Auxiliary generators, a lasting solution
Long overlooked in favour of diesel motors, auxiliary generators are making a comeback. More ecological, more durable, suited to the challenges of climate change, they are back in favour with operators.
Plant operators often used to install a small hydraulic generator to ensure a power station’s low voltage electricity supply. It was connected directly to the penstock. Having a proprietary energy source improved the availability of the installation.
Improved reliability of electricity networks
Local electricity networks are more reliable now than they used to be. It is also possible to power the auxiliary equipment by taking the electricity directly from the main generators. As a result, demand for the restoration of small auxiliary hydraulic generators has fallen. Diesel motors are usually preferred as they are cheaper to install.
Why go back to the auxiliary generator?
However, it’s not just about cost, there are a number of reasons supporting a return to auxiliary generators, notably their low environmental impact. There are also the following points to consider:
- Fire safety: the installation of a diesel generator in an enclosed area can entail costs for complying with fire safety requirements.
- Regulation: use of diesel generators is at risk of being restricted and subjected to taxes on CO2 emissions, thereby placing conditions on their usability.
- Durability: an auxiliary generator is more durable and energy-efficient than its diesel counterpart.
- Bad weather: extreme weather conditions are growing more frequent and they bring down the electricity networks. Auxiliary generators can ensure autonomous operation over a long period.
- Security when changing the penstock: an auxiliary generator provides full security when changing the penstock.
- Alternative production source: the increase in water amounts and the decrease in natural inflows offer potential for an auxiliary generator to become an alternative production source.
In view of the above, a growing number of clients are opting to restore their auxiliary generators. This is consistent with a logic based on sustainability and ecology. HYDRO is proud to support them in this transition to a greener solution.
