#green technology #Germany #Offshore Wind #Hamburg #Envision

Envision Energy's EN-252/16.7 Offshore Wind Turbine

Envision Energy, recognized globally as a leader in green technology, has unveiled its latest innovation in offshore wind technology: the EN-252/16.7. This state-of-the-art offshore wind turbine is engineered specifically for regions with strong wind profiles and caters to the growing demands of international offshore markets. With a rated capacity of 16.7 MW, this turbine boasts a high-performance rotor and an integrated drivetrain, all aimed at enhancing energy production, reliability, and overall project return on investment (ROI).

Optimized Energy Production

The EN-252/16.7 builds upon the robust Model Z platform, leveraging over a decade's worth of expertise in the design and operation of offshore wind turbines. This new turbine utilizes advanced technology specifically tailored for European wind conditions, which significantly bolsters its energy output. It combines a high energy generation capacity with vertically integrated technologies for critical components. This integration fosters improved safety and advanced grid connection capabilities, alongside a AI-powered lifecycle monitoring system known as Galileo.

Christian Schrimpf, Envision's Executive Vice President for Offshore Wind, stated, "The next phase in offshore wind isn't merely about scaling turbine size. The true value of scalability lies in its effectiveness in delivering increased energy production, heightened reliability, and enhanced economic benefits throughout the project lifecycle. The EN-252/16.7 merges these capabilities to provide our customers with greater long-term value from offshore wind."

Project ROI through Enhanced Capacity

With its impressive 16.7 MW output and a rotor area-to-power ratio of roughly 2.99 square meters per kilowatt, the EN-252/16.7 is designed to maximize energy yield from offshore locations characterized by high winds. This innovative turbine can deliver an approximate 1-2% increase in annual energy production at gigawatt-scale offshore wind farms and reduces the number of turbines needed by about 10%. This reduction potentially lowers the levelized cost of electricity (LCOE) by 2-4%, depending on site-specific conditions and project configurations. For optimal site conditions, the turbine may also deliver additional power, further enhancing the potential reductions in turbine count and associated capital expenditures (CAPEX).

Reliability Anchored in Proven Engineering

Reliability is at the core of the EN-252/16.7, supported by extensive component and system validation in Envision's proprietary testing facilities. These validations encompass rigorous drivetrain load testing and over 600 hours of accelerated lifespan testing, designed to assess the limits of each component under difficult operational settings. Envision's vertically integrated approach to designing and manufacturing essential components solidifies the turbine’s reliability, drawing from experience with approximately 12,000 gearboxes, 12,000 main bearing sets, 25,000 blade sets, 23,000 generators, and 28,000 inverters.

Resilience Against Harsh Offshore Conditions

The EN-252/16.7 is specifically crafted for safe and dependable operation, even under extreme oceanic conditions, including high wind events. The turbine can withstand an average extreme wind speed of up to 58.5 m/s over 10 minutes, as well as a 3-second gust of 82 m/s, an occurrence projected to happen once every 50 years. The turbine's safety protocols are enhanced by its capability to integrate with energy storage solutions. This ensures a reliable backup power supply for critical turbine components and essential functions during power outages—such as during pre-commissioning, harsh storms, or typhoons.

Additionally, the turbine features grid-forming capabilities, black-start capabilities, and stable operation during weak grid conditions and faults, enhancing its robustness against extreme weather events and ensuring continuity of power and operations.

AI-Powered Lifecycle Management

To further strengthen reliability, the EN-252/16.7 leverages Envision's AI-driven Galileo system. This cutting-edge technology fosters earlier fault detection and proactive maintenance throughout the turbine's lifecycle. Currently utilized in over 20,000 turbines, Galileo employs over 30 functional models to monitor vital components and critical failure modes, offering advance warning reports up to six months in advance based on varying conditions.

By facilitating timely maintenance planning, the system significantly reduces unplanned interventions and minimizes operational costs (OPEX) over the turbine's lifespan. Moreover, the turbine includes an AI interface, paving the way for future upgrades and continuous advancements in intelligent turbine operation.

In summary, the EN-252/16.7 marks a significant advancement in offshore wind technology, promising to deliver higher energy outputs, greater reliability, and an overall reduced cost of energy, thus significantly enhancing the viability of offshore wind projects on a global scale.