N-7Wind Integration Study
3 passages
List of Tables and Figures Table 1: Minimum Inertia for Frequency Control, First Iteration15 Table 2: Minimum Inertia and FFR Required for Frequency Control 17 Table 3: Most Severe RoCoF, 2023 Grid18 Table 4: First Iteration for 2030 RoCoF...
AI summary The document provides a list of tables and figures related to frequency control, inertia requirements, and grid stability, including tables on minimum inertia, FFR support, and RoCoF, as well as figures illustrating voltage waveforms, simulation results, and frequency response. The introduction section is referenced but not detailed in this chunk.
4.4.3 SCR as a Screening Index SCR can be considered as a screening level index for a potential POI for IBR. However, engineering judgement should be exercised when making screening level conclusions based on such indices. This can be illu...
AI summary This section discusses the use of Short Circuit Ratio (SCR) as a screening index for determining the suitability of a Point of Interconnection (POI) for Inverter-Based Resources (IBR). It highlights limitations of SCR calculations when multiple IBR projects are connected to the same POI, emphasizing that hosting capacity should be based on combined IBR sizes and that EMT studies are necessary for high IBR penetration scenarios.
• Motor Load Customers Motor starts as noted in Section [5.4.7](#page-42-0) and other reliability concerns for the industrial customer should be assessed for any significant change in point of interconnection conditions. As the transition...
AI summary The text discusses the need to assess motor starts and reliability concerns for industrial customers as the transition to 2030 progresses, emphasizing the importance of site-specific studies to identify and mitigate potential issues.
N-8Electrification Strategy Report
8 passages
Recommendation 4. Support cost-effective grid modernization and panel upgrades, as well as allelectric ready new construction, to ensure the utility doesn't become a bottleneck to electrification. Grid modernization and panel upgrade inves...
AI summary The recommendation emphasizes the importance of grid modernization and electric-ready construction to support electrification, while acknowledging the potential for near-term rate pressure. It suggests that Nova Scotia Power should streamline processes for electrical upgrades and permits to avoid bottlenecks, with examples from other utilities such as Eversource and Southern California Edison.
Recommendation 6. Advance public-facing distribution planning process to support electrification. Proactive distribution system planning: Utility planners need to manage an increasingly complex distribution system proactively and effective...
AI summary E3 recommends that Nova Scotia Power advance a public-facing distribution planning process to proactively manage load growth and infrastructure upgrades needed for electrification. This includes spatially explicit load forecasting, evaluating load-shifting opportunities, and engaging stakeholders to ensure a reliable and resilient grid.
Recommendation 4. Support cost-effective grid modernization and panel upgrades, as well as allelectric ready new construction, to ensure the utility doesn't become a bottleneck to electrification. Grid modernization and panel upgrade inves...
AI summary The recommendation emphasizes the need for grid modernization and electric-ready construction to support electrification. However, these investments may increase near-term rate pressure. The utility is encouraged to streamline processes for upgrades and permits to avoid bottlenecks and support efficient distribution system improvements.
Recommendation 6. Advance public-facing distribution planning process to support electrification Proactive distribution system planning: Utility planners need to manage an increasingly complex distribution system proactively and effectivel...
AI summary This recommendation emphasizes the need for Nova Scotia Power to advance a public-facing distribution planning process to support electrification. It highlights the importance of proactive planning, load forecasting, and stakeholder engagement to manage increasing complexity in the distribution system and ensure reliable, resilient grid operations.
Charger type Rated charger power (kW) Charger efficiency (%) Charger : EV ratio # of Chargers Residential L1 1.6 90% 1 : 1 25,607 Residential L2 11.4 90% 1 : 1 33,444 Workplace L2 6.6 90% 1 : 21.8 3,465 Public L2 6.6 90% 1 : 29.5 2,561 Pub...
AI summary The table presents data on different types of electric vehicle (EV) chargers, including their rated power, efficiency, charger-to-EV ratio, and the number of chargers. The data includes residential, workplace, and public chargers, with varying levels of power and efficiency.
6.1.2 Medium-duty vehicle (MDV) and heavy-duty vehicle (HDV) charging loads inputs and assumptions Transit buses were selected given their predictable driving schedules and consistent depot charging; longhaul trucking driving patterns ofte...
AI summary The document discusses assumptions for medium-duty and heavy-duty vehicle charging loads, focusing on transit buses and parcel trucks. Transit buses are assumed to drive 62,888 km/yr, while parcel trucks are assumed to drive 22,779 km/yr.
Vehicle parameters for transit buses and parcel trucks are shown in [Table 6-3](#page-98-0) below: Table 6-3. 2030 MD/HD vehicle parameters EV type Average Range (km) Transit bus 670 Parcel truck 442 The efficiencies of transit buses and p...
AI summary The document presents vehicle parameters for transit buses and parcel trucks in 2030, noting their average ranges and the adjustment of their efficiencies based on historic Nova Scotia temperature data, with transit buses having a different temperature relationship compared to LDVs and parcel trucks.
All parcel trucks and transit buses are assumed to have their own charger. Charger parameters for transit buses and parcel trucks are given i[n Table 6-4](#page-98-1) below: Table 6-4. 2030 MD/HD charger parameters Charger type Rated charg...
AI summary The text outlines charger parameters for transit buses and parcel trucks, assuming each has its own charger. Table 6-4 provides details on rated power, efficiency, charger-to-EV ratio, and the number of chargers for both types of vehicles.