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--- electrical:solar:panels [2018/05/19 08:18]
frater_secessus [Specifications]
+++ electrical:solar:panels [2019/05/09 20:13]
frater_secessus [thin film]
@@ Line 41: / Line 41: @@
   * PRO
     * least expensive PV per watt
+    * better match for PWM due to slightly lower Vmp.
   * CON
     * efficiency (13%-16%) is less than mono.  This works out to 3%-5% less power for a given area.((https://www.altestore.com/blog/2016/09/monocrystalline-polycrystalline-solar-panels/))
@@ Line 49: / Line 50: @@
 ==== thin film ====
+[Note:  actual thin-film panels are rarer as of 2018.  The market has gone to flexible mono or poly((which do not have the benefits described below))]
 //Thin film// or //amorphous// PV uses photovoltaic material deposited on a substrate rather than silicon crystals.
@@ Line 102: / Line 105: @@
 higher voltage panels are more common on the used market, as people upgrade residential/commercial installations
-MPPT controllers do a DC-DC downconversion that is quite efficient. If Vmp isn't required most will move PV voltage away from Vmp to prevent power from ever getting to the CC.
+MPPT [[electrical:solar:charge_controller|controllers]] do a DC-DC downconversion that is quite efficient. If Vmp isn't required most will move PV voltage away from Vmp to prevent power from ever getting to the CC.
 Higher voltage panels can reduce wire costs; amps are cut in half for the same amount of wattage.

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