Title: Chapter 6 Preserve: Protecting Data For Long-Term Use

The objectives of this technical memorandum are: (1) to set forth the major elements of the methodology required to prepare projections of economic and demographic variables for the total state of California and economic regions of the state; (2) to summarize the principal sources of data available to prepare projections; and (3) to identify the principal problems in the compilation and use of data. The purpose of the memorandum is to assist the staff of the Forecasting Office of the Environmental Assessment Division in their assessment of the requirements to develop projections of economic and demographic variables for service areasmore » of the five major utilities of the state.« less

This paper discusses the influence on long-term predictions of the ship responses in ocean by using the Global Wave Statistics data. GWS, with special emphasis given to its scatter diagram rounded by one thousandth (1/1000), and it proposes a practical method for correcting round figure error of GWS. In order to compare predictions based on GWS with other wave data, GWS`s standard scatter diagrams of significant wave height and zero-crossing wave period are suggested to be corrected to a round number of 0.01/1000 fitted with a statistical analytic model of the conditional lognormal distribution for zero-crossing wave period. The statisticalmore » characteristics for both Corrected and Uncorrected GWS data are calculated and examined in point of quality level. And then, a series of numerical long-term predictions of ship responses such as vertical accelerations, etc. are also executed by using both corrected and uncorrected one, and both long-term predicting values are compared and investigated for standardizing the format of wave data. Based on the present comparison, it is shown that the influence (maybe underestimate) on long-term predictions of the ship response by using original GWS data, rounded by 1/1000, could not be neglected.« less

Variable generation (VG) can reduce market prices over time and also the energy that other suppliers can sell in the market. The suppliers that are needed to provide capacity and flexibility to meet the long-term reliability requirements may, therefore, earn less revenue. This chapter discusses the topics of resource adequacy and revenue sufficiency - that is, determining and acquiring the quantity of capacity that will be needed at some future date and ensuring that those suppliers that offer the capacity receive sufficient revenue to recover their costs. The focus is on the investment time horizon and the installation of sufficientmore » generation capability. First, the chapter discusses resource adequacy, including newer methods of determining adequacy metrics. The chapter then focuses on revenue sufficiency and how suppliers have sufficient opportunity to recover their total costs. The chapter closes with a description of the mechanisms traditionally adopted by electricity markets to mitigate the issues of resource adequacy and revenue sufficiency and discusses the most recent market design changes to address these issues.« less

No abstract prepared.