Ways to Solve Your Grid Feed-in Challenges

 

Various grid feed-in restrictions from utility companies across the globe make adhering to these requirements a challenge for solar PV installers. Here are 3 ways you can meet local requirements, minimize loss and still maximize return on your solar investment.

1. Power Curtailment – Controlling Inverter Output,  Limit Grid Feed-in (Export Control)

Solar-Log® measures building power usage with an integrated consumption meter. Next, the Solar-Log adjusts inverter output to ensure that grid feed-in (the difference between the current production and usage) does not exceed the maximum amount defined. Set output to a certain percentage of total inverter capacity or to a set kW amount. If grid export is not allowed, the Solar-Log® controls the inverters to produce just enough power to cover the building usage. We call this case zero grid-export.

2. Optimized Self-Consumption – Making use of self-produced power onsite

Instead of shedding PV yield, power can first be directed towards self-consumption. By monitoring building usage, the Solar-Log® calculates the current power surplus. Next, Solar-Log turns appliances on/off via networked smart plugs taking advantage of peak solar hours and maximizing the amount of self-produced power consumed onsite.

3. Integrated Storage Systems – Storing excess power for future use

Instead of shedding PV power (as outlined in #1), power can be stored in batteries. Plant owners can maximize power production and make use of stored power onsite. Solar-Log’s increasing list of compatible batteries includes Fronius, Kyocera, Phonosolar, Sonnen, and Varta. Monitor battery state-of-charge and energy flow within the Solar-Log® WEB portal. If feed-in is limited to a specific kW amount, plant owners maximize on incentives by exporting stored power at varying times during the day.
These solutions allow installers to put up larger solar PV plants in areas where they otherwise would not be possible. It allows end users to take advantage of the self-produced power and maximize plant return. These solutions minimize the amount of grid consumed power and assist with a more reliable, stable grid.

Let us find the best solution for your next project!