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--- opinion:frater_secessus:efficiency [2025/04/30 15:54]
frater_secessus [solar charge controllers]
+++ opinion:frater_secessus:efficiency [2025/04/30 15:57] (current)
frater_secessus ["Efficient"]
@@ Line 7: / Line 7: @@
   * //better//
-  * //makes more power//
+  * //preferable//
+  * //makes more power//
+  * or, perhaps more cynically, //the thing I bought//
-... both without describing the use case.
+... without describing the use case.
 It will simplify matters if we think of efficiency as ''power in / power out''.  Round numbers example:  if a component requires 220W in to make 200W out then it is ~90% efficient with ~10% lost, typically as heat.
@@ Line 15: / Line 17: @@
 Made up examples:
-  * 200w inverter, 90% efficient
+  * 200w inverter, 85% efficient
   * 1000w inverter, 80% efficient
-Which one can make more 120v power?   The 1000w one.  Which one is more efficient?  The 200w one.
+Which one can make more 120v power?   The 1000w one.  Which one is more //efficient//?  The 200w one.

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