Fronius PV-Genset Solution
Save fuel with Fronius PV-Genset solution systems
Diesel gensets and photovoltaic technology can be combined in perfect harmony. Although these technologies have rarely been in demand by the same users in the past, combining them has now become extremely beneficial technically, ecologically and, last but not least, in terms of cost effectiveness. To control the entire system the new Fronius PV-System Controller is the first choice. Fronius also provides support in planning the PV-Genset solution.
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Fronius PV-Genset solution minimises costs
In remote areas or regions where the electricity supply is patchy or extremely expensive, grids powered by diesel gensets are an absolute must. The cost per kilowatt hour of electricity from a diesel genset is largely changeable, depending as it does on fuel and other variable costs. Only a small proportion is fixed. The costs can vary widely depending on country, transport distance and increasing oil costs on the global market (€ 0.05 – 2.5 per kWh).
The price trend in the photovoltaics sector is much more positive. Over the past few years the costs per kWh from PV systems have dropped dramatically around the globe (€ 0.07 – 0.14 per kWh).
For this reason there is a clear financial justification for integrating a Fronius PV-Genset solution into almost every diesel-powered system. Every unused diesel kWh saves money.
With the Fronius PV-Genset Easy solution, photovoltaic systems can be integrated into existing diesel systems quickly and easily. The solution is optimised for low-voltage applications with a diesel Generator.
A consistent power balance (reactive and effective power) must be guaranteed within a PV-Genset system at all times. Both the load and the PV power available are subject to fluctuations. In small PV systems (just as in systems with no PV element), these variations are met by the diesel genset. Yet if the power from the photovoltaics system is proportionally quite large, the entire system must be optimally controlled to obtain the best possible diesel savings.
This is where the Fronius PV-System Controller comes into play. By using data from the Fronius inverters together with load measurements (as well as diesel genset measurements were necessary), the entire system can be monitored. Fronius inverters can thus be controlled so that the minimum load of the diesel generator is not undershot and the System remains stable.
FRONIUS PV-GENSET ADVANCED AND PROFESSIONAL
With the Fronius PV-Genset Advanced and Professional, PV systems can be quickly and easily integrated into diesel Systems in which several diesel generators are used. The controller is the communication interface for the photovoltaic system and diesel generator and assumes all control functions over the system. The solution is suitable for both low-voltage and mediumvoltage applications.
Fronius PV-Genset Advanced is the retrofit solution for multi-generator Systems.
Fronius PV-Genset Professional is the fully-integrated solution for multi-generator systems.
Optimising the PV-Genset System
It is very easy for a small PV system in relation to the load to pay for itself financially, but it does not represent a costeffective form of optimisation. As the PV output never has to be restricted, the savings can simply be identified from the annual energy calculated in the respective region. The difference between the costs of producing PV energy and the costs of producing electricity from diesel is normally quite large.The saving is therefore much higher if the size of the PV system has been designed so that temporary power restrictions are the norm or so that multiple generators can be controlled automatically.This significantly increases the amount of power supplied from photovoltaics. In order to identify the most cost-effective PV system size for each project, it is important to examine the insolation and load profile alongside the variable diesel power costs and the cost of the PV system.
Simulations are then used to calculate the highest possible savings that could be achieved. Fronius can provide you with unbeatable support in the planning of your PV-Genset system.