This page shows daily plots of forecast grid data for offshore wind energy in Belgium, year 2022. We use quarter hour forecast data from Elia, which is corrected with up-scaled measurement data for the monitored capacity. The monitored capacity can deviate from the installed capacity; and it can change over time. Therefore values normalized to kWh/day per kWpeak, and also hourly fluctuations are provided. In general grid forecast data is more accurate than weather re-analysis from satellite data.

offshore	2022	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Monitored capacity (GWpeak)	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25	2.25
Cumulative energy (GWh)	6644	657	1659	2064	2645	3038	3395	3674	3933	4370	5013	5923	6644
Monthly energy (GWh)	6644	657	1003	404	582	393	357	279	259	437	643	909	721
Normalized cumulative sum (kWh/kWpeak)	2947	291	736	915	1173	1348	1506	1630	1745	1938	2224	2627	2947
Normalized monthly energy (kWh/kWpeak)	2947	291	445	179	258	174	158	124	115	194	285	403	320
Normalized cumulative distribution [%]	100 %	9.88 %	25.0 %	31.1 %	39.8 %	45.7 %	51.1 %	55.3 %	59.2 %	65.8 %	75.5 %	89.1 %	100 %
Normalized monthly distribution [%]	100 %	9.88 %	15.1 %	6.09 %	8.75 %	5.91 %	5.37 %	4.2 %	3.9 %	6.57 %	9.68 %	13.7 %	10.9 %
Capacity factor [%]	33.6 %	39.1 %	66.2 %	24.1 %	35.8 %	23.4 %	22.0 %	16.6 %	15.4 %	26.9 %	38.3 %	56.0 %	43.0 %

Average hourly data:
The plots below show hourly data, normalized to kiloWatt per installed capacity expressed in kiloWatt peak. The Elia grid data contains four data points per hour, these are averaged to represent a single hour on the plot. So the hour 14 combines data points from 14:00, 14:15, 14:30 and 14:45 for example. In the legend we display the avarage daily generated energy in kWhpeak per month. The maximum achievable energy per day is 24 kWh per kWpeak of installed capacity, since there are 24 hours in a day. Fluctuations are summarized with boxplots for the entire year and per month.

Acknowledgement: many thanks to Elia for open access to offshore wind grid data of Belgium at www.elia.be/en/grid-data. This data is licensed under the Elia Open Data License, which uses the CC BY-4.0 public license, and is governed by Belgian law.

User guide: most of the figures on this page are dynamic boxplots. A png image can be downloaded with the pop-up window at the right upper side. These functions require that javascript is enabled. Boxplots are explained here.