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How many microinverters can you put on a single-phase installation? And a three-phase installation?
In single-phase, 10 microinverters can be connected. In a three-phase installation, up to 30 microinverters can be connected on a single 20A three phase circuit breaker. Larger systems can be constructed with multiple AC branch circuits.
What is the MOQ for each cells and interconnection tabs (Purpose is to string the cell together)?
- Maxeon Gen 3: 1500pcs/box
- Maxeon Gen 5: 1200pcs/Box
- Interconnection tabs:1200pcs/box
How can I attach the Interconnection tabs to the cells?
There are a number of methods but often cell customers use a soldering iron. Also we have an instruction guide that explains how to connect the cell and tabs so feel free to contact us from the inquiry page.
How is surplus solar production controlled?
Enphase microinverters offer export control by reducing power production at each microinverter to maintain export to a defined power level—which can be zero for a zero-export site. The microinverters do not offer control of surplus power beyond export to the electricity network.
Can you schedule the surpluses in any way? For example, to different appliances or an electric car charger?
Some customers have achieved some clever customised DIY solutions for re-directing surplus power using Enphase APIs, however, Enphase does not currently offer products that re-direct surplus power.
How has the system performed in high summer temperatures in Spain?
A simulated PV system performance has been evaluated in Madrid with the following results for roofs with limited space available:
- 30% more power on the roof
- 42% higher performance
- Half the degradation
In a space unconstrained situation also in Madrid:
- 10% higher yield
- Half the degradation
- Similar cash flows
- Lower risk for future maintenance
SunPower systems will also benefit from leading warranty coverage—up to 40 years in the case of SunPower Maxeon AC panels. Enphase microinverters are warranted for 25 years. For assumptions and a personalized simulation, please contact us to be connected to a SunPower installer.