**How big of a solar generator do I need? **What if you are doing some work with a power appliance and all of a sudden electricity runs out? Frustrating right? Now, what will you do? You would definitely want to purchase a solar generator for continuous power. You will go to a marketplace and ask for a solar generator to buy but you have no idea how much power it must possess to work for you. Nevertheless, this question about solar generators should not be neglected before purchasing a solar system. How big of a solar generator do I need? Yes, this question needs your attention.

**What is a solar generator?**

Before telling you how big a solar generator does. A quick explanation about your solar generator. It is used for storing sunlight power and converting it into electric power to run appliances. It has many components for storing power energy. The solar generator has different types, ranging from small to large sizes. The majority of them typically hold between 1000 to 3000 watts hours. Solar generators are suitable for inside and outside places as well.

**How big of a solar generator do I need?**

Let’s start with a quick explanation of solar generator capacity. Capacity refers to the amount of power that this device can store- and is often listed as watt-hours. Watt is a power unit your device pulls in one-hour operation for instance *a light bulb requires 9 watts per hour, a laptop charger pulls 45 watts, a heating pad for cooking use 1000 watts, and a heating gun uses 1800 watts per hour*. Thus, you must have to determine how many watts you anticipated to output each hour.

The procedure elaborated below may take a while because you have to calculate watts, several appliances, and the peak factor. But you have to get it done to have the right size concerning your needs. You need to go through it before buying a solar generator.

**Steps for deciding how big of a solar generator you need:**

Here, are the ultimate guide about what size solar generator I need. I divide this lengthy procedure for you into some easy 9 steps. These steps are as follows:

**1. ****First, list all your appliances:**

In this first step, you need to make a list of all the appliances that you want to run on your solar generator.

Following is the list of appliances I’m looking to power run on a solar generator and their numbers may vary for you according to your needs:

List of appliances: |
Total appliances: |

LED lights | 3 |

Mobile charger | 1 |

Roof fans | 2 |

Laptop | 1 |

LED TV | 1 |

Internet device | 1 |

Printer | 1 |

Refrigerator | 1 |

Coffee maker | 1 |

PC | 1 |

Oven | 1 |

Cloth dryer | 1 |

Washing machine | 1 |

Dishwasher | 1 |

**2. ****Determine the wattage of each appliance:**

In this stage, you have to determine the wattage of all your appliances, you will get these values from your appliance manual guides. For my above list, the values were:

List of appliances: |
Watt: |
Total appliances: |

LED lights | 5W | 3 |

Mobile charger | 6W | 1 |

Roof fans | 25W | 2 |

Laptop | 65W | 1 |

LED TV | 85W | 1 |

Internet device | 30W | 1 |

Printer | 30W | 1 |

Refrigerator | 600W | 1 |

Coffee maker | 750W | 1 |

PC | 120W | 1 |

Oven | 1200W | 1 |

Clothe dryer | 5000W | 1 |

Washing machine | 1000W | 1 |

Dishwasher | 1300W | 1 |

**3. ****Determine usage hours of appliances:**

Make a rough estimate of how much each appliance you might use in a day. Now, add the hours for each appliance accordingly.

List of appliances: |
Watt: |
Total appliances: |
Hours: |

LED lights | 5W | 3 | 9 hours |

Mobile charger | 6W | 1 | 3 hours |

Roof fans | 25W | 2 | 9 hours |

Laptop | 65W | 1 | 5 hours |

LED TV | 85W | 1 | 3 hours |

Internet device | 30W | 1 | 24 hours |

Printer | 30W | 1 | 0.5 hour |

Refrigerator | 600W | 1 | 24 hours |

Coffee maker | 750W | 1 | 0.5 hour |

PC | 120W | 1 | 3 hours |

Oven | 1200W | 1 | 1 hour |

Clothe dryer | 5000W | 1 | 0.5 hour |

Washing machine | 1000W | 1 | 0.5 hour |

Dishwasher | 1300W | 1 | 1 hour |

**4. ****Multiply the wattage hour of each appliance:**

By multiplying the watt with the total appliances and the number of hours you will use, you get the wattage hour for each appliance.

List of appliances: |
Watt: |
Total appliances: |
Hours: |
Total watt hours |

LED lights | 5W | 3 | 9 hours | 135Wh |

Mobile charger | 6W | 1 | 3 hours | 18Wh |

Roof fans | 25W | 2 | 9 hours | 450Wh |

Laptop | 65W | 1 | 5 hours | 325Wh |

LED TV | 85W | 1 | 3 hours | 255Wh |

Internet device | 30W | 1 | 24 hours | 720Wh |

Printer | 30W | 1 | 0.5 hour | 15Wh |

Refrigerator | 600W | 1 | 24 hours | 14,400Wh |

Coffee maker | 750W | 1 | 0.5 hour | 375Wh |

PC | 120W | 1 | 3 hours | 360Wh |

Oven | 1200W | 1 | 1 hour | 1200Wh |

Clothe dryer | 5000W | 1 | 0.5 hour | 2500Wh |

Washing machine | 1000W | 1 | 0.5 hour | 500Wh |

Dishwasher | 1300W | 1 | 1 hour | 1300Wh |

**5. ****Sum it all:**

In this step, add up all appliances’ total watt-hour to have a defined value.

In this scenario, I got approx. value of **22,553 total WH** of all appliances.

**6. ****Dividing with power factor:**

The power factor is the ratio between the solar generator’s actual power to the perceived power. You do not have to go deep into the matter it is roughly between 0.8 to 0.9. We will take 0.85 in this example. Divide your total watts hours by the power factor i.e. 0.85.

**=22,553 / 0.85**

Hence, I get **26,533Wh** and this means you use a 26,553Wh battery for the solar generator.

**7. ****Calculating continuous power output:**

In this step, you have to multiply the number of the appliance by its watts.

For example, if you have 3 fans and every fan use 10Watts then I multiply 3 by 10. Therefore, you have 30 Watts. I hope you got it.

Let’s calculate the continuous power output of the generator for the above appliances:

List of appliances: |
Watt: |
Total appliances: |
Hours: |
Total watt hours |

LED lights | 5W | 3 | 9 hours | 135Wh |

Mobile charger | 6W | 1 | 3 hours | 18Wh |

Roof fans | 25W | 2 | 9 hours | 450Wh |

Laptop | 65W | 1 | 5 hours | 325Wh |

LED TV | 85W | 1 | 3 hours | 255Wh |

Internet device | 30W | 1 | 24 hours | 720Wh |

Printer | 30W | 1 | 0.5 hour | 15Wh |

Refrigerator | 600W | 1 | 24 hours | 14,400Wh |

Coffee maker | 750W | 1 | 0.5 hour | 375Wh |

PC | 120W | 1 | 3 hours | 360Wh |

Oven | 1200W | 1 | 1 hour | 1200Wh |

Cloth dryer | 5000W | 1 | 0.5 hour | 2500Wh |

Washing machine | 1000W | 1 | 0.5 hour | 500Wh |

Dishwasher | 1300W | 1 | 1 hour | 1300Wh |

** =10,216 * 17**

** =173,672**

**Hence,** the continuous power output is **173,672**

**Now, **divide **173,672 **by **0.85** and have get **204,320 Watts. **

That means I need a solar generator that is bigger than **204,320** watts.

**8. ****Checking peak power:**

In this step, you have to check that your solar generator’s surge power must be higher than the peak factor. If this is not higher, it means your devices will not get started.

**9. ****Checking the wattage of the generator solar panel:**

In this step, you have to determine which wattage of solar panels will recharge the generator battery fully. If you do not use solar panels with appropriate wattage your solar generator is nothing more than a waste material.

**Pro Tips**: You have to use a large solar generator for using crucial appliances and a small one for small appliances.

**FAQs:**

#### Which size of your solar generator run your refrigerator?

Before sizing a solar generator for a refrigerator, you need to determine how much your refrigerator's daily consumption of energy is in a cubic foot. After knowing your refrigerator's energy consumption, you have to determine the size of your solar generator. For this purpose, you have to consider your refrigerator size, total solar panels, number of 100 watts of solar panels, battery capacities, and solar generator power. After this, you get that only two 100W solar panels with < 1 KWh battery are best for running your refrigerator.

#### Will your solar generator use while it is on charging?

Yes, you can use your solar generator while it is on charging. Nevertheless, I do not prefer it to you because it has many disadvantages first if you run heavy appliances while the solar generator is in charge mode, the generators are depleted. Second, continuous uses of solar generators cause a long time to charge them. Third, it is overheated.

#### Is solar generator costly?

Yes, a solar generator is costly because it includes different components like an inverter, battery, solar panel, etc. these individual components are expensive and make overall make it costly.

**Conclusion:**

In this article, I have given you a complete guideline for how big of a solar generator you need. This guideline includes listing all your appliances, determining their watts, determining working hours, determining wattage hours, counting all appliance’s wattage hours, dividing with peak factor, counting generator power output, checking peak power, and final checking generators solar panel wattage. For more detailed calculation read it in depth.