We know that 100-watt solar panels produce 100 watts of electricity (in ideal conditions). That only tells us how much power does 100-watt solar panel produce. It doesn’t really tell us how many **amps** does 100-watt solar panel produce, does it?

We can answer *‘100 watt solar panel: how many amps’* question quite easily. That’s because we know the two required specifications of 100-watt solar panels that help us calculate how many amps does 100-watt solar panel produce. These are:

**Electrical Power**How much power does a 100W solar panel produce? Well, we already know this; a 100W solar panel produces 100 watts of power.*(Wattage)*.**Electric Potential Difference**All 100-watt solar panels run on a 12-volt circuit. That’s because most of the batteries have a 12V voltage.*(Voltage)*.

Based on wattage and voltage, we can easily calculate how many amps does 100-watt solar panel produce, using the electric power equation:

**P (watts) = I (amps) × V (volts)**

We will calculate the number of amps 100-watt solar panel produce in ideal conditions (100% efficiency). What is even more important, we will estimate how many amps does such a panel produce at **90%, 80%, 70%,…, 10%** efficiency. That will give us a more realistic insight into amperes produced during the day as well as during the night.

## 100 Watt Solar Panels: How Many Amps Exactly?

By rearranging the equation above, we can express the electric current I (or amps, as it’s customarily known) like this:

**I (amps) = P (watts) / V (volts)**

We know that power is 100 watts (P) and that we have a 12-volt circuit (V). We just plug these two figures in the equation and we get how many does 100-watt solar panel produce:

**100-watt panel amps = 100W / 12V = 8.33 amps**

There you have it; a 100-watt solar panel produces **8.33 amps**. But that’s only at ideal conditions for a solar panel (77°F or 25°C, no clouds, and so on).

Most of the time, we don’t have ideal conditions. There are clouds, temperatures higher or lower than 77°F or 25°C, even rain, and obviously night. In such realistic conditioners, the amp output of 100-watt solar panels drops.

To help you understand how many amps can 100-watt solar panels produce in a realistic conditioner, we have calculated the amp output in non-100% perfect conditions. Here are the amps produced in realistic conditions:

100W Percentage Output: | Produced Amps: |
---|---|

100% output | 8.33 Amps |

90% output | 7.50 Amps |

80% output | 6.67 Amps |

70% output | 5.83 Amps |

60% output | 5.00 Amps |

50% output | 4.17 Amps |

40% output | 3.33 Amps |

30% output | 2.50 Amps |

20% output | 1.67 Amps |

10% output | 0.83 Amps |

With these calculations, you can get a realistic illustration of how many amps does 100-watt panel produce.