Topic:"Energy Storage" in M03097

Authorized Signatory Mark Savory VP Technical and Construction DATE TUC 6 Attachment 3 Page 2 of 7 Cl Number : 28098-S353 - TUC 6 Waste Heat Recovery Project Number S353 Parent Cl Number : Cost Centre: 396 - 396-Tufts Cove Unit 6 Budget Ve...

AI summary This document provides information about the TUC 6 Waste Heat Recovery project, including its project number (S353), parent Cl number, cost centre (396-Tufts Cove Unit 6), and budget version. It is part of a larger regulatory proceeding.

Cost Centre : 396 - TUC 6 Waste Heat Recovery Project Number Approved Date 9/30/2008 S353 Parent Cl Number : - - 396-Tufts Cove Unit 6 Budget Version

AI summary The text provides details about a project related to TUC 6 Waste Heat Recovery, including its project number, approved date, and budget version. It is associated with Cost Centre 396 and Parent Cl Number 396-Tufts Cove Unit 6.

Date Filed: May 3, 2010 TUC 6 Attachment 3 Page 6 Cl Number : 28098-S353 - TUC 6 Waste Heat Recovery Project Number Approved Date S353 9/30/2008 Parent Cl Number : Cost Centre : 396 - 396-Tufts Cove Unit 6

AI summary The document provides details about a waste heat recovery project (TUC 6) with project number S353, approved on September 30, 2008, under cost centre 396-Tufts Cove Unit 6.

NON-CONFIDENTIAL 1 2 The implications of this are that the analysis, in particular the Base Case analysis, 3 is likely conservative (i.e. benefits are likely understated) for the following 4 reasons: 5 6  The Tufts Cove Units are marginal...

AI summary The text discusses the implications of the Base Case analysis, suggesting it may be conservative due to factors such as the marginal cost nature of Tufts Cove Units, potential benefits from wind development, and continued savings from duct-firing. It emphasizes the value of increased natural gas-fired generation flexibility and favorable emissions profile despite higher capital costs.

NON-CONFIDENTIAL 1 Request IR-8: 2 3 Reference Page 4 of the May 3, 2010 ATD, first paragraph on the page. 4 5 a) Please identify the types of additional resources expected to be required. 6 7 b) Please explain why additional intermittent...

AI summary The response to Request IR-8 discusses the need for intermittent renewable resources like wind energy, the necessity of fast-acting dispatchable generation for system stability, and the expectation that by 2010, operational wind generation will provide data on the impact of intermittent generation on the bulk power system.

NOVA SCOTIA POWER INC. TUFTS COVE 6 WASTE HEAT RECOVERY PROJECT TABLE 2 HEAT BALANCE SUMMARY - 2 GTS AT PART LO GT Load 70% 60% 50% 40% 30% Ambient Dry Bulb Temp. °F 45 45 45 45 45 Ambient Relative Humidity % 77 77 77 77 77 Inlet Air Tempe...

AI summary This document presents a heat balance summary for the Tufts Cove 6 Waste Heat Recovery Project, detailing electrical output, fuel consumption, and various operational parameters for different GT load levels (70% to 30%). It includes information on gas turbine outputs, steam turbine performance, and cooling water temperatures.

[1 ] On May 3, 2010, Nova Scotia Power Incorporated ("NSPI", the "Utility") submitted a request for Approval to Overspend ("ATO") to the Nova Scotia Utility and Review Board (the "Board") for the Tufts Cove 6 ("TUC6") Waste Heat Recovery P...

AI summary On May 3, 2010, NSPI requested an ATO from the Board for the TUC6 Waste Heat Recovery Project, which involves recovering waste heat from two combustion turbines to generate additional electricity. The request amount is $8,699,864, bringing the total project cost to $92,996,628.

III EVIDENCE - [16] As noted in the Board's December 21, 2007 letter to NSPI, Tufts Cove 4 and 5 are simple cycle LM6000 combustion turbines installed in July 2003 and January 2005 respectively. Both units are rated at 50 MW and are fuelle...

AI summary The text discusses the TUC6 Waste Heat Recovery Project, including its design, progress, and economic analysis. NSPI outlines the project's benefits, such as increased efficiency and additional output through duct firing, and confirms that updated assumptions remain consistent with the 2007 Integrated Resource Plan Report.

III EVIDENCE - [16] As noted in the Board's December 21, 2007 letter to NSPI, Tufts Cove 4 and 5 are simple cycle LM6000 combustion turbines installed in July 2003 and January 2005 respectively. Both units are rated at 50 MW and are fuelle...

AI summary The document discusses the TUC6 Waste Heat Recovery Project by NSPI, including its technical design, economic analysis, and progress updates. The project involves recovering waste heat from gas turbines to increase efficiency and output, with updated capital costs and in-service dates. NSPI confirms that the economic assumptions remain consistent with previous analyses and the 2007 Integrated Resource Plan.