The Pros and Cons of Going Off-Grid with Solar

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Deciding to get solar energy is a big choice, but it’s more than just determining whether you want to get solar panels installed on top of your home. Another decision you need to make is how you want to be connected to the local power grid, or whether you want to be connected at all. Solar energy systems come in three options:

Today we’re going to explore some of the pros and cons of having an off-grid system.

What is an Off-Grid System?

An off-grid system is a renewable solar energy system that generates energy from solar panels during the day and stores that energy in battery backups for use at a later time. These systems are not connected to the local power grid, which means that the only available power you have is what you can generate from the panels and store in one or more batteries.

The Pros

There are plenty of reasons to consider going off-grid with your solar:

  • Savings – cutting ties with the local power company means that you will never have to pay a monthly power bill again, because all of your energy will come from a renewable source. The average power bill for homes in the mountain west region was $96.20 in 2018, so that can add up to annual savings of $1,150 or more. Over the 20- to 25-year life of the solar panelsthat’s a savings of $23,000 to $29,000 without even taking into account higher electricity costs in the future (which is basically a guarantee).
  • Environmental benefits – using entirely renewable energy for your power needs means a lower carbon footprint.
  • No blackouts– all of your energy is stored in the battery or batteries attached to your system, so you can draw on it whenever you need it—during a major winter storm, on hot summer days when the power grid is overloaded, or anytime in between. You won’t be at the mercy of the local power company.
  • Building locations – off-grid solar systems are ideal for homes in areas where there is no current connection to a local power grid, such as a cabin up in the mountains or a home that is off the beaten path. Going off-grid allows you to build without the need to pay for power lines out to the house.

The Cons

While there are benefits to being off-grid, there are also some drawbacks:

  • Cost – getting an off-grid power system that is large enough to support all your power needs can be costly because it requires one or more backup batteries, depending on the size of your home and your power usage.
  • No emergency power – if you run out of power or if something goes wrong with your battery storage in an off-grid system, you won’t have any backup because you’re not tied to the local power company at all.

To find out if an off-grid system is the best choice for you, or if there is a better option, talk to Intermountain Wind and Solar today.

Frequently Asked Questions

What are the upfront costs of installing an off-grid solar system in the Intermountain West?

Off-grid solar systems in Utah typically cost between $2.50 and $3.00 per watt installed. A 10 kW array plus a 20 kWh battery bank runs about $35,000–$45,000 before incentives. Intermountain Wind & Solar’s best cost-per-watt pricing and in-house permitting can reduce total expenses by up to 10% compared to market averages.

How long does it take to recoup the investment on an off-grid solar setup?

Customers recover 100% of their off-grid system cost in 8–12 years based on average Utah electricity rates of $0.13 / kWh. Intermountain Wind & Solar’s bulk purchase discounts and federal tax credits can shorten ROI by 6–18 months. After payback, most homeowners see net savings of $1,500–$2,000 annually.

What maintenance is required for an off-grid solar and battery system?

Off-grid systems require biannual panel cleaning and annual battery health checks. Intermountain Wind & Solar’s full-time technicians perform these services in-house, inspecting wiring, inverter performance, and state-of-charge levels. Proper maintenance preserves 90% of capacity over 10 years and prevents 70% of system faults.

How do I determine the right battery storage size for my off-grid home?

Battery size depends on average daily usage; most Idaho and Wyoming homes use 25–30 kWh daily. For two days of autonomy, a 60 kWh battery bank is recommended. Intermountain Wind & Solar analyzes your historic electricity bills and local sun hours to tailor capacity, ensuring 99% uptime during cloudy periods.

Can I integrate EV charging and roof replacement with my off-grid solar project?

Yes. Intermountain Wind & Solar offers a complete ecosystem—solar panels, Tesla or Enphase batteries, Level 2 EV chargers, and roof replacements—under one permit and warranty. Bundle installations to access up to 15% bulk-purchase discounts and streamline paperwork through our in-house engineering team.

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