Battery storage planned for Statoil’s floating windfarm
Norway’s state-owned oil company, Statoil, is to integrate battery storage with its new floating offshore windfarm in late 2018.
The project, called Batwind, will incorporate a 1MWh lithium-ion battery system alongside the five turbine, 30MW Hywind plant located some 25km off the coast of Peterhead, Scotland.
The Batwind battery array will be fitted on the coast, where Hywind’s energy export cable meets land, and is intended to capture excess wind power, thereby improving efficiency and lowering costs for offshore wind.
In addition, Statoil is reportedly investigating the possibility of adding energy storage batteries to the turbine towers at sea.
Stephen Bull, Statoil’s Senior Vice President for Offshore Wind, said in a statement: “With Batwind, we can optimise the energy system from wind park to grid. Battery storage represents a new application in our offshore wind portfolio, contributing to realising our ambition of profitable growth in this area.”
Hywind has been billed as the world's largest floating windfarm to date. Statoil envisions the Batwind add-on as a small-scale venture with massive implications for mitigating the intermittency of offshore wind.
The oil company anticipates selecting a battery provider early in 2018, and plans to install the system later that year.
Drax advances biomass strategy with Pinnacle acquisition
The Group’s enlarged supply chain will have access to 4.9 million tonnes of operational capacity from 2022. Of this total, 2.9 million tonnes are available for Drax’s self-supply requirements in 2022, which will rise to 3.4 million tonnes in 2027.
The £424 million acquisition of the Canadian biomass pellet producer supports Drax' ambition to be carbon negative by 2030, using bioenergy with carbon capture and storage (BECCS) and will make a "significant contribution" in the UK cutting emissions by 78% by 2035 (click here).
This summer Drax will undertake maintenance on its CfD(2) biomass unit, including a high-pressure turbine upgrade to reduce maintenance costs and improve thermal efficiency, contributing to lower generation costs for Drax Power Station.
In March, Drax secured Capacity Market agreements for its hydro and pumped storage assets worth around £10 million for delivery October 2024-September 2025.
The limitations on BECCS are not technology but supply, with every gigatonne of CO2 stored per year requiring approximately 30-40 million hectares of BECCS feedstock, according to the Global CCS Institute. Nonetheless, BECCS should be seen as an essential complement to the required, wide-scale deployment of CCS to meet climate change targets, it concludes.