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Last updated: 12 Jun 2025
Redclyffe 220 kV Switchyard Resilience Attachment 3 - Benefits Modelling
… Gabrielle unserved energy GXPs × monthly growth factor𝑡) × VoLL + cost of repair where VoLL is the value of lost load (also referred to as the … 62.0 60.9 58.3 7% discount rate 24.6 25.6 25.0 24.0 Lower VoLL $10K 12.0 12.3 12.0 11.6 Low VoLL $20k 22.8 23.3 22.9 …
Last updated: 11 Feb 2025
Redclyffe 220 kV Switchyard Resilience - Attachment 2 - Benefits modelling
… Benefits = Probability of event × (Unserved Energy × VoLL + Repair costs) We consider the following events and … Gabrielle unserved energy x monthly growth factor t ) x VoLL + cost of repair The risk in any given year is given by … 59.4 62.0 63.1 61.6 7% discount 23.9 24.9 25.5 24.9 low VoLL $20K 22.1 23.0 23.5 23.0 High VoLL $50K 53.5 55.7 56.9 …
Last updated: 02 Dec 2024
TP_Sub_Update_to_Scarcity_Pricing_29Nov2024
… set energy scarcity prices at values consistent with 2018 VoLL ($17,000/MWh, $25,000/MWh and Yes. We note the role of … Refer PWC Estimating the Value of Lost Load.pdf, Transpower VoLL Study June 2018 … the Authority indicates in Option 2 it will review the VOLL however this is not indicated for Option 3. We consider …
TP_Sub_Update_to_Scarcity_Pricing_29Nov2024.pdf
(PDF 266.32 KB)
Last updated: 12 Jun 2025
Redclyffe 220 kV Switchyard Resilience Attachment 5 - Application of the Investment Test
… No sensitivity cases. Value of expected unserved energy (VoLL22) Sensitivities of $10,000 per MWh, $20,000 per MWh … 0 36.0 -172.7 High discount rate (7%) 0 0.8 -165.8 Lower VoLL ($10,000) 0 -12.5 -192.0 Low VoLL ($20,000) 0 -1.8 -184.1 High VoLL ($50,000) 0 30.5 …
Last updated: 12 Jun 2025
Redclyffe 220 kV Switchyard Resilience - Major Capex Proposal
… sensitised Comment Value of expected unserved energy (VoLL22) Sensitivities of $10,000 per MWh, $20,000 per MWh … four demand scenarios under the standard assumptions for VoLL, capital cost, discount rate and interruption duration. … unserved energy is the same as the Value of lost load (VoLL). Sensitivity Option 1 Option 2 Option 3 Standard …
Last updated: 11 Feb 2025
Redclyffe 220 kV Switchyard Resilience - Attachment 1 - Options analysis
… and Disruptive scenarios under the standard assumptions for VoLL, capital cost and discount rate. Option 2 is also the … amount in the presence of a lower discount rate, high VoLL, low capital cost and longer outage assumptions. Option … of higher capital costs, shorter outage duration, lower VoLL and for the high discount rates. Q5. Do you agree that …
Last updated: 15 May 2025
Redclyffe 220 kV Yard Resilience Short-list - Summary of submissions
… in 2025-dollar values. We have made similar variations to VoLL in all recent MCPs. We subsequently discussed the approach to VoLL with Firstlight Networks. Firstlight confirmed in an … received 30 April 2025 that they have no issues with the VoLL calculation as their calculations, adjusted for …
Last updated: 20 Dec 2024
WBoP - Attachment 8 - Benefits modelling
… Benefits = Probability of event × (Unserved Energy × VoLL + Repair costs) We consider the following events and … outage, with 8 hours valued at the full Value of Lost Load (VoLL) and the remained at 20% of the value of unserved … cost: HILP event cost = Average(Demand profile ∗ Filter) × VoLL + Repair cost The risk is given by the annual expected …
WBoP - Attachment 8 - Benefits modelling.pdf
(PDF 1.87 MB)
Last updated: 20 Dec 2024
WBoP - Attachment 5 - Options analysis
… 527.1 Capital decrease (70% of base) 767.3 788.8 774.5 High VoLL ($60,000/MWh) 751.2 791.2 767.6 Low VoLL ($20,000/MWh) 617.5 628.2 603.7 The sensitivity …
WBoP - Attachment 5 - Options analysis.pdf
(PDF 869.67 KB)
Last updated: 25 Mar 2025
Orion - SOSFIP Review - Issues Paper Questions - March 2025
… at more than $37.5 million using the Value of Lost Load (VoLL) set out in the Code, with other estimates suggesting …
Orion - SOSFIP Review - Issues Paper Questions - March 2025.pdf
(PDF 274.67 KB)