GB Base-Load Cycling 2009--2017

This dataset provides daily aggregations of 3 cycling variables of base-load power stations in the GB power system for the period 2009--2017. It describes the number of startups, severe ramping events and average load factor of base-load generators (coal and gas-fired power stations with capacity > 100MW). It is the first of its kind, and may help improve our understanding of how cycling interacts with other factors in the power system such as renewables generation. The cycling data has been derived from operational data for the GB power system from Elexon's P114 dataset. We also include data on IRES (intermittent renewable energy sources; wind + solar) generation, total generation, and the number of active base-load generators in that year. Definitions of variables: - metered_wind_MWh: total generation of wind generators in the Elexon dataset. - unmetered_wind_MWh: estimates for total generation of unmetered wind generators from National Grid Demand data. - solar_MWh: estimates for total PV generation from National Grid Demand data. - total_IRES_generation: sum of metered_wind_MWh, unmetered_wind_MWh, solar_MWh (in MWh) - total_generation_MWh: calculated as the sum of all metered generation (from Elexon data), interconnection imports, unmetered wind generation and solar generation. - IRES_penetration: calculated as total_IRES_generation/total_generation_MWh - annual_active_baseload_gens: the number of base-load generators* which started up at least once in that calendar year. - startups_baseload: count of base-load *startups (count of events where production changed from < 1 MWh to >= 1 MWh) - load_factor_baseload: average instantenous output of base-load* generators divided by capacity during online hours only (hence measuring part-loading during operational hours) - severe_ramping_events: defined as a change in production of >= 25% of a base-load generator's capacity in consecutive settlement periods. * base-load generators defined as coal- and gas-fired generators of at least 100 MW capacity.本数据集收录了2009年至2017年间英国（Great Britain，GB）电力系统中基荷电站的3项循环运行指标的日度汇总数据，涵盖基荷发电机组（装机容量≥100MW的燃煤及燃气电站）的启动次数、剧烈爬坡事件数与平均负载率。本数据集为同类首创，可助力深化对电力系统内循环运行与可再生能源发电等其他因素交互机制的理解。 该循环运行数据源自Elexon公司的P114数据集所包含的英国电力系统运营数据。此外，本数据集还包含间歇性可再生能源（intermittent renewable energy sources, IRES，即风电与光伏）发电量、总发电量以及当年活跃基荷发电机组数量等相关数据。 各变量定义如下： - metered_wind_MWh（计量风电发电量，单位：兆瓦时）：Elexon数据集中风电发电机组的总发电量。 - unmetered_wind_MWh（非计量风电发电量，单位：兆瓦时）：基于英国国家电网负荷数据估算的非计量风电总发电量。 - solar_MWh（光伏发电量，单位：兆瓦时）：基于英国国家电网负荷数据估算的光伏总发电量。 - total_IRES_generation（间歇性可再生能源总发电量，单位：兆瓦时）：计量风电发电量、非计量风电发电量与光伏发电量的总和。 - total_generation_MWh（总发电量，单位：兆瓦时）：所有计量发电量（源自Elexon数据）、互联输电进口电量、非计量风电发电量与光伏发电量的总和。 - IRES_penetration（可再生能源渗透率）：间歇性可再生能源总发电量与总发电量的比值。 - annual_active_baseload_gens（年度活跃基荷机组数）：当年至少启动过一次的基荷发电机组数量。 - startups_baseload（基荷机组启动次数）：基荷机组启动事件的计数，即发电量从低于1兆瓦时升至≥1兆瓦时的事件总数。 - load_factor_baseload（基荷机组负载率）：基荷机组在运行时段内的平均瞬时出力与装机容量的比值，用于衡量运行时段内的部分负荷情况。 - severe_ramping_events（剧烈爬坡事件）：定义为连续结算时段内，基荷机组发电量变化≥其装机容量25%的事件。 * 基荷发电机组定义为装机容量≥100MW的燃煤及燃气发电机组。