Topic:"Asset Retirement Obligation" in M11927

CI 50518 CA IR-5 Attachment 19 Page 154 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 3 # Indicators Condition Choices Data Definitions/Explanations >95% of the AA. 145 F28 Annual Water The annual fluctuation in surface water level wi...

AI summary The text discusses indicators related to annual water fluctuation and depth within a specific area, providing guidance on how to assess these factors, including consulting landowners and measuring depths through various methods.

NON-CONFIDENTIAL 1 Request IR-1: 2 3 Refer to Exhibit N-1, NSPI's application for approval of CI 50518 HYD Ruth Falls Main 4 Dam Refurbishment ATO Non-Confidential (N-1 ATO) and section titled "Why do the 5 project this way?" on page 2 of...

AI summary The document outlines NSPI's response to an information request regarding the refurbishment of the Ruth Falls Main Dam. NSPI considered five options and selected the lowest-cost alternative. Further details are referenced in NSUARB IR-7.

4 Figure 5: Decommissioning Cost Breakdown Item Description Anticipated Cost 1 Infrastructure removal $22.4M 2 Environmental assessment and permitting $3.8M 3 Environmental monitoring post-removal $1.5M 4 Sediment management $13.0M 5 Archa...

AI summary The document provides a detailed breakdown of anticipated costs for decommissioning infrastructure, including environmental assessments, sediment management, and Mi'kmaq engagement, with a total projected cost of $81.6 million.

7 Costs were derived from the 2018 Hydro Asset Study This study provides AACE Class 5 8 decommissioning costs estimates (broad range of accuracy, from -50 to +100 percent) of each of 9 NS Power's hydro systems in 2018 dollars. Additionally...

AI summary The text discusses decommissioning costs for NS Power's hydro systems, referencing the 2018 Hydro Asset Study and the 2022 Tusket Decommissioning Cost Estimate report. It notes an increase in decommissioning costs for the Ruth Falls hydro system, now totaling $84.5 million due to an upcoming Depreciation Study.

Dam Refurbishment Avoided Applicable 2044 - (248,768.0) 4,402,972.4 (585,606.1) 684,429.1 16,630,123.1 3,568,598.3 (1,006,234.8) 2,562,363.5 828,145.1 0.32 5,566,907.8 2045 - (256,812.5) 4,491,031.9 (600,843.3) 679,587.1 16,490,791.8 3,633...

AI summary The document presents a table with financial data related to dam refurbishment, including figures for different years from 2044 to 2053, showing values such as avoided costs, applicable costs, and net present values. The table appears to be a detailed cost estimate for a refurbishment project.

NS Power submitted its Hydro Asset Study to the Board in 2018 detailing decommissioning costs, broken out into four primary categories: physical removal, environmental, sedimentation and archaeology. [38] The Company's Reply Evidence provi...

AI summary NS Power submitted updated decommissioning costs for the Ruth Falls main dam, increasing from $81.6 million to $84.5 million. The SBA raised concerns about delays and cost increases due to the Fisheries Act and requested updated project status and an ATO submission once full approval is obtained.

NS Power submitted its Hydro Asset Study to the Board in 2018 detailing decommissioning costs, broken out into four primary categories: physical removal, environmental, sedimentation and archaeology. [38] The Company's Reply Evidence provi...

AI summary NS Power submitted updated decommissioning cost estimates for the Ruth Falls main dam, increasing from $81.6 million to $84.5 million. The SBA raised concerns about the impact of the Fisheries Act on project costs and requested updated project status and approvals from the DFO.

t increase in archeological costs, the Industrial Group underscored the need for an economic assessment and perhaps even an alternative that is more cost-effective while offering longer-term benefits. [48] The Industrial Group also agreed...

AI summary The Industrial Group highlighted concerns regarding the economic assessment of archaeological costs and the lack of detailed decommissioning information provided by NS Power. They recommended delaying the ATO approval until a more thorough analysis of alternatives is conducted and additional requirements are addressed.

complete the offsetting work. The updated costs filed in NS Power's amended ATO application are reflective of the proponent's unit cost rate to complete the required offsetting as established by DFO. NS Power also addressed Midgard's recom...

AI summary NS Power updated the costs in its amended ATO application, reflecting the unit cost rate for offsetting work as established by DFO. They also addressed Midgard's recommendation regarding construction timelines, noting that alternative access routes eliminated the need for certain in-water installations. NS Power clarified that the decommissioning option only applies to the Ruth Falls portion of the Sheet Harbour Hydro System, with the upstream structures remaining in place.