<p>The Department publishes historic capacity factors (also known as load factors) for offshore wind generation. These can be found in ‘Digest of UK Energy Statistics: Chapter 6.3’ - <a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.gov.uk%2Fgovernment%2Fstatistics%2Frenewable-sources-of-energy-chapter-6-digest-of-united-kingdom-energy-statistics-dukes&data=05%7C02%7CParliamentary.PQ%40energysecurity.gov.uk%7Cfb4b1c85aaaf4e53f0c908dc36d2dbcc%7Ccbac700502c143ebb497e6492d1b2dd8%7C0%7C0%7C638445526493280327%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=N79TrlBdQ3XX8UHOhUhbKfZQ9L89DOT3YWNGxuchB%2FM%3D&reserved=0" target="_blank">https://www.gov.uk/government/statistics/renewable-sources-of-energy-chapter-6-digest-of-united-kingdom-energy-statistics-dukes</a></p><p> </p><table><tbody><tr><td><p><strong>Year</strong></p></td><td><p><strong>2018</strong></p></td><td><p><strong>2019</strong></p></td><td><p><strong>2020</strong></p></td><td><p><strong>2021</strong></p></td><td><p><strong>2022</strong></p></td></tr><tr><td><p>Offshore Wind Load Factor (%)</p></td><td><p>39.9</p></td><td><p>40.4</p></td><td><p>45.7</p></td><td><p>37.4</p></td><td><p>40.7</p></td></tr></tbody></table><p><br> The Department publishes estimates for future offshore wind load factors for given commissioning years in Annex A of ‘Electricity Generation Costs Report 2023’ -<a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.gov.uk%2Fgovernment%2Fpublications%2Felectricity-generation-costs-2023&data=05%7C02%7CParliamentary.PQ%40energysecurity.gov.uk%7Cfb4b1c85aaaf4e53f0c908dc36d2dbcc%7Ccbac700502c143ebb497e6492d1b2dd8%7C0%7C0%7C638445526493290733%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=OS7hyZSxUl28XmxgX44YjCNhQ%2FQOS9%2Ffa5iZtQ%2FfWJg%3D&reserved=0" target="_blank">https://www.gov.uk/government/publications/electricity-generation-costs-2023</a></p><p> </p><table><tbody><tr><td><p><strong>Year</strong></p></td><td><p><strong>2025</strong></p></td><td><p><strong>2030</strong></p></td><td><p><strong>2035</strong></p></td><td><p><strong>2040</strong></p></td></tr><tr><td><p>Fixed Bottom Offshore Wind Load Factor (%)</p></td><td><p>61</p></td><td><p>65</p></td><td><p>69</p></td><td><p>69</p></td></tr></tbody></table><p> </p><p>The main reason we expect load factors to be higher for new wind farms commissioning in 2025 compared to the existing fleet is due to the increased turbine size and improved technology of newer turbines.</p>