Domestic Solar PV + Storage Co-founded by SEAI 3.9kWP Smart Solar PV with 10kW LG Chem Battery This 3.9kWP Smart SolarEdge PV System installed with a 10kW LG Battery, which Saves approx 80% on the Annual Electricity Cost. The New PV Improved the House BER and reduced the CO2 Emission by 1529 Kg per Annum. Delgany, Co. Wicklow €3800 Grant Cashback from SEAI + €721 Savings on Electricity per Annum Get a Quote 3.9kWP Solar PV Install before picture of roof 3.9kWP PV Install After 4 Kw Solar Panel unit with the lid off 10kWH LG Chem Installed - SME Solar PV System Domestic Solar PV + Storage Co-founded by SEAI 3.5kWP Smart Solar PV with 7kW LG Chem Battery This 3.5kWP Smart SolarEdge PV System installed with a 7kW LG Battery, which Saves approx 70% on the Annual Electricity Cost. The New PV Improved the House BER and reduced the CO2 Emission by 1392Kg per Annum. Co. Laoise €3500 Grant Cashback from SEAI + €656 Savings on Electricity per Annum Get a Quote 3.5kWP Portlaoise Smart Solar PV _ Before with brackets 3.5kWP SolarEdg Smart Inverter and StoreEde Installed in Portlaoise 7kWP LG Chem Battery installed in Laoise 2 3.5kWP Smart Rooftop Solar PV Co Laoise SME Solar PV Co-founded by SEAI 11kWP Smart Solar PV This 11kWP Smart SolarEdge Rooftop PV generate approx 11,000kWH of Electricity for this Office customer, which will Saves approx €2035 per Annum. In addition, this 11kWP Solar PV Array, reduce this office CO2 Emission by 4313 Kg per Annum. IDA Business Park, Blanchardstown €2035 Savings on Electricity Annum + 25% SEAI BEC Grant as a Cashback Get a Quote 11kWP SolarEdge Cable MAnagement in Blanchardstown 11kWP SolarEdge Inverter in Blanchardstown 11kWP SolarEdge Commission in Blanchardstown Agricultural Solar PV Co-founded by SEAI 30kWP Ground Mounted Solar PV This 30kWP Ground Mounted Solar PV generate approx 30,000kWH of Electricity, which Saves approx €5550 per Annum. In addition, this 30kWP Solar PV Array, reduce this Farm CO2 Emission by 11,762 Kg per Annum. Co. Waterford, Ireland €5550 Savings on Electricity per Annum + 25% SEAI BEC Grant as a Cashback Get a Quote 30kWP Ground Mounted PV Foundation 30kWP Ground Mounted PV Paneling 30kWP Ground Mounted PV Panels Installed 30kWP Ground Mounted PV Comission 30kWP Ground Mounted PV Panels with Fronius ECO Inverter Commercial Solar PV Co-founded by SEAI 100kWP Rooftop Solar PV on Ardkeen Store This 100 kWP Rooftop Solar PV System generate approx 100,000kWH of Electricity for Ardkeen Stores, which Saves approx €15,000 per Year. In addition, this New Solar PV Array, reduce the CO2 Emission by 39,200 Kg per Annum. Waterford City, Co. Waterford €15,000 Savings on Electricity per Year + 25% SEAI BEC Grant as a Cashback Get a Quote rdkeen Stores PV Development (before) - Commercial Solar PV System Ardkeen Stores PV Development (Middle) - Commercial Solar PV System Ardkeen Stores - SME Solar PV SMA Inverters - Commercial Solar PV System Commercial Solar PV Co-founded by SEAI 130kWP Rooftop Solar PV on Flahavans This 130 kWP Rooftop Solar PV System generate approx 130,000kWH of Electricity for Flahavans, which Saves approx €19,000 per Year. In addition, this New Solar PV Array, reduce the CO2 Emission with 51,764 Kg per Annum. Kilmachtomas, Co. Waterford €19,500 Savings on Electricity per Year + 25% SEAI BEC Grant as a Cashback Get a Quote Flahavans Roof before Solar PV Panel installation Flahavans Roof Brackets Install for 130kWP Solar PV SME Solar PV - Flahavans 130kWP Rooftop PV Internal Cable Management Flahavans 130kWP Rooftop PV Fronius Inverters - SME Solar PV Flahavans 130kWP Rooftop SME Solar PV Completed by SaveMeMoney John Cane Have a Question?
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What is a Hotspot in a P.V array?

The Interconnected modules in the Solar PV Array must be electrically matched.

The strings must generate the same voltage when connected in parallel and the same current when connected in series.

 

hotspot in a Solar PV Array

  • A mismatched module will result in a relatively high reverse current
  • This current can flow through the damaged or shaded cell creating a hotspot.
  • The module or cell will now act as an internal load
  • This Effect will cause the array to dissipate power and reduce the efficiency of the array.

 

 

 

Results of a Hotspot

The high temperatures from a hotspot can degrade the PV material which will reduce the performance and operating life of the PV array.

Blocking Diodes installed within the module will not allow reverse currents to flow, and will protect the module from a hotspot.

 

What is a Mismatch?

 

Solar PV Panel Mismatch

The term of mismatch refers to the interconnection of solar cells or modules, which do not have the same identical properties.

In fact, different modules which have a different condition of each other can cause a mismatch in the PV array.

The Peak power output of a module is determined by the cell with the lowest output If a cell of a module is shaded the power being generated by the other cells will be limited by the lower performance of the shaded cell (module).

The current on the module will be limited to the current to the mismatched cell. In fact, it reduces the Current and the Voltage which can reduce the PV panel performance dramatically.

 

 

 

 

 

 

A Mismatch also can occur from a damaged P.V cell.

damage can make mismatch as well

 

 

 

 

 

 

 

 

See a Solar PV Module Mismatch example in the P.V array output below

Solar PV Panel Mismatch in a Single String

 

SaveMemoney Recommend SolarEdge Module Level Optimized Solar PV Systems, which can handle the Mismatch of the PV Panels and because of this can reduce the chance of a hotspot development in your Solar PV Array!

Click on this link to find out, why should you choose SaveMeMoney to develop your Solar PV System, Check out who we are or Visit our Portfolio to see what we have done so far.