Topic:"Environmental Compliance" in M08059

2. MODELING PLAN AND INPUT ASSUMPTIONS ........................................................... 8 2.1. Modeling Methodology ..................................................................................................... 8 Plexos.....

AI summary The document outlines a modeling plan and input assumptions, detailing methodology using Plexos, post-processing steps, scenarios, sensitivities, and assumptions related to load, fuel prices, energy sources, transmission constraints, and emission limits.

rs of the analysis. Emission Constraints The applicable emission constraints used directly in the Plexos modeling are as listed in the table below. Table 4. Emission Constraints as Modeled in Plexos CO2 CO2 mmT SO2 kT NOx kT Hg Kg mmT SO2...

AI summary The document outlines emission constraints used in the Plexos modeling, showing a gradual reduction in CO2, SO2, NOx, and Hg emissions from 2018 to 2042. It references two specific documents: the Maritime Link Interim Cost Assessment M07718 and NSPI's response to discovery request DR-15.

Scenario 25 Scenario 26 Figure 18. Mercury Emissions by Scenario Hg Emissions by Scenario 80 70 60 50 40 30 20 10 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Hg Constraint Reference Case Scenario 2 Scenario 4 Scenario 5 Scen...

AI summary The text presents a graphical representation of mercury emissions across various scenarios, including a reference case and multiple scenarios labeled 1 through 26. The figure is part of a report by Synapse Energy Economics, Inc. on thermal generation utilization and optimization for NSPI (Nova Scotia Power Inc.) under matter number M08059.

0%/year – partial build or for NB Transm. Costs -month $5.30/kW-mo. $US Transmission different cost allocation Imports via ML: NE Market FCM=$6.61/kW NE FCM 2020 clearing price Synapse: Recent FCM 0%/year Negotiated pricing - NFL Capacity...

AI summary The text outlines transmission and capacity costs, fuel cost mechanisms (FCM), solar PV costs, coal/oil prices, and carbon emissions regulations. It references Synapse and Lazard reports, NSPI 2017 data, and discusses cost allocation differences and declining carbon caps under regulatory frameworks.

s of resources. Our aim is to provide a modeling analysis that shows the costs of retention versus the costs of alternative resource plans that use a different mix of resources to meet capacity needs. The analysis proceeds in an electric s...

AI summary The analysis compares the costs of retaining coal resources versus alternative resource plans, considering declining renewable energy costs, increasing coal costs, infrastructure changes like the Maritime Link, and carbon emission reductions. It evaluates economic viability of coal amid aging plants and uncertain gas prices.

ile, control coal dust, and provide ash handling. Older coal plants will also need capital investment to keep them running reliably and running a peaking duty cycle these plants were not designed for. NS Power has expressed reluctance to s...

AI summary The text discusses the need to retire older coal plants and analyze the economic viability of alternatives like natural gas, transmission interconnections, hydro imports, and energy storage, contingent on carbon pricing. NS Power's reluctance to study coal retirements until carbon targets are clearer is noted, but the authors advocate for a carbon-price-based analysis to inform policy decisions and track technological cost changes annually.

e resource plan” 2 would result from running Plexos with different combinations of the input assumption sets illustrated below. Illustrative Matrix: Example of key parameters and range of assumptions Alternative assumptions: Set 1 Set 2 Se...

AI summary The text presents an illustrative matrix of alternative assumptions for an integrated resource plan (IRP), evaluating scenarios with varying parameters such as load forecasts, gas prices, transmission capacity, wind resource costs, and carbon constraints. Three assumption sets (Set 1–3) explore different levels of energy efficiency, capital requirements, and renewable energy integration.

ST Plexos module to assess customer cost and rate impact? Assumptions NS Power requests that clarity be provided for the following items relating to the assumptions to be used for the modelling:  How will Synapse distinguish critical inpu...

AI summary NS Power seeks clarity on assumptions for ST Plexos modelling, including critical vs. non-critical inputs, demand-side scenarios, storage technologies, capital sustaining assumptions, natural gas pricing, transmission configurations, carbon pricing rationale, and wind capacity value adjustments.

ts illustrated below. Due to time limitations, we will not define scenarios for all possible permutations of input assumptions. Illustrative Matrix: Example of key parameters and range of assumptions Alternative assumptions: Set 1 Set 2 Se...

AI summary The text presents a matrix of alternative assumptions for energy planning parameters, including load, capital requirements, gas prices, transmission, wind resource costs, demand response, storage, carbon costs, and balancing areas. Scenarios explore varying levels of energy efficiency, capital needs, and resource availability.

va Scotia’s current system, but also ramping and ancillary service requirements under different scenarios of increased penetration of wind resources and utilization of, for example, storage resources. Supply-side assessment for future year...

AI summary The analysis emphasizes the need to assess winter gas availability from New England, influenced by their greenhouse gas reduction targets, and the implications for Maritimes energy costs. It also highlights the importance of considering storage and wind resource scenarios in supply-side planning.

$122.91 Note: All avoided energy costs included the avoided emissions costs associated with the emission caps in Nova Scotia. No additional avoided T or D costs are included. 3

AI summary The note states that avoided energy costs include emissions costs from Nova Scotia's emission caps, excluding additional T or D costs. This highlights the inclusion of emissions-related expenses in the calculation of avoided costs.