How many days can a standby generator run continuously?

• <div><p>The <a href="https://www.angi.com/articles/how-long-can-whole-house-generator-run-continuously.htm">amount of time a standby generator can run continuously</a> is around <b>3,000 hours</b> on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.</p></div>

What size generator do I need for my house?

• <div><p><a href="https://www.angi.com/articles/what-size-generator-do-i-need.htm">Generator size requirements</a> vary wildly among properties, but typical generator sizes are listed below based on home square footage:</p><ul><li><p>1,000 sq ft: 6–9 kW</p></li><li><p>1,500 sq ft: 7–10 kW</p></li><li><p>2,000 sq ft: 10–14kW</p></li><li><p>2,500 sq ft: 12–16kW</p></li><li><p>3,000 sq ft: 16–20kW+</p></li></ul><p>Unfortunately, home square footage isn’t always a good indicator of generator size requirements. Instead, you should call in a professional to discuss which items in your home you’d like to run via your generator. They can calculate peak and average consumption for those items and then size your generator appropriately for optimal performance.</p></div>

Is it better to repair or replace a malfunctioning generator?

• <div><p>It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around <b>$300</b> on average, while <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">installing a new whole-house generator costs</a> around <b>$5,000 </b>on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.</p></div>

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Q: How much does it cost to install a generator?

• <div><p>The typical <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">cost of a home generator</a> is around <b>$5,000</b>, but prices range from <b>$400 up to $13,000</b>, depending on a few factors. The most significant cost factor is the generator size, as larger generators that can support more square footage usually cost more. You can install an emergency backup generator for between <b>$500 and $2,000</b> or a partial-home generator for between <b>$2,000 and $6,500</b>. Whole-home generators usually total between <b>$5,000 and $13,000</b>, with some models climbing as high as <b>$18,000</b>.</p></div>

Q: Is it better to repair or replace a malfunctioning generator?

• <div><p>It&rsquo;s usually better to repair your generator if it isn&rsquo;t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around <b>$300</b> on average, while <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">installing a new whole-house generator costs</a> around <b>$5,000 </b>on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.</p></div>

Q: How long does it take to set up utilities?

• <div><p>Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.</p></div>

There are 9 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Stevenson, MD

*The Angi rating for Generator Install companies in Stevenson, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Stevenson, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on October 06, 2025

Reviewed in April 2025
The Electrician Larry Hendrickson, upgraded the electronics in our entire home. With the upgrade we are able to not only use multiple major appliances at once but able to use the USB to charge our devices on every floor. With this upgrade we were able to use a stationary generator in our back...
LARRY HENDRICKSON ELECTRIC, LLC
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Reviewed in December 2024
Boyland Service Technicians are knowledgeable, through, and professional. Their generator assessments have insured that we always have successful back up power experiences which are crucial since we live in the country.
Boyland Electric Inc
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Reviewed in September 2014
Vic and James were extremely efficient, they explained everything, and they couldn't have been more pleasant. If only all service work were of this quality.
Murphy Family Electric
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Reviewed in October 2013
I contacted Arundel and dealt with John Greer; a real professional. The whole experience was thoroughly done and every detail was attended to and communicated ahead of time . The installation crew was both polite and assiduous; they left no mess behind after the project was completed. We also...
Arundel Cooling Heating & Electrical Co Inc
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Reviewed in May 2025
BEWARE!! JBI Services is managed by a bunch of frauds and incompetent people. They will sell you unneeded and useless devices and service contracts if you're not extremely careful. DO NOT USE!! They will do everything in their power to drum up additional business for themselves so they can...
JBI Services LLC
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Reviewed in February 2019
Excellent. I have nothing - but good things to say about Wireworx. Chris- the owner is meticulous and efficient. He returns calls quickly and really helps to get to the root of any home electrical issues. I will definitely use Wireworx again- no question.
Wireworx Electric Inc
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Reviewed in August 2022
Excellent! The whole process was explained well, and the installation was very clean and efficient.
Tim Kyle Electric Heating & Cooling
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Reviewed in October 2013
Overall, a very good experience with Tri-Star. The electrical work is second to none. However, I didn't have a good experience with their pluming subcontractor, J&R Plumbing of Millersville. I ended up having to hire AVS plumbing to correct their work. To date our generator system has run...
TriStar Electric
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