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EFS Energy EFS Energy is a premier solar installer in the Midwest. Helping customers achieve energy independence

We help our customers achieve energy independence by reducing use and generating clean, renewable energy. Specializing in commercial and agricultural solar installations, our team has the experience and skill to design and install a custom system based on each individual customer's needs. Learn how you can reduce your energy expenses, increase efficiency, and reduce waste by contacting us today!

The energy problem is getting bigger.Electricity demand is climbing. AI and data centers are putting new pressure on the...
10/15/2026

The energy problem is getting bigger.

Electricity demand is climbing. AI and data centers are putting new pressure on the grid. Businesses are facing higher energy costs and more uncertainty about what those costs will look like five, ten, or twenty years from now.

Commercial solar can turn unused rooftop or land into an energy-producing asset—and help businesses take more control of one of their biggest operating expenses.

Energy independence isn’t just a sustainability conversation anymore.

It’s a business strategy.

Concerned about Power Spikes? Don't worry, we got you!
10/14/2026

Concerned about Power Spikes? Don't worry, we got you!

Summer energy spikes used to bring uncertainty — until this Illinoi...

☀️ This is the week! ☀️The 2026 Solar Summit is almost here! Join us October 15–16 for two energizing days packed with o...
10/12/2026

☀️ This is the week! ☀️

The 2026 Solar Summit is almost here! Join us October 15–16 for two energizing days packed with opportunities to connect, learn, and celebrate the future of solar.

From dynamic exhibits and exclusive networking to hands-on technical training, inspiring awards, and our annual member meeting, there’s something for everyone in the solar industry.

Don’t miss your chance to be part of it!

📅 October 15–16, 2026

🔗 Learn more & view the full event details:https://moseia.com/wp-content/uploads/2026/07/2026-Solar-Summit-Flyer.pdf

☀️Solar isn't just having a moment — it's becoming a bigger part of America's energy mix. In the first seven months of 2...
10/07/2026

☀️Solar isn't just having a moment — it's becoming a bigger part of America's energy mix. In the first seven months of 2026, solar produced nearly three-quarters as much electricity as coal, according to recent analysis. And with U.S. electricity demand continuing to rise, every source of reliable generation matters.

The takeaway?

The sun isn't sending us a bill. So let's put it to work. 😎🌞 Ready to turn sunshine into a smarter energy strategy?

10/05/2026

☀️ Solar has entered the chat… and it’s bringing POWER.

The U.S. now has enough operating solar capacity to power more than 50 million homes. That’s a lot of sunshine doing a lot of work. And the momentum isn’t slowing down — solar generation is expected to grow significantly in 2026.

Translation? The future is looking pretty bright. 😉 Ready to put the sun to work for your business? Let’s make your energy strategy a little more sun-sational.

Love solar? Join us October 15–16 for an energizing two days at the 2026 Missouri Solar Energy Industries Association's ...
09/30/2026

Love solar? Join us October 15–16 for an energizing two days at the 2026 Missouri Solar Energy Industries Association's Solar Summit!

From dynamic exhibits and exclusive networking opportunities to hands-on technical training, inspiring awards, and the annual member meeting, there’s something for everyone in the solar industry.

Don’t miss the opportunity to connect, learn, and celebrate the future of solar energy.

📅 October 15–16, 2026
🔗 Learn more and view the full event details:https://moseia.com/wp-content/uploads/2026/07/2026-Solar-Summit-Flyer.pdf

09/29/2026

If 2027 is your target year for commercial solar, waiting could cost you valuable time. ⏰☀️

Projects that missed the July 4, 2026 safe harbor face a much shorter runway, with the clock running toward December 31, 2027 for full operation. And there’s more to the timeline than construction. Interconnection reviews, grid capacity, equipment lead times and new sourcing requirements can all impact how quickly a project moves forward.

The best time to start planning your 2027 solar project? Now.

EFS Energy can help you navigate the process from interconnection and equipment procurement to construction and energization.

📩 Ready to get started? Let’s talk.

EFS Energy is a premier solar installer in the Midwest. Helping customers achieve energy independence

What can commercial solar look like in the real world?For Wehmeyer Seed in Mascoutah, Illinois, it looks like approximat...
09/23/2026

What can commercial solar look like in the real world?

For Wehmeyer Seed in Mascoutah, Illinois, it looks like approximately $30,000 in annual energy savings.

Their 520 kW rooftop solar array is one example of how businesses can turn unused roof space into a long-term energy asset. And that's what we love about commercial solar: it's not just about generating clean energy. It's about creating measurable value for the businesses investing in it.

Your roof could be working harder for your business.
Learn More >>

Mascoutah, IL- 520 kW rooftop array $30k/year in energy savings

For businesses, energy costs go beyond the monthly utility bill. Fluctuating electricity rates, demand charges and the n...
09/22/2026

For businesses, energy costs go beyond the monthly utility bill. Fluctuating electricity rates, demand charges and the need for greater operational efficiency are making energy management an increasingly important consideration.

Solar can help businesses generate their own electricity and reduce reliance on the grid. But what happens when the sun isn’t shining? That’s where battery storage comes in. Read more in our latest September blog:

For businesses, energy costs go beyond the monthly utility bill. Fluctuating electricity rates, demand charges and the need for greater operational efficiency are making energy management an increasingly important consideration. Solar can help businesses generate their own electricity and reduce rel...

Did you know⁉⁉The 2026–27 Illinois Shines program year opened with 1,000 MW of new capacity statewide, including a dedic...
09/17/2026

Did you know⁉⁉

The 2026–27 Illinois Shines program year opened with 1,000 MW of new capacity statewide, including a dedicated 180 MW block for Large DG projects—the category where many commercial solar systems fall.

For Illinois businesses considering solar, understanding program capacity and incentive opportunities is an important part of planning the project.

And with incentive programs evolving, timing matters. Have questions about how Illinois Shines could impact your project? We're here to help.

Address

3407 S Jefferson Avenue
St. Louis, MO
63118

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+13147715131

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