opportunities identified. Based on work to date, four opportunities have been identified that may reduce OBPS-volumes, as shown in Table A-2.23 Only two of the opportunities are cost-effective and are currently being implemented. An overview of the four opportunities follows:
Table A-2
| Facility-Related Emission Reduction Project Summary | |||||
|---|---|---|---|---|---|
| Opportunity | EstimatedCapitalCost ($millions) | EstimatedEmissionsReductions –2021(tCO2e) | Estimated EmissionsReductions –10-yr Cumulative(tCO2e) | Cost perTonne of GHGEmissions ($/tCO2e)24 | |
| 1 | Online Monitoring | 0.05 | 202 | 1,300 | -32 |
| 2 | Air Filters | 025 | 540 | 2,700 | -47 |
| 3 | Plant J Twinning (Electric Drive) | 70.00 | N/A 26 | N/A 27 | 117 |
| 4 | Re-wheeling Turbines | 17.19 | N/A 28 | N/A 29 | 191 |
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Online Monitoring for Storage and Transmission Operations – An online monitoring project is being implemented to connect the main transmission stations together in order to optimize engine use, resulting in less maintenance and reduced fuel consumption. Although this project was initially
23 While these opportunities are expected to reduce OBPS-volumes, there may not be an overall reduction in OBPS volumes depending on compressor usage in 2021. Compressor usage is impacted by many factors including storage volumes, and weather-related volume demands.
24 A Discounted Cash Flow analysis was conducted to calculate the $/tCO2e cost (represented by a positive $/tCO2e figure) or savings (represented by a negative $/tCO2e figure) of CEE plan opportunities. Cash outflows include incremental capital costs of each opportunity. Cash inflows include resulting natural gas savings, avoided carbon charges, any other incremental O&M costs or savings, income tax impacts and any operating costs or savings resulting from the opportunity. The net present value (“NPV”) of cash inflows and outflows is divided by total expected emissions avoided to determine the $/tCO2e.
25 Initial O&M costs for the air filter replacement program are estimated to be $10,000 in 2021 but once the program is fully implemented, it is estimated that there will be an O&M savings of approximately $150,000/year.
26 This opportunity is currently not being implemented as it is not cost-effective, and therefore no emission reductions will occur in 2021.
27 The expected total 10-year cumulative emissions reduction related to this opportunity, if it were to be implemented, is 14,800 tCO2e.
28 This opportunity is currently not being implemented as it is not cost-effective, and therefore no emission reductions will occur in 2021.
29 This opportunity is currently not being implemented as it is not cost-effective. The expected total 10year emissions reduction related to this opportunity, if it were to be implemented, is 3,100 tCO2e.