All Solar LLC is a dedicated solar contractor based at 927 Connie Street in Casper, Wyoming, with Riley Kennedy serving as administrator of the business. The company began operations on November 19, 2018, and was formally incorporated as an LLC on April 11, 2023. Across the seven years it has been working in the Casper trade area, All Solar has built its practice around custom residential and commercial photovoltaic installations, battery storage, and an ongoing service line covering solar panel cleaning, repair, and system maintenance for previously installed arrays.
What earned All Solar the top ranking in Wyoming is the cleanest verified profile in the state. The company holds a perfect 5.0-star Google rating across 116 reviews, became BBB-accredited on March 7, 2024, and carries an A+ rating with no complaints reported on its BBB profile. In a market the size of Wyoming, that combination of perfect satisfaction scores and clean third-party records is genuinely difficult to assemble, and our research team weighed it heavily.
All Solar's design and installation work is shaped by the realities of the High Plains. Wyoming systems have to perform under heavy snow loads, sustained high winds that routinely exceed what coastal installers ever encounter, dramatic diurnal temperature swings, and a solar production curve that compresses meaningful generation into the long-day summer months. The company's installation practices, racking selections, and battery sizing recommendations are built around those conditions rather than imported from a national playbook. Tesla inverter platforms are part of their equipment mix, and the team handles full-scope work from site assessment through utility interconnection. Cash and loan financing options are offered to homeowners and commercial buyers, and the team is positioned to handle both new installations and the maintenance work that older systems in the region increasingly need.
Prospective customers should expect a small-team experience rather than a national-installer sales process. For Wyoming buyers, that local concentration is generally the point: All Solar's published service hours, single Casper address, and direct ownership model translate into faster decisions and tighter accountability on warranty work.
With a composite score of 80.0 out of 100, All Solar stands as our top-ranked solar company in Wyoming for 2026.
“We had solar panels installed. We knew of any wait times with permitting permissions. Install was fast efficient. Worked around the weather. Gave updates when needed. Everything went smoothly. Would...”
Christine E.
“Our solar panel installation with All Solar went very well! It takes time to get through all the steps but they were really good about keeping us informed of how things were going by email and the...”
Justin P.
“This was a smoother and easier that expected experience with them, they had a rough spot to install for us and made the install look great and cleaned up our land and relandscaped better than it was...”
Matt S.
“Everyone I interacted with at All Solar was knowledgeable and engaged in getting our project across the finish line. Brody thoroughly explained the process from the beginning. It took several visits...”
Joe G.
“It is refreshing to write a review about a company that exceeds all of this customer's expectations. The All Solar salesperson came into our home and explained the advantages of having solar panels...”
Kalib W.
“Patrick (co-owner), Nate (sales), and Erik(contractor?) and the installers were all fantastic from start to finish. Everything was completed ahead of schedule from install, to the power company...”
Melisa N.
“All Solar was a great company to work with to set up our solar system. They communicated every step of the process. The process went smoothly. I would recommend them to anyone looking to add solar to...”
Nathan B.
“What a great company to work with! Sebastian provided a very clear, detailed explanation of how the system and financing works, helped design a system that would cover our power needs (with a little...”
The Solar Guys - Northeastern Wyoming, LLC is a dedicated solar installation and electrical design firm based at 501 Weatherby Court in Gillette, Wyoming. The company was incorporated on March 31, 2022, and is owned and operated by Devon Brown. Despite being one of the younger entrants in the state's small solar market, the company has built a focused practice around residential, commercial, and industrial photovoltaic work in northeastern Wyoming and the surrounding plains.
What earned The Solar Guys the second-ranked position in Wyoming is the combination of a perfect 5.0-star Google rating across 54 reviews and a documented project pipeline that runs well beyond pure installation. By the company's own accounting, the team has completed more than 70 installations and engineered over 100 design packages since opening in 2022, which translates into meaningful in-house engineering depth for an installer of this size. The Solar Guys carries an A+ rating with the Better Business Bureau, where its file was opened in November 2023.
The service footprint is one of the broader ones our research team mapped in Wyoming. The company services Gillette, Casper, Cheyenne, Crook County, and Weston County directly, with engineering and plan-set work extending into Nebraska, Utah, South Dakota, and North Dakota. That cross-border engineering work — rafter analysis, permit packets, electrical load calculations, and battery wall-mount letters — gives them a useful secondary revenue line and exposes the team to a wider range of utility interconnection environments than most Wyoming-only installers ever see.
On equipment, The Solar Guys works with Enphase microinverter platforms, EG4 battery and inverter products, APsystems microinverters, and Q-Cells modules, with installations backed by a 25-year performance warranty. The company markets competitive pricing starting below $2.75 per watt and reports completing most projects in roughly four weeks from contract.
Prospective customers should treat published pricing claims as a starting point and confirm full system economics during their own proposal review. For Gillette-area homeowners and operators looking for an installer that handles both the photovoltaic work and the engineering documentation in-house, the structure of The Solar Guys is unusually well-matched to the small but growing northeastern Wyoming market.
With a composite score of 76.0 out of 100, The Solar Guys - Northeastern Wyoming holds the second-ranked position in Wyoming for 2026.
Greystone Electric & Solar is a dual-trade electrical and solar contractor based in Sheridan, Wyoming, operating across the northern half of the state. The company markets itself across five practice areas — residential, commercial, solar, agricultural, and industrial — and its stated mission is to be the leading provider of comprehensive electrical services and renewable energy solutions in the Sheridan region. That structure is the central feature of how the business is built: solar is a line item inside a full-scope electrical contracting practice rather than the only thing the company does.
What earned Greystone the third-ranked position in Wyoming is a clean verified-review profile in a small but watchful market. The company holds a perfect 5.0-star Google rating across 51 reviews and carries a 5.0 overall rating on HomeAdvisor, where it offers free project estimates. Customers in regional Sheridan-area Facebook communities have specifically praised the responsiveness of the electrical and solar work, which matters in a town where word of mouth still carries most of the buying decision.
The combination of an electrical contracting license and a solar practice under one roof is genuinely useful in Wyoming's market structure. Many residential and agricultural solar projects in the Powder River Basin involve significant service entrance upgrades, new meter bases, three-phase considerations for irrigation pivots, or panel relocations to accommodate the inverter and battery hardware. A contractor who can handle the entire electrical scope without subcontracting compresses the project timeline and reduces the coordination risk that plagues solar-only installers operating in rural counties.
Prospective customers should ask Greystone directly about specific module and inverter brands, battery options, and warranty structures, as the company has not published a detailed equipment catalog or financing partner list on its public website. For Sheridan-area homeowners and ag operators evaluating a smaller installer that brings electrical depth alongside the photovoltaic work, Greystone's combination of perfect review scores and dual-trade licensing is a credible starting point for a quote.
With a composite score of 72.0 out of 100, Greystone Electric & Solar holds the third-ranked position in Wyoming for 2026.
Net metering at retail rate|Property tax exemption for solar (3 years)|No state solar tax credit|No sales tax exemption for solar|Limited state-level incentives
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*Companies displaying 15 or more years in business are typically established electrical, roofing, or general contracting firms that expanded into solar installation in more recent years. The years shown may reflect the age of the parent organization or a strategic partner, not necessarily the solar division itself. This distinction is worth considering when comparing to dedicated solar installers, as purpose-built solar companies may offer more specialized expertise despite a shorter operating history.
