From the Netherlands

Success for Dutch Wind Turbine Manufacturer

A 2.5 MW wind farm has been installed along the Hartel-canal in the west of the Netherlands. Comprising five NedWind 40 Series (500 kW) turbines, the farm will generate about 4.6 GWh/year, enough to supply the electricity demands of 1,500 households. The wind farm is located in a windy area, parallel to a motorway. The turbines are positioned in a line and, in view of the changing water levels in the canal, they have been erected on elevated foundations.
 The owner is GroenVast Windpark II of Rhenen, and power from the wind farm will be purchased by the Energy Board, Eneco.
 NedWind has just fulfilled its first export order to Israel with the installation of a single 500 kW wind turbine. By the end of this year, the company will have commissioned another five-turbine wind farm in Germany.
 For more information contact the
CADDET Dutch National Team in Sittard.

From the UK

UK's First Straw-burning Power Station

Approval has been secured for the UK's first straw-burning power station, to be built in Cambridgeshire, England. The power station will burn about 200,000 tonnes of straw and other energy crops each year, generating 35 MW of electricity for supply to the regional electricity company. Waste heat from the station will be utilised in a large glasshouse producing salad crops all year round on an adjacent site.
 For more information contact the
CADDET UK National Team in Oxfordshire.

From the US

New System To Improve Testing of PV Devices

An instrument called the Atmospheric Optical Calibration System (AOCS), developed and patented in the US, can quantify atmospheric impacts on radiant energy while performance data are taken from PV test devices. This will result in greater accuracy of test results as the data will no longer need to be adjusted for data taken from a reference cell.
The AOCS uses computer modelling to calculate ambient solar spectrum and PV spectral 'mismatch values' from the measured data in real time. The system can measure:

  • air pressure and temperature;
  • direct normal solar irradiance at pre-selected wavelengths;
  • direct normal and global irradiance over the 0.3-1.1 micrometre wavelength range;
  • direct normal and horizontal photon flux density over the 0.4-0.7 micrometre range.

Able to provide data from a wide variety of locations, the AOCS is a valuable tool for any field where the optical properties of solar radiation are important, not just PV. The system can also measure optical air quality and atmospheric water vapour, gases and aerosols, all properties which would be useful in environmental monitoring.
For more information contact the CADDET US National Team in Golden, Colorado.

The CADDET Renewable Energy Newsletter is a quarterly magazine published by the CADDET Centre for Renewable Energy at ETSU, UK.

The articles published in the Newsletter reflect the opinions of the authors. They do not necessarily reflect the official view of CADDET.

Enquiries concerning the Newsletter should be addressed to
Pauline Toole, Editor, CADDET Centre for Renewable Energy, ETSU, Harwell, Oxfordshire OX11 0RA, United Kingdom. Tel: +44 1235 432968, Fax: +44 1235 433595.