Next invitation to tender "Wind an Land" on 01.08.2017 with 1,000 MW – high oversubscription once again anticipated

In mid-May, the Federal Network Agency published the results of its first invitation to tender, "Wind an Land", which greatly surprised many stakeholders. Övermöhle Consult had already accurately and publically predicted the tender results back in November 2016 at the "25th Wind Power Days" held in Potsdam.

The awarded quantity of 800 MW was followed by 256 bids with a total volume of 2,137 MW, of which around 975 MW had "qualified" through presentation of certification pursuant to the Federal Emission Control Act (BImSchG). The remaining 1,160 MW was accounted for by so-called civic power companies (Bürgerenergiegesellschaften or BEG), which in line with EEG 2017 are privileged, and do not require BImSchG approval to participate in the invitation to tender.

Niels immerkjaer

Effectiveness of tubercle technology confirmed in wind tunnel tests

Noise development and load peaks diminished by modified rotor blades

The Munich-based engineering company TEG GmbH, established in 2013, has secured exclusive worldwide licensing rights for the tubercle technology, which comes from Canada and is derived from the field of bionics. After two years of development, a key milestone has been achieved with the wind tunnel tests conducted last week in Brunswick, Germany. These tests confirmed the effectiveness of tubercles integrated on wind turbine rotor blades.

What initially sounds like a standard procedure is, in actual fact, a minor revolution in the history of wind power. Even before finalisation of all the evaluations, it can already be stated that significant enhancements in the sound characteristics and design loads could be measured in the wind tunnel tests. The comparative measurements were conducted on a conventional rotor blade – with and without tubercles – of a 2 MW wind turbine from a German manufacturer. The measured optimisations could be achieved without increased resistance coefficients, which otherwise would have diminished the yield during subsequent operation of the wind turbines.


Timely co-operations with strong partners – a successful path for small developers, even during the "turbulent times" of calls for tender

Extremely controversial discussions about EEG 2016 are currently taking place. What is certain, however, is that next year there will be calls for tenders for new wind energy projects in Germany. The emerging new frameworks are likely to have a significant impact on the established business models of small and medium-sized developers, and can even pose a threat to their very existence.

Project developers face the challenge arising from the fact that planning times for wind park projects have become considerably more prolonged in recent years, coupled with a steep rise in their own preliminary work and the external costs (e.g. expert reports, fees) that have to be outlaid in advance. This can cause considerable liquidity bottlenecks, particularly for smaller project developers. This situation will be considerably aggravated by calls for tenders, since an immediate realisation of a wind farm after the Federal Emission Control Act (BImSchG) permit has been granted is no longer assured, as used to be the case in the past. For this reason, further delays can be expected – or even a non-realisation if a contract is not awarded to the tenderer, therefore resulting in a total loss.


Startup TEG The Energy Generator GmbH awards Övermöhle Consult & Marketing comprehensive consulting contract

Regensburg-based TEG makes it possible to significantly improve the operating performance of wind turbines in terms of noise and service life with a patented technology that has already been successfully proven on a small wind turbine. This is achieved by making aerodynamic modifications to the leading edge of the rotor blades. TEG positions itself in the market as a technological company and licensor for equipping existing wind turbines with the TEG retrofit kit, and for developing new rotor blades as the cornerstone for the next generation of blades.

"We want to quickly present the European market with persuasive arguments for our technology. To achieve this, we need strong partners who are absolutely familiar with the wind power market and have good connections. In chartered economist Klaus Övermöhle and chartered engineer Niels Immerkjaer we have succeeded in acquiring two experts with excellent contacts and years of experience in the industry," explains TEG CEO Matthias Hiegl.