Increase performanceof your PV systemis crucial.Improvedproductivityin factleads to greaterproduction of electricityduring the year andthereforemore gainorsavings.The action toput in placeare few and simpleandwill illustrate themtodayin this guide.
How to increase theproduction of electric energy First youneed to check theinsulation of themodules that mustalwaysbe exposedto sunlight. Usuallythe plantsare installedin the summer orspring,when the sun is higher.The technicianshavethe toolsto studythesolar movementthroughoutthe year, so they are able to predictanyshadowsthat may ariseduring the hoursof the day, especially in the early morningorlate afternoon. However, this doesnot always happen. A shadowcouldnothave been predicted. Alight pole, a tree, a building.Everything may interpose between the sun andsolar module,a shadow on panel may invalidate performance of all the modulesconnected in the samestring. Secondly, it isalwaysadvisable to cleanthe solar panels, especially after a rainorafter days ofwindfrom the southwho may havebroughtsand.There is also thebird droppings, whichimpairsthe efficiency of amodule. Use a spongeandwater and rinsetheglassmodule. If is not possibile to reach themyou can use a rod.Be careful not touse abrasives products, too aggressiveor brushesthat couldscratch the glassthatwould prejudice theoperationof the module.
Choosesolar panelswith high efficiency. In the design phaseone of the indexesthat we need toconsiderin the choice ofmodulesis the level ofefficiency:only a partof the energy comingfrom the sun isin factusedfor the conversioninto electricity. We speakof valuesusuallybetween 13and 20%forcrystalline silicon modules(mono or poly) and of9-12% for the thin film panels. On the market therearehigh performance modules, such as SunpowerandPanasonic. They areuniquebecause they canhaveefficienciesof 20%against an average of15%.It means toproduce more electricityusing the samespaceoccupancyof the module.Obviously we have toconsiderhigher spendingfor their purchase.
You can have an increasein the productionof electricityduring the yearusingsolar trackers. The modules aremounted on baseswithan electric motorthat rotateswith the movementof the sun.The panelswill always beexposedperpendicularlyto the sun, so the exposureishigh andproductionincreased. However, the electricity produced inthe mostwill be absorbedby the motor of the solar trackers and you may consider also costsforthe purchase ofsolar trackers.
Keepa registerof production. Keepa notebookon whichmarkthedaily performance. Then you will havecontrol of the situationin case of failureordrop in production and will be abletorealizeimmediatelythat something is wrong. It could be afailure of amodule, a shadowcaused by thesuddenflutteringofa sheetthatwent onapanel, oreventhe theftofsomeform. Remember thatto prevent theft there are on the marketexcellentspecific alarmsfor solar panels.