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CaLNG : Peak Shaving to Alleviate a Supply-Demand Bottleneck

2021· article· en· W4410835667 on OpenAlexaff
Sunil Chopra, Nikolay Osadchiy

Bibliographic record

VenueKellogg School of Management Cases · 2021
Typearticle
Languageen
FieldBusiness, Management and Accounting
TopicAdvanced Queuing Theory Analysis
Canadian institutionsKellogg's (Canada)
Fundersnot available
KeywordsBottleneckDemand managementBusinessOperations managementIndustrial organizationOn demandComputer scienceMarketingEconomicsCommerce

Abstract

fetched live from OpenAlex

This case features Isabella Couchet, the chief operations officer of CaLNG, a company that planned to sell liquefied natural gas (LNG) to help California utilities better match supply and demand through peak shaving. The price of natural gas drawn from the California pipeline infrastructure increased with sudden huge demand spikes during the summer and winter peaks, so the ability to use LNG to fulfill demand during peak periods would be a significant financial benefit to utilities. CaLNG planned to receive LNG at its Coos Bay terminal in Oregon and then transport it to California using specialized trailers. It had to design its LNG supply chain while considering the costs of storage facilities and transportation. CaLNG could build a centralized tank farm at Coos Bay and, from there, use a large number of trailers for on-demand delivery. Alternatively, the company could build satellite tanks at utilities, an option that would require fewer trailers because the satellite tanks could be filled during off-peak periods.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Other · Consensus signal: Other
Teacher disagreement score0.038
Threshold uncertainty score0.076

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0020.003
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0010.001
Science and technology studies0.0030.002
Scholarly communication0.0040.005
Open science0.0020.003
Research integrity0.0030.002
Insufficient payload (model declined to judge)0.0220.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.015
GPT teacher head0.244
Teacher spread0.229 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designNot applicable
Domainnot available
GenreOther

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

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Citations0
Published2021
Admission routes1
Has abstractyes

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