GILBERT GILKES & GORDON LIMITED  

Within the Turgo range Gilkes have 16 models, including a compact range developed in 2008 for the sub 100kW market.

• Power output up to 10MW
• Head Range 100-300 mtrs
• Horizontal (single & twin jet) arrangements

Advantages of the Turgo 

• Covers the boundary between Francis and Pelton 
• Limits Over-Pressure Effect over the penstock 
• Higher speed = weight and cost reduction 
• Maintains efficiency over a wide flow range
• Superior abrasion resistance 
• Ease of operation and maintenance 

The Pelton Turbine maintains a high efficiency over a wide flow range. Whenever possible two or more jets are specified. This increases the high efficiency flow range. Every Gilkes turbine is selected and optimised to your site conditions in order to provide the best annual energy production figures.

• Power output up to 30MW
• Head range 100 – 1000 mtrs
• Horizontal (single & twin jet) arrangements

Advantages of the Pelton 

• Minimum wear
• No cavitation damage 
• Limits Over-Pressure Effect over the penstock 
• Speed load control 
• High efficiency over wide flow range 

Gilkes Francis Turbines are available as either horizontal or vertical units. The water enters the spiral, or scroll case, and is directed by a series of moveable guide vanes, or wicket gates, to the turbine runner.  Gilkes Francis runners can be offered fully machined from a single forged block or as a casting solution.

 Gilkes Francis model range includes 8 different specific speed designs. The Hydro team at Gilkes can advise on the best solution for your project.

• Power output up to 30MW
• Head range 30 – 400 mtrs
• Horizontal & vertical arrangements

 Advantages of the Francis 

• High efficiency 
• Suitable for a wide range of applications 
• Compact construction 
• Covers a wide head range 

Gilkes have a great deal of experience from single part replacement or upgrade to fully rehabilitating whole hydro installations back to their optimum working levels.

Modernisation can improve the overall efficiency of your scheme. Increased generation and reduced downtime can provide improved annual energy production due to higher reliability and lower operator dependence. 

Optimising components with updated technology can help you meet changing compliance regulations and offer plant safety improvement.

Following a site survey and condition assessment by our engineers, Gilkes can offer refurbishment and optimisation work for both mechanical and electrical equipment: From small components, through re-governing, right through to complete turbine replacement resulting in improved performance and functionality.

REFURBISHMENT

• Reconditioning of existing components to as new.
• Replacement of secondary or minor components.
• Supply of direct replacement or equivalent spare parts.

OPTIMISATION

• Replacement of primary components with updated technology.
• Replacement of significant parts of the installation.
• Complete replanting of the scheme.

ADVANTAGES OF ENERGY RECOVERY USING HYDROPOWER

• Energy Generation from an Existing Process
• Reduces Environmental Impact
• Turbine as a Flow Control Device
• Replaces Pressure Reducing Valve Function
• High Efficiency and Reliability

Gilkes offers solutions whereby the potential energy that was once destroyed can be utilized for power production.

Gilkes has a range of turbines that can be optimized to a specific site to harness the potential energy of the water and turn it into electricity, utilizing either a reaction or impulse style of turbine. Where downstream pressure is required, or a turbine is fitted within a pressurized system, a Francis (reaction) turbine is the preferred choice. If the turbine can discharge to atmosphere, then a Gilkes Turgo or Pelton turbine can be installed. The Gilkes Turgo is ideally suited to and is often installed at the head of a water treatment facility where it can be utilized to control flow through the facility as well as generate power at the same time.

The electrical power that is produced by our turbines can be used in a number of different ways;

• The electricity can be used to power a water treatment/wastewater treatment facility to offset their annual energy consumption in a ‘behind the meter’ application
• The electricity can be sold directly in the grid with the means of a power purchase agreement
• If more power is produced than can be consumed, a combination of behind the meter and export to the grid can be achieved