2.16.2.1. All output from the Project must be delivered through a single CAISO revenue meter located on the high-voltage side of the Project’s final step-up transformer nearest to the Interconnection Point, and that meter must be dedicated exclusively to the Project; provided that if the CAISO does not permit a revenue meter for the Facility, the Buyer shall specify a revenue quality meter for the Facility. All Product purchased under this Agreement must be measured by the Project’s CAISO revenue meter(s), or the revenue quality meter specified by Buyer, to be eligible for payment under this Agreement. Seller shall bear all costs relating to all metering equipment installed to accommodate the Project. [Seller shall install and maintain all metering arrangements, including the CAISO Exemption, as applicable, that utilize the Transformer or Line Loss Correction Factors (as such terms are defined by the CAISO Tariff) required to meter the Project independently.] [Bracketed language for Facilities utilizing Shared Facilities] 5.2.26.2.2. Buyer may, at its sole cost, furnish and install one Check Meter at the interconnection associated with the Facility at a location provided by Seller that is compliant with Buyer’s electric service requirements. The Check Meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering Systemtelemetering system. In the event that Buyer elects to install a Check Meter, Buyer may compare the Check Meter data to the CAISO meter data. If the deviation between the CAISO meter data and the Check Meter data for any comparison is greater than 0.3%, Buyer may provide Notice to Seller of such deviation and the Parties shall mutually arrange for a meter check or recertification of the Check Meter or CAISO meter, as applicable. Each Party shall bear its own costs for any meter check or recertification. Testing procedures and standards for the Check Meter will be the same as for a comparable Buyer- Buyer-owned meter. meter.‌‌ Seller shall have the right to have representatives present during all such tests. The Check Meter, if Buyer elects to install a Check Meter, is intended to be used for back-up purposes in the event of a failure or other malfunction of the CAISO meter, and Check Meter data shall only be used to validate the CAISO meter data and, in the event of a failure or other malfunction of the CAISO meter, in place of the CAISO meter until such time that the CAISO meter is recertified. 0.0.06.2.3. Xx In the case of Excess Sale Sales arrangements, Buyer may, at its sole cost, furnish and install a net generation output meter at a location provided by Seller that is compliant with Buyer’s electric service requirements. Such meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering Systemtelemetering system.

Metering Requirements. 5.2.1. All output from the Project must be delivered through a single CAISO revenue meter located on the high-voltage side of the Project’s final step-up transformer nearest to the Interconnection Point, and that meter must be dedicated exclusively to the Project; provided that if the CAISO does not permit a revenue meter for the Facility, the Buyer shall specify a revenue quality meter for the Facility. All Product purchased under this Agreement must be measured by the Project’s CAISO revenue meter(s), or the revenue quality meter specified by Buyer, to be eligible for payment under this Agreement. Seller shall bear all costs relating to all metering equipment installed to accommodate the Project. 5.2.2. Buyer may, at its sole cost, furnish and install one Check Meter at the interconnection associated with the Facility at a location provided by Seller that is compliant with Buyer’s electric service requirements. The Check Meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering Systemtelemetering system. In the event that Buyer elects to install a Check Meter, Buyer may compare the Check Meter data to the CAISO meter data. If the deviation between the CAISO meter data and the Check Meter data for any comparison is greater than 0.3%, Buyer may provide Notice to Seller of such deviation and the Parties shall mutually arrange for a meter check or recertification of the Check Meter or CAISO meter, as applicable. Each Party shall bear its own costs for any meter check or recertification. Testing procedures and standards for the Check Meter will be the same as for a comparable Buyer- Buyer-owned meter. Seller shall have the right to have representatives present during all such tests. The Check Meter, if Buyer elects to install a Check Meter, is intended to be used for back-up purposes in the event of a failure or other malfunction of the CAISO meter, and Check Meter data shall only be used to validate the CAISO meter data and, in the event of a failure or other malfunction of the CAISO meter, in place of the CAISO meter until such time that the CAISO meter is recertified. 0.0.0. Xx In the case of Excess Sale excess sales arrangements, Buyer may, at its sole cost, furnish and install a net generation output meter at a location provided by Seller that is compliant with Buyer’s electric service requirements. Such meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering Systemtelemetering system. Meter Data. Seller hereby agrees to provide all meter data to Buyer in a form acceptable to Buyer, and consents to Buyer obtaining from the CAISO the CAISO meter data applicable to the Project and all inspection, testing and calibration data and reports. Seller shall grant Buyer the right to retrieve the meter readings from the CAISO Operational Meter Analysis and Reporting website and directly from the meter(s) at the Site.

Metering Requirements. 5.2.1. 6.2.1 All output from the Project must be delivered through a single CAISO revenue meter located on the high-voltage side of the Project’s final step-up transformer nearest to the Interconnection Point, and that meter must be dedicated exclusively to the Project; provided that if the CAISO does not permit a revenue meter for the Facility, the Buyer shall specify a revenue quality meter for the Facility. All Product purchased under this Agreement must be measured by the Project’s CAISO revenue meter(s), or the revenue quality meter specified by Buyer, to be eligible for payment under this Agreement. Seller shall bear all costs relating to all metering equipment installed to accommodate the Project.; 5.2.2. 6.2.2 Buyer may, at its sole cost, furnish and install one Check Meter at the interconnection associated with the Facility at a location provided by Seller that is compliant with Buyer’s electric service requirements. The Check Meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering Systemtelemetering system. In the event that Buyer elects to install a Check Meter, Buyer may compare the Check Meter data to the CAISO meter data. If the deviation between the CAISO meter data and the Check Meter data for any comparison is greater than 0.3%, Buyer may provide Notice to Seller of such deviation and the Parties shall mutually arrange for a meter check or recertification of the Check Meter or CAISO meter, as applicable. Each Party shall bear its own costs for any meter check or recertification. Testing procedures and standards for the Check Meter will be the same as for a comparable Buyer- Buyer-owned meter. Seller shall have the right to have representatives present during all such tests. The Check Meter, if Buyer elects to install a Check Meter, is intended to be used for back-up purposes in the event of a failure or other malfunction of the CAISO meter, and Check Meter data shall only be used to validate the CAISO meter data and, in the event of a failure or other malfunction of the CAISO meter, in place of the CAISO meter until such time that the CAISO meter is recertified. 0.0.0. Xx 6.2.3 In the case of Excess Sale excess sales arrangements, Buyer may, at its sole cost, furnish and install a net generation output meter at a location provided by Seller that is compliant with Buyer’s electric service requirements. Such meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering Systemtelemetering system.

Metering Requirements. 5.2.1. All output The transfer of Energy from the Project must be delivered through a single CAISO revenue meter located on the high-voltage side of the Project’s final step-up transformer nearest Seller to the Interconnection Point, and that meter must be dedicated exclusively to the Project; provided that if the CAISO does not permit a revenue meter for the Facility, the Buyer shall specify a revenue quality meter for the Facility. All Product purchased under this Agreement must be measured by revenue quality metering equipment at the Project’s CAISO revenue meter(s)Point of Interconnection. Such metering equipment, including any equipment required for communicating meter data (e.g., a dedicated data line) to Buyer or the revenue quality meter specified CAISO, shall be selected, provided, installed, owned, maintained and operated, at Seller’s sole cost and expense, by Buyer, to be eligible for payment under this AgreementSeller or its designee in accordance with applicable CAISO rules. Seller shall bear exercise reasonable care in the maintenance and operation of any such metering equipment, and shall test and verify the accuracy of each meter at least annually. Seller shall inform Buyer in advance of the time and date of these tests, and shall permit Buyer to be present at such tests and to receive the results of such tests. Subject to Buyer paying the cost of any update or upgrade to such metering equipment pursuant to a new requirement of the CAISO, the LDC or any other Governmental Authority, adopted after the Commercial Operation Date, each of Seller’s meters shall be accurate to the metering specifications then in effect for CAISO meter accuracy. Seller shall further install and maintain all costs relating equipment and data circuits necessary to transmit all monitored real time supervisory control and data acquisition (“SCADA”) system data and real time data from the CAISO meter to the CAISO and NCPA, while adhering to both CAISO and NCPAs’ communications protocols. Seller shall provide Buyer with a copy of each certificate of compliance issued by CAISO, if any. Buyer and NCPA shall be provided access to all metering equipment installed monitored SCADA points to accommodate the Project. 5.2.2be used at their discretion in real time monitoring. Buyer mayBuyer, at its sole costcost and expense, furnish may install and install one Check Meter at maintain check meters and all associated measuring equipment necessary to permit an accurate determination of the interconnection associated quantities of Energy delivered under this Agreement, provided the referenced equipment does not interfere with Seller’s metering equipment. Seller shall permit Buyer or NCPA or its agent access to Seller’s Plant for the purpose of installing and maintaining such check meters. Seller shall submit to the CAISO, or allow the CAISO to retrieve, any meter data required by the CAISO related to the Plant output in accordance with the Facility at a location provided by Seller that is compliant with BuyerCAISO’s electric service requirementssettlement and billing protocol and meter data tariffs. The Check Meter must be interconnected with Buyer’s communication network Buyer shall have reasonable access to permit (a) periodicrelevant meters and associated facilities, remote collection of revenue quality as well as real time access to all meter data, as is necessary for Buyer or NCPA or its agent to perform its duties as scheduling coordinator and (b) back-up real time transmission of operating-quality meter data through comply with the Telemetering System. In the event that Buyer elects to install a Check Meter, Buyer may compare the Check Meter data to the CAISO meter data. If the deviation between the CAISO meter data and the Check Meter data for any comparison is greater than 0.3%, Buyer may provide Notice to Seller of such deviation and the Parties shall mutually arrange for a meter check or recertification of the Check Meter or CAISO meter, as applicable. Each Party shall bear its own costs for any meter check or recertification. Testing procedures and standards for the Check Meter will be the same as for a comparable Buyer- owned meter. Seller shall have the right to have representatives present during all such tests. The Check Meter, if Buyer elects to install a Check Meter, is intended to be used for back-up purposes in the event of a failure or other malfunction requirements of the CAISO meter, and Check Meter data shall only be used to validate the CAISO meter data and, in the event of a failure or other malfunction of the CAISO meter, in place of the CAISO meter until such time that the CAISO meter is recertifiedTariff. 0.0.0. Xx the case of Excess Sale arrangements, Buyer may, at its sole cost, furnish and install a net generation output meter at a location provided by Seller that is compliant with Buyer’s electric service requirements. Such meter must be interconnected with Buyer’s communication network to permit (a) periodic, remote collection of revenue quality meter data, and (b) back-up real time transmission of operating-quality meter data through the Telemetering System.