Standby Home Generators Reviews

Posted on  by admin

Best overall: Champion Power Equipment 100177. Check out the Champion 8.5-kW Home Standby Generator with 50-Amp Outdoor-Rated Automatic Transfer Switch. This totally automatic transfer switch has 8 available circuits and provides seamless power to your home during an outage.

Plus, it's one of the quietest generators in its class, operating at just 59.5 dBA. And with a 24-volt starting system, it can handle sub-zero or extreme heat without any issues.

Don't be left in the dark during a power outage - get the Champion 8.5-kW Home Standby Generator today! Best value: Generac 70432. The Generac 70432 Home Standby Generator Guardian Series 22kW/19.5kW Air Cooled with Wi-Fi and Transfer Switch is the perfect way to make sure your home stays protected during a power outage.

With up to whole house protection, this generator can provide backup power for all of your most important appliances. The 200 Amp, NEMA 3R (aluminum outdoor enclosure) smart switch ensures that you're always in control of your power, while the Generac evolution controller features a multilingual LCD display that allows you to monitor battery status and track maintenance intervals.

Top picks

And thanks to its 240 volts supply, this generator is perfect for powering your most demanding appliances during an emergency. Top sales: EF ECOFLOW Portable Power Station . Need a little extra power? The EF ECOFLOW Portable Power Station RIVER Max has you covered, with 3 AC outlets and a capacity of 576Wh.

This bad boy can recharge from 0-80% within one hour, so you're never left powerless. Plus, it's quiet enough to use in any situation without disturbing those around you. Whether you're outdoor camping and need backup power, or RVing and need a silent generator, the RIVER Max is your go-to!

Best design: DuroMax XP10000EH. The DuroMax XP10000EH Dual Fuel Portable Generator has plenty of power to handle your heavy loads.

With 10,000 starting watts and 8,000 running watts, this generator can run a wide variety of appliances and tools. The dual fuel technology allows you to choose between gasoline or propane, giving you the freedom to use the fuel that is most readily available to you.

The powerful engine provides plenty of power for multiple jobs. Best choice: A-iPower SUA2000iV. Introducing the A-iPower SUA2000iV 2000 Watt Portable Inverter Generator Gas Powered, Small with Super Quiet Operation.

This generator is perfect for home, RV, or emergency use. It produces 2,000 starting watts with 1,600 running watts of clean and safe power for sensitive electronics such as phones, televisions, laptops, and other electronics.

The A-iPower SUA2000iV also comes equipped with A-iPower’s “Low idle” technology for an extended run time of 4 hours at 100% load and 7 hours at 50% load. RANKING LIST|SORT BY SCORES. AR Score is a scoring system developed by our experts.

The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites. Totally Automatic – The ATS50 Emergency Essentials Automatic Transfer Switch has 8 available circuits and provides seamless power to your home during an outage.

Quietest-in-Class – Thanks to advanced sound dampening and a specially designed low-tone muffler, this generator operates at a residential-friendly 59.5 dBA noise level.

Reliable – 24-volt starting system operates in sub-zero or extreme heat (between -22° F and 104° F) with no warming kit necessary, plus the generator performs weekly self-diagnostic tests. Powerful – The 8.5-kilowatt generator provides 8500 watts of continuous power on propane and 7500 watts on natural gas, with no refueling, no manual operation and no extension cords needed.

Champion Support – Includes 10-year limited warranty with FREE lifetime technical support from dedicated experts. AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool.

This score doesn't impact from any manufacturer or sales agent websites. Up to whole house protection with the 200 Amp, NEMA 3R (aluminum outdoor enclosure) smart switch.

Smart, User-friendly controls; Generac evolution controller features a multilingual LCD display that allows you to Monitor Battery status and track maintenance intervals to ensure your generator is always in top operating condition.

240 volts supply. Receive real time status updates. AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool.

This score doesn't impact from any manufacturer or sales agent websites.

Powers 16-circuits of your home with the 100-amp, NEMA 3R (indoor or outdoor rated) transfer switch with aluminum enclosure. True Power Technology delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances.

Generac's G-Force Engine is a purpose-built, pressure-lubricated engine capable of handling the rigors of generator use, resulting in power that’s more reliable and requires less routine maintenance than any competitive engine.

Mobile Link Wi-Fi allows users to monitor the status of the generator from anywhere in the world using a smartphone, tablet, or PC.

5 year limited warranty. AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool. This score doesn't impact from any manufacturer or sales agent websites.

PowerRUSH Technology - Delivers over 50% more starting capacity-allowing you to do more with less. Up to 50% quieter - ideal for noise sensitive environments/ up to 25% lighter - for improved portability.

True power technology - clean power for sensitive electronics.

RV ready - connect directly to RV to power most RV air conditioners up to 15, 000 BTU. USB outlets and parallel ready - connect 2 units together for double the power. AR Score is a scoring system developed by our experts.

The score is from 0 to 10 based on the data collected by the Appliances Radar tool.
This score doesn't impact from any manufacturer or sales agent websites. Quiet technology and extended run time: 69 dba noise level is great for your next project or home backup, with 6250 starting watts and 5000 running watts for up to 12.5 hours run time on gasoline.

This score doesn't impact from any manufacturer or sales agent websites. ⚡【3 x AC OUTLETS AND 576Wh CAPACITY】 The RIVER Max Portable Power Station has 3 AC outlets and a capacity of 576Wh, providing users with incredible power for most of your favorite devices. ⚡【RECHARGE FROM 0-80% WITHIN 1 HOUR】 EcoFlow X-Stream Charge technology recharges the power station from 0-80% within one hour, which is one of the fastest recharging rates on the market.

Quiet Charging can be enabled from the EcoFlow app. ⚡【POWER UP TO 10 DEVICES SIMULTANEOUSLY】 EcoFlow’s X-Boost technology allows you to power devices up to 1200W, which lets you power up to 80% of essential devices like kitchen appliances, and DIY tools.

Please conduct full test on a case-by-case basis to see if the X-Boost feature can work with your appliances. Use devices below 1200W for the best product use. ⚡ 【MODULAR DESIGN】Compare with RIVER Power Station + RIVER Extra Battery ,No need to install,easier for you. The unique modular design gives you the freedom to adjust the power and portability of RIVER within seconds.

The Extra Battery doubles the capacity from 288Wh to 576Wh during situations when you need more power. You can also detach the RIVER Extra Battery easily for more portability during traveling, outdoor adventures, or any application where you need to power devices on the go.

⚡【24 MONTHS PRODUCT GUARANTEE】 EcoFlow offers a 24*7 friendly customer service, and a 24 months product guarantee. What’s in the box: 1* RIVER Max 576Wh portable power station, 5 types of charging cable (1*1.5M AC Charging Cable, 1*1.5M Car Charging Cable, 1*1.5M MC4 to XT60 Solar Charging Cable, 1*USB 2.0 to Micro or Lightning Cable, 1* Type C to Type C Cable), 1*User Guide.

AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool.

This score doesn't impact from any manufacturer or sales agent websites. Plenty of Power – With 10,000 starting watts and 8,000 running watts, this unit can handle heavy loads from lights and a refrigerator to a home air conditioner and high amperage power tools.

  • Dual Fuel Technology – This generator runs on gasoline or propane, giving you the freedom and flexibility of fuel choice.
  • Powerful Engine – The DuroMax 439cc OHV engine is a workhorse that provides plenty of power to handle multiple jobs, from powering high voltage appliances to heavy duty power tools.
  • Idle Control – Lowers the RPMs of the generator when not in use, saving fuel and reducing noise.
  • Ideal on job sites where power is used intermittently.
  • MX2 Technology - Get the maximum power from each of the 120-volt receptacles.
  • Choose between operating the generator at both 120V and 240V simultaneously, or at 120V only with full power.
  • Ideal for usage with RVs.
AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool.
This score doesn't impact from any manufacturer or sales agent websites. Produces 2,000 starting watts with 1,600 running watts of clean and safe power for sensitive electronics such as phones, televisions, laptops, and other electronics.

This score doesn't impact from any manufacturer or sales agent websites. 11, 050W Peak/ 9, 000W Rated (Gasoline) & 10, 050W Peak/8, 100W Rated (LPG). The powerful 457cc, Single Cylinder, 4-Stroke, OHV, Air Cooled Engine is protected by a Heavy-Duty Powder Coated Steel Frame.

6 Gallon High Capacity Fuel Tank gives you up to 10 Hours of Continuous Operation at half load when running on gasoline. Dual Fuel Capability lets you choose between Gasoline or LPG fuel sources for running your generator.

Switch & Go Technology allows for seamless transitioning between LPG and Gasoline fuel sources while still in operation. AR Score is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the Appliances Radar tool.

This score doesn't impact from any manufacturer or sales agent websites. True power technology delivers best-in class power quality (less than 5% thd) for Smooth operation of sensitive electronics and appliances.

Includes a 200 amp NEMA 3 (indoor/ outdoor rated) whole house Smart transfer switch. Generac evolution controller features LED indicators for generator status, utility power presence or maintenance required.

Tough, durable all-weather aluminum enclosure offers 3 removable sides for easy access for installation, service and maintenance. Battery not included.

Generac Battery 7043 5819 Sold Separately. Last update on 2022-04-16 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API.

  • If you're looking for a whole-house backup generator, it's important to consider a variety of factors before making your purchase.
  • In this blog post, we will outline 4 things you should keep in mind when shopping for a standby generator.
  • We'll discuss topics such as wattage requirements, fuel type, and installation requirements.
  • By the end of this post, you'll be able to make an informed decision about which generator is right for your home!
  • When shopping for a standby generator, the first thing you need to consider is your wattage requirements.
  • How much power do you need to keep your home running in the event of an outage?
  • This will help you determine the size of generator you need to purchase.
Next, you'll need to decide what type of fuel you want your generator to run on.
Generators can run on petrol, diesel, or natural gas. Each type of fuel has its own set of pros and cons, so be sure to do your research before making a decision.

Be sure to set a budget before beginning your search. If you are looking for a standby generator, we recommend that you read our reviews of the top 10 generators first. We have found the best generators on the market and would be happy to share them with you. Once you’ve made your decision, please feel free to contact us for more information or to place an order.

Thank you for reading our blog post! Generator-Review.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

A standby generator is not like a portable generator that can power only a handful of devices. These are powerful electromechanical equipment that can power almost all the appliances present in the house.

A portable generator is a good choice when you face long power outages frequently. These types of blackouts can interrupt your life.

  • If there is no power, then the food in your fridge will go bad, you won’t have an internet connection, and if you live in cold areas, then you won’t have hot water.
  • So, a standby generator is a sound investment, and to find you one of the best in the market, we have prepared a list of generators, which offers value for money.
  • It will provide you the information about their features and also the pros and cons.
  • Patiently go through them and see which suits your needs.
  • Fuel Type: Liquid Propane & Natural Gas.
  • Starting Watts/Running Watts (Gas): 9kW / 9kW.
  • Starting Watts/Running Watts (Propane): 10kW / 10kW.
Voltage: 120/240. Start Type: Automatic. Engline Cooling: Air. Transfer Switch Included: Yes (100-amp).
Weight: 338 Pounds. Warranty: 5 Years. Special Feature: WI-FI Connectivity, System status & Maintenance interval Indicator, Sound Attenuated Enclosure, Electronic Governor.

Engline Cooling: Air. Transfer Switch Included: Yes (200-amp). Weight: 466 Pounds. Warranty: 5 Years. Special Feature: WI-FI Connectivity, System status & Maintenance interval Indicator, Sound Attenuated Enclosure, Electronic Governor.

Fuel Type: Liquid Propane & Natural Gas. Starting Watts/Running Watts (Gas): 6kW / 6kW. Starting Watts/Running Watts (Propane): 7.5kW / 7.5kW. Voltage: 120/240. Start Type: Automatic. Engline Cooling: Air. Transfer Switch Included: Yes (50-amp). Weight: 280 Pounds.

Warranty: 3 Years. Fuel Type: Diesel. Starting Watts/Running Watts (Diesel): 30kW / 30kW. Voltage: 277/480 (3-Phase). Start Type: Automatic. Engline Cooling: Liquid Cooled. Transfer Switch Included: No. Weight: 1865 Pounds. Warranty: 5 Years.

Fuel Type: Diesel. Starting Watts/Running Watts (Diesel): 48kW / 48kW. Voltage: 120/240. Start Type: Automatic. Engline Cooling: Liquid Cooled.

Transfer Switch Included: No. Weight: 2267 Pounds. Warranty: 5 Years. Generac’s 10,000-Watt Guardian Series generators are reliable backup standby generators to keep your family in comfort during a power outage.

As soon as the power goes, the generator power will kick in just less than 10 seconds. The high-power OHVI engine works on natural gas and also on liquid propane; directly connect it to the existing supply of gas and be free from the hassle of frequent refueling.

  • The comfort is increased even more with its ability to change the fuel without using any kind of tool.
  • The engine is designed while keeping convenience in mind, and it can handle any kind of rough and longtime usage very easily.
  • It will provide you with reliable power and will require very little maintenance compared to any of its competition.
  • With the use of a 16 circuit transfer switch, easily power all your equipment in your house without laying any extension cords.
  • It is similar to a home air conditioning unit, and it just sits silently outside your house on a mounting pad and keeps your appliances running.
  • The system comes equipped with a circuit breaker that protects your home appliances as well as the generator from any kind of fault.
  • The LED light says whether the generator is running or not.
  • Keep an eye on all generator parameters while being anywhere in the world.
You will just need access to a computer or tablet and an internet connection, and this feature is popular as a Mobile Link Remote Monitoring System.
Now, don’t hesitate to attach your small electronics to outlets when this generator is supplying the power because, with the THD rating of 5%, they all will safely get recharged. The generator’s working won’t get affected a bit no matter the extreme temperatures or heavy rain.

16-circuit transfer switch. An efficient OHVI engine requires less maintenance. 5- year warranty. Can only supply small houses. Transfer switch needs to be purchased separately. This is a top-class model from Generac, and it can power the whole house when the power goes out.

It will keep your fridge, AC, heater, and TVs running, and it will keep you in comfort and gives you the feeling of safety in power outages. The G-force OHVI engine, which will require very little maintenance compared to other standard generators, supplies 22 kW of power on propane and 19.5 kW of power when natural gas is used.

There will not be any problems regarding refueling, as you can connect the generator directly with the existing gas supply. That means a continuous flow of power in a matter of just 10 seconds when the light goes out. When it comes to recharging sensitive electronics then standby generators are not the ideal choice but with this generator serving as a backup, you don’t have to worry about the safety of your electronics.

Generac is known for its TruePower technology, with which this generator is also equipped. It ensures that the power output of the generator won’t have a THD rating of more than 5%.

With this THD rating, you can confidently supply the power to your electronics. Is it hot out there, or is it water cold?

  • Whatever the weather condition, this standby generator with its tough, durable, and corrosion-resistant aluminum enclosure will endure everything and will supply power reliably for upcoming years.
  • Another benefit of this generator is its very quiet working.
  • With a noise level of just 67 dB, it will keep all your appliances running without disturbing your neighbors or your daily chores.
  • There is also a Quiet Self-Test Mode, and this test ensures that your generator is running properly.
  • It will run at less RPM during the self-test.
The test time can range from five to twelve minutes, and it also makes the generator more fuel-efficient.
With the 5-years of warranty from the manufacturer, you won’t have to worry about the well-being of your standby generator. Provides clean power. Tough and durable construction. An LCD to show the parameters. Quiet operation. 5-year warranty.

Generac generators are known for their innovative features, and there is no reason to keep this generator from it. Its best-in-class TruePower Technology ensures the purity of generated power, and it won’t have more than 5% THD, which makes it safe to charge sensitive electronics like mobiles, laptops, etc.

If you don’t have a transfer switch installed at your home, there is no need to buy it separately. You can safely power your equipment with the 50-A, 8-circuit transfer switch, which is provided with the generator. The long life of the standby generator is ensured no matter the weather condition with its galvanized steel casing.

All components are enclosed inside, so it also serves as a noise-blocking medium. You will hear only 69 dB of noise coming out of it when the powerful 426cc engine is running.

Another cool thing about this generator is its Mobile Link cellular remote monitoring system. This feature lets you keep an eye on various generator parameters from your computer, tablet, or smartphone. This standby generator can automatically start supplying power in under 10 seconds when the power goes out and has a warranty of 3-years.

So, be worry-free. Automatic starting. Low noise level. Comes with a transfer switch. Mobile link remote monitoring. Not enough power for large homes. This is the generator that you will need if you want to power almost all the appliances of a large house.

  • The ability of this standby generator to restore the 30 kW power in a matter of seconds makes it highly reliable in emergencies.
  • The source of this high power is a 2400cc diesel engine.
  • It should be obvious that the generator with this power rating will be noisy, but you will be surprised to hear that it produces a noise level of just 70 dB.
  • It is a moderate level if you consider the power it supplies.
  • Note that this is a liquid-cooled generator, and you will need to pour in the water to keep the engine cool.
  • Always stay updated about the condition of the generator with the dual-line LCD, which shows the information very accurately even in the dark.
  • To keep tabs on the operation of the generator, it comes with the Quiet-test and weekly self-test mode.
The generator will test itself by running for a few minutes, and during these five to twelve minutes, it will run quite at lower RPM, saving you some fuel.
There are very few chances of it happening, but for some or other reason, if there is a fuel leak, then the generator automatically shuts itself off and gives out an alarm notifying that there is something wrong with it. There is a breaker to keep the equipment and generator safe from overloads or a heavy power surge.

Works only on diesel. This is the most powerful and largest standby generator on our list. With its ability to provide the power of 48 kW, you can power almost everything that works on electricity in your home.

If you have a central AC, Heater, or any other high-power-consuming appliance, this standby generator will power it. Even if you want to run more than one power-demanding appliance, then also you don’t need to worry. The generator is equipped with a fuel leak sensor that senses if there is a fuel leak.

And if the sensor detects fuel leakage, it will give out a signal notifying anyone nearby that there is some problem with the unit. Moreover, for safety reasons, it will automatically shut off.

Moving on, to keep an eye on the status and the breaker position, there is a transparent window on the casing. With the aluminum casing, there won’t be any need to use any coverage or outer protection.

The casing is enough to keep generator parts safe. Another thing worth mentioning about this generator is its noise level.

  • The generator produces a 70 dB which is nothing compared to the power.
  • You can safely conclude that the low noise level of the generator is a result of blocking from an aluminum casing.
  • The generator engine is powered by diesel, and it will instantly kick in just a few seconds as soon as the grid power goes out.
  • Not only that, but the generator also comes with the auto-shutdown.
  • You won’t have to turn it off when the power from the grid comes back, and it will turn itself off.
  • For the sake of user convenience, there is an hour meter attached which shows the time elapsed after the start.

Compare Products

This is the best standby generator if you want to power all your appliances at once. The quality of the unit is assured with the 5-year limited warranty from the manufacturer.

The noise level is just 70 dB. Sturdy aluminum casing. Automatic shut-off. Fuel leak alarm. Double-walled fuel tank. No transfer switch is provided. You can’t imagine your day without electricity in these modern days.

If the power outage stays for long, it might affect your work if you are working from home.

Fuel Options for Standby Generators

It ends the entertainment from electronic devices and robs you of your comfort. The power outage can be worse if it doesn’t go away for days or weeks. If you want to keep your day going without any, then the standby generator is the solid choice.

You won’t even notice that there is a power outage. A standby generator offers convenience, and you won’t have to connect and start it every time the power goes out and take it off when the power comes back. They have installed devices on your premise that will automatically start powering your devices when the power goes out, and they will turn themselves off when the power comes back.

The transfer switch is the main component for proper automatic function. It detects the power and gives the signal to the generator whether it is time to start or shut off.

And all these things happen in just a matter of seconds, and this makes them highly convenient. A power outage is a common thing if you live in an area where there are frequent natural disasters like a tornado or a hurricane. The power will take a few days to weeks to get restored. If after such kind of natural disaster power comes back in a day, then you are fortunate, and if it doesn’t, then you are not so, but you can be if you have a standby generator.

They provide you safety and peace of mind, but how do they work? A standby generator is a device that will power all your appliances in the house, and it is permanently connected to the electrical circuits of your home through a transfer switch.

Best Standby Generator Reviews of 2022

A generator simply has an engine that uses natural gas or propane, and sometimes for large power output diesel as a fuel to generate electricity. When the engine generates the power, it gets hot, and to cool it down, a pump is provided to circulate the coolant through the engine, which will then flow in the radiator.

A fan will blow the air over the radiator, releasing the heat outside and cooling the coolant.

Final thoughts

The main component for a standby generator is a transfer switch, and it is a smart controller that does the coordination. When the power outage occurs the transfer switch senses the outage and gives the signal to the generator engine to start.

After giving it a few seconds to stabilize, the connection is made with the circuits of the house, which needs to be powered.

How Do Standby Generators Work?

Note this, before making a connection, it disconnects the utility line to prevent the problems arising due to back feeding. The same goes for when the power returns, the transfer switch senses that the power has come back, it will disconnect the generator from home and will connect the utility supply.

After giving some time to the generator for cooling down, it will be turned off. This cycle will repeat in every power outage condition. Some sophisticated transfer switches in the market come with the power management feature to supply the power only to priority circuits when the power goes out.

If two power-consuming appliances are connected, then it will keep one waiting until its turn comes. Portable generators and standby generators are significantly different from each other. One obvious difference resides in their name; a portable generator can be carried along wherever you require power, whether it is a campsite or a job site.

On the other hand, the standby generators are made to sit in one place, and they don’t have any handles or wheels to move them. They are hardwired to the electric circuits of the house. A portable generator will be small and will have a small engine that can supply power for a brief period of time, and they are suitable to run only essentials during a power outage.

What Size Standby Generator is Best for My House?

The standby generator is designed to power for an extended period of time and can supply power to almost all house appliances. Another difference is that you will have to manually turn on and turn off the portable generator when you need power, and they need to be regularly checked for any faults and need to be periodically maintained to ensure long life.

But if we talk about the standby generators, then because they are connected forever to the electrical circuits of the house, they sense the power condition on the utility line.

What is a Standby Generator?

If the power goes out, then the standby generator automatically starts, and when it comes back, the generator will automatically shut off.

Moreover, automatic generators run the automatic test on them and notify the user if there is anything wrong with the system, so no manual checkup is required. When it comes to the portable generator, then they need to be run outside. If used inside, then the accumulation of the exhaust from these generators can turn out to be fatal if breathed in.

If they are outside, there is a risk of theft.

But for the standby generators, due to their heavyweight, they don’t appeal to thieves much. Other than that, if you want to run the portable generator as a backup generator, then you will have to first accumulate the fuel, and the fuel tends to evaporate.

This doesn’t always make it possible to have fresh fuel. While for the standby generator, you can directly connect them with the existing propane or natural gas supply to your house, and it will be ready anytime you want it to work.

Related Articles:. It is important to determine the size of a generator before making any decisions.

If the generator can’t supply enough power, then a few of your appliances won’t start when you need them. If it is too large, then the initial investment and the maintenance cost will be high. The generator can be small or large, their price increases proportionally to their size and the features with which they are equipped.

If you only want to power the essentials during a power outage, then you can go for a small generator; it will be light on the pocket.

Generally, the size of standby generators is defined by their power output rating in kilowatts.

If you want to get a fairly good idea about the size of the generator you are going to need, then first calculate the number of appliances you will be running with this generator in a power outage condition.

FAQs

It can be a refrigerator, lights, a TV maybe, an oven, etc. Once you decide on the appliances you want to power up, keep the margin of 15% for future needs, and if such a need arises, then you can do so without any compromise on existing running appliances.

Once that is done, note down the wattage requirement of each appliance. You will mostly find it on the data label of the appliances. If not, and if the voltage and amperage are given, then by multiplying them, you will get the wattage.After that, sum up all the wattage of each appliance that you chose to power in an outage.

Whatever the result of that summation is, the generator should have a minimum power rating to run all the appliances satisfactorily. When making a final decision, always choose a generator of which power rating is 25% more than your actual requirement.