Slow Regulation Data Explanation To accompany file ÒRegulation Signal Slow DataÓ This describes the PJM signal for slow regulation, captured from a regulation resource (in PJM terms, ÒREG-AÓ). It is available from the UD V2G Web site, along with an accompanying file for fast regulation. The operationalizing principle of V2G is that during the 22 hours (or so) each day that your vehicle is not being driven it can be operating in a commercial electrical market, and so earning you money. An examination of electricity services markets indicates that the highest value for V2G is that in Frequency Regulation. Frequency Regulation (or simply 'regulation') can be described as responses on the part of generators to rapid, unpredictable changes in load, and is provided by grid operators (ISOs or RTOs) through a market mechanism. Potential suppliers of the service make bids for upcoming time intervals of the form 'We can provide X kW of frequency regulation' for $Y/hour'. The grid operators sort the bids from lowest price to highest, and contract with all suppliers at the price offered by the last supplier needed to get the required quantity of regulation, known as the "market clearing price". The regulation signal is generated by the grid operator in response to changing loads, and is broadcast to those market entities. In this data file, 10 consecutive days of the regulation signal generated by PJM Interconnect are presented. The first column is a date, in the format 'days after 12:00 am on the first day'. The second column (separated by a coma) is the regulation signal normalized to the range of -1:1. Last updated June 2013 by Willett Kempton