Articles From May 2009

High Head Licenses Issued

Posted in News on Saturday 23rd May 2009 at 7:17pm

WRE has continued to secure further Abstraction Licenses for small hydro schemes.  Two new licenses issued this week will allow planning of schemes to move to the next phase; these sites include a small site with 50m of head, which emphasises how WRE work with all sizes and types of micro-hydro equipment.  Installation at this site will be lead by the site owner, to construction drawings from WRE.  We will also supply and install all powerhouse equipment.

Screw Turbine Progress

Posted in Projects on Saturday 23rd May 2009 at 7:05pm

One week into the construction of a new ultra-low head hydro scheme in South Somerset, and the system is taking shape.  WRE is responsible for the majority of the installation, and is carrying out the civil work currently.  The system is a 23kW peak output, on a very modest 1.6m head, and is utilising a screw turbine.  Construction is occurring in two phases, to make use of the best weather and to account for turbine delivery times.  After an initial 3 week phase to construct the concrete works, WRE will move to another site to install and commission a smaller screw system, before returning in late June to complete the works.

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Another Commissioned System

Posted in News on Saturday 23rd May 2009 at 6:28pm

WRE has recently commissioned a new hydro system on Dartmoor.  The site is typical of the myriad of small mill sites which once dotted the country, and most of which are not currently harnessing the latent power available.  The site has been installed as a joint effort between the site owner and WRE.  Our input has been in specifying, supplying and installing fish and debris screening, as well as all aspects of the electrical and mechanical equipment.  The 5.5kW system has generated power, and awaits only a few finishing touches to the old leat system before full switch-on.

WRE is close to launching a new programme aimed specifically aimed at small mill sites, which suffer from high costs when a conventional bespoke design process is used.  WRE has the experience to offer ‘standard technical packages’ for a range of sites which will guarantee depth and quality of the design, as well as reducing uncertainty and total costs.  We will launch the HEADstart package in the next few weeks.

Automatic Screeners

Posted in Products on Friday 1st May 2009 at 2:54pm

WRE Ltd is pleased to announce that we have introduced a standard stainless steel automatic screener.  We have been manufacturing these products on a one off basis for sites for a number of years, but have now introduced a standard sizing of screen for moderate sized abstractions (around 50 to 250 litres per second for the standard model, and up to 500 litres per second at an additional extra cost), which has allowed a higher specification to be offered at a lower price.  The screeners have a stainless steel construction for the supporting framework, and employ a sturdy 10mm stainless steel mesh conveyor.  Use is made of laser cut parts to optimise quality, and standard interchangeable mesh and drive components.  These screeners are particularly suitable for old mill sites where it is important to minimise head loss, as well as fit within existing structures.  The first deliveries of these products have been made, and are operational.  The systems are available with a 4 week lead time, and cost £1,800 ex-works.

The screeners will form part of a complete standardised design and technical package to be launched shortly by WRE Ltd, to drive down costs and maximise the potential from small output, medium head sites in the region of 2 to 10kW.  We believe that the conventional approach to bespoke design of systems becomes a problem at these small sites where high feasibility and design costs can swamp projects and owners.  Look out for full details in the near future.