Your diesel generator running up unacceptable fuel bills during load shedding?
By Jack Ward, CEO of Soltra Energy
We have the answer. Save fuel by creating a
hybrid, grid-tied, diesel/solar photovoltaic (PV) installation. Such a system can
save up to 30% of the fuel used in traditional diesel-only generation.
Soltra Energy is a leader in innovative
hybrid technology that allows power generated by solar technology to work
alongside power supplied by the grid and a diesel generator, allowing you to benefit
from using less fuel while maintaining targeted power outputs.
In addition to slashing your fuel bills, the
quick payback of the solar elements of a modern grid-tied, hybrid system can
return their investment costs in three to five years.
Solar PV power is often the most
economical alternative renewable energy source in South Africa where solar
irradiation is both abundant and free. It is also one of the most desirable
ways to boost efficiency, minimise energy waste and improve CO2 emissions at
minimum cost.
The Solar PV elements of the system are
modular and can be quickly installed anywhere and only minimal maintenance is
required to keep them running.
An intelligent management system
(controller) is a key component of a solar PV/diesel hybrid system. A software
algorithm ensures the solar PV array operates at its maximum power output at
all given solar radiation levels. Only when these drop below a specified point,
or at night, are the grid and diesel generator brought in as necessary.
This software-based solution provides the
interface between the grid, the generator, solar PV system and the load,
managing demand-based PV feed-in.
For example, when the grid fails and the
generator is required to run, the solar installation synchronises with the generator.
The solar fuel saver/ controller protects the generator and ensures that the
electrical system is stable. The controller regulates output from the solar
installation and ensures that the generator is always running above its minimum
threshold.
Importantly, if the system is used in a
commercial/industrial setting where the premises are occupied only during the
working week, the generator can be disabled at night and on week-ends to
further save fuel.
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