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Enercon-E138
We currently work with one Enercon turbine model:
Enercon E-138 Wind Turbine
The Enercon E-138 is the only Enercon turbine model currently offered by Renewables First. Designed for medium wind speed sites, the E-138 combines a large 138-metre rotor with a rated output of 4.26 MW, making it suitable for commercial, industrial and utility-scale renewable energy projects. It is particularly effective where there is significant onsite electricity demand or sufficient land available for a larger turbine installation.
Key Applications
The E-138 is typically suitable for:
- Medium wind regime sites (around 8 m/s mean wind speed)
- Commercial and industrial facilities with high electricity consumption
- Large agricultural estates and landholdings
- Private wire renewable energy schemes
- Sites seeking to maximise energy yield from a single turbine
Technical Specifications
| Specification | E-138 EP3 |
| Rated Output | 4,260 kW |
| Rotor Diameter | 138 m |
| Wind Class | IEC IIA |
| Annual Energy Production (at 7 m/s mean wind speed) | 13,135,150 kWh |
| Available Hub Heights | 81 m, 99 m, 111 m, 131 m, 160 m |
| Site Mean Wind Speed | 8.0 m/s |
| Site Suitability | Medium wind regime sites |
| Swept Area | 15,011 m² |
The E-138 EP3 is available with hub heights ranging from 81 metres to 160 metres, allowing the turbine configuration to be optimised for local wind conditions and planning constraints. Its large rotor diameter enables excellent energy capture, particularly on medium wind speed sites.
Energy Production
At a site with an average wind speed of 7 m/s, the E-138 can achieve an annual energy production of approximately 13.1 GWh. This level of generation can make a significant contribution towards reducing grid electricity consumption and lowering carbon emissions for large energy users.
For the latest information visit Enercon’s Product Page
About Enercon
Founded in 1984 by engineer Aloys Wobben, Enercon is one of the world’s leading wind turbine manufacturers and a pioneer of direct-drive wind turbine technology. In 1992, the company introduced its first gearless turbine, a design that eliminates the need for a conventional gearbox and reduces the number of moving parts within the drivetrain.
This direct-drive approach has become a defining feature of Enercon turbines, helping to reduce mechanical wear, lower maintenance requirements and improve long-term reliability. Today, Enercon turbines operate across Europe and around the world, with the company continuing to develop advanced wind energy technologies focused on efficiency, performance and operational reliability.
The E-138 EP3 builds on decades of engineering experience, combining a large rotor diameter, high energy yield and Enercon’s proven direct-drive turbine concept.
Is this turbine right for my project?
Our engineering team assesses every project individually, considering factors such as wind resource, grid connection capacity, planning constraints, environmental impacts and energy demand. The Enercon E-138 has proven to be a strong option for medium wind speed sites where high energy production and long-term reliability are key objectives.
For a tailored assessment of whether an Enercon E-138 would be suitable for your site, please contact our wind energy consultants.
Are you considering a wind turbine project?
Renewables First are an experienced wind consultant and have a full project capability, from initial feasibility study through to wind consenting and installation.
If you are interested in installing a wind turbine, the first step is to contact us to discuss your requirements and to complete a Wind Turbine Feasibility Study.