Liberty Utilities, operating as The Empire District Electric Company, serves about 165,000 customers across southwest Missouri including Joplin, Branson, Aurora, and Bolivar. Liberty has the highest average residential rates of Missouri's three investor-owned electric utilities (~16.20 cents per kilowatt-hour vs ~13.50 for Ameren and ~11.50 for Evergy), which makes solar economics work better here than on either of the larger utilities. With a three-year phased rate increase approved by the Missouri Public Service Commission in January 2026, those rates are heading higher. Here is what every Liberty Missouri homeowner needs to know about going solar.
Liberty Utilities is the third investor-owned electric utility in Missouri, serving the southwest corner of the state under the legacy Empire District Electric Company brand. Liberty is a subsidiary of Algonquin Power and Utilities Corp., headquartered in Canada, with North American electric and gas distribution operations across 13 US states and one Canadian province.
Liberty Missouri's electric service territory covers most of southwest Missouri including Joplin, Branson, Aurora, Bolivar, Carthage, Webb City, Neosho, Monett, Lebanon, Marshfield, Mount Vernon, and surrounding rural communities. The territory spans Jasper, Newton, McDonald, Barry, Lawrence, Polk, Greene, Christian, Stone, Taney, and adjacent counties in southwest Missouri.
If your home is in southwest Missouri and your electric bill comes from Liberty Utilities (or "The Empire District Electric Company" on older bills), you are on Liberty's Missouri tariff. Solar Assure serves all Liberty Missouri territory. Our existing Joplin solar guide walks through the local context for the largest city in Liberty's Missouri service area.
On January 14, 2026, the Missouri Public Service Commission approved a settlement agreement in Liberty's Missouri electric rate case (originally filed February 26, 2025, replacing a prior November 2024 filing that contained a technical error). The settlement allows Liberty to recover roughly $152 million in infrastructure investment costs over three phases.
Liberty must first meet customer service and billing performance standards before new rates implement, so no specific start date is announced as of April 2026. Once active, rates phase in over three years to ease impact:
Cumulative impact over three years: roughly 11 to 13% on top of Liberty's already-highest-in-Missouri residential rates. The investment funds wind energy generation, distribution reliability upgrades (including converting Joplin's downtown 4 kV system to 12 kV), grid hardening (about 2,300 reinforced poles, 5,100 wildlife guards), new service centers in Aurora and Bolivar, and security upgrades.
For solar customers, this rate increase is a tailwind, not a headwind. Solar locks in your effective cost of electricity for the 25-year design life of the system, while utility rates continue to rise. A homeowner who installs solar on Liberty Missouri in 2026 effectively avoids the 11 to 13% three-year increase on every kilowatt-hour their panels produce. On a typical 9-kilowatt system producing roughly 12,000 kWh per year, that 11 to 13% increase compounds to several hundred dollars in additional annual savings by year three compared to a non-solar home.
Liberty has also separately filed with the Missouri PSC to construct a new natural gas-fueled combustion turbine generating unit at its State Line Power Station in Joplin. If approved, that adds further upward rate pressure beyond the current settlement.
Liberty Utilities Missouri net metering is governed by Missouri's Easy Connection Act (RSMo 386.890), the same statute that applies to Ameren Missouri and Evergy Missouri. The mechanics are nearly identical, but Liberty's tariff has one specific catch worth understanding: the 12-month credit expiration.
Your existing single-direction meter is replaced by a bi-directional meter at no cost to you for residential systems 10 kW DC or smaller. Per RSMo 386.890, Liberty cannot charge any fee unique to net metering customers. The new meter records two separate registers: kilowatt-hours delivered to your home from the grid (kWh delivered) and kilowatt-hours received from your home back to the grid (kWh received).
Each billing cycle, Liberty subtracts your kWh received from your kWh delivered. If you delivered more than you received, the difference rolls forward as a credit on your next month's bill at the full retail rate. If you received more than you delivered, you pay the retail rate for the net difference plus your fixed monthly customer charge.
Per Liberty's Missouri Net Metering Rider, any kilowatt-hour credits remaining 12 months after net metering service began expire and are paid out at the avoided-cost rate, which is significantly lower than retail. Credits also expire if the customer terminates utility service or net metering relationship before the 12-month cycle. This is similar in spirit to Kansas's March 31 reset but timed to your individual net metering anniversary rather than a calendar date. For practical purposes, this means Liberty Missouri solar systems should be sized to roughly match annual consumption rather than oversized to maximize export.
At Liberty's higher residential rate of about 16.2 cents per kilowatt-hour, this same 9-kilowatt system offsets roughly $1,944 per year in electricity costs at current rates, climbing to over $2,150 per year by the third year of the approved rate increase phasing. Compared to the same system on Ameren Missouri (~$1,620 annual offset at 13.5 cents per kWh) or Evergy Missouri (~$1,380 annual offset at 11.5 cents per kWh), Liberty Missouri solar has the strongest base-case savings of any of the three Missouri investor-owned utilities.
Solar Assure handles all Liberty Missouri paperwork on behalf of customers we install for. This is what happens between contract signature and the day your meter starts spinning backwards.
Solar Assure completes the in-person site assessment, finalizes the system design in Aurora Solar (a professional solar design tool), and prepares the application package: project-specific one-line electrical diagram, site plan, equipment specification sheets for inverter and modules, storage device specifications if batteries are included, and the licensed-electrician or licensed-engineer code certification required by the Missouri Easy Connection Act.
The complete Net Metering Application (included in Liberty's Missouri Net Metering Rider on Liberty's central rate page) is uploaded with all supporting documentation. There is no application fee for residential systems. Solar Assure copies the customer on the submission so you have a paper trail.
Liberty reviews residential applications 10 kW DC or smaller within 30 business days. Larger systems take up to 90 days under the Easy Connection Act. Approval is conditional on the system being installed exactly as designed. If the design needs revision, Liberty returns the application with comments. Solar Assure handles any back-and-forth.
With Liberty approval in hand, Solar Assure pulls local building and electrical permits with your city's authority having jurisdiction (AHJ). The physical install is usually completed in a single day. Local AHJ inspection follows within a week or two. We then submit installation photos and equipment confirmation to Liberty.
Liberty performs the post-installation review to verify the installed system matches the approved plans. This usually involves remote review of submitted photos and documentation rather than an in-person visit, similar to Ameren and Evergy procedures.
Liberty schedules a meter exchange. A technician swaps your existing meter for a bi-directional net meter at no cost. Your account is updated to the Net Metering Rider tariff. The customer receives Permission to Operate (PTO), and the system officially begins generating credits. The 12-month credit cycle begins counting from this date.
All three investor-owned electric utilities in Missouri follow the same Easy Connection Act for net metering, but the underlying rates and incentives differ a lot. Here is the side-by-side as of April 2026.
| Topic | Liberty Utilities MO | Ameren Missouri | Evergy Missouri |
|---|---|---|---|
| Service area | Southwest MO (Joplin, Branson) | Eastern MO (St. Louis, Columbia) | Western MO (KCMO, Lees Summit) |
| Customer count | ~165,000 | ~1,200,000 | ~540,000 |
| Avg residential rate | ~$0.162/kWh | ~$0.135/kWh | ~$0.115/kWh average |
| Default rate structure | Flat-rate | Flat-rate (TOU optional) | Time-of-use (mandated since Oct 2023) |
| System cap (residential) | 100 kW DC | 100 kW DC | 100 kW DC |
| Application review | 30 business days (≤10 kW) | 30 business days (≤10 kW) | 30 business days (≤10 kW) |
| Application fee | $0 residential | $0 residential | $0 residential |
| Credit expiration | 12 months · avoided cost | 12 months · avoided cost | Customer billing anniversary |
| Solar rebate | Discontinued Aug 2023 | Discontinued earlier | None |
| Recent rate change | +11-13% over 3 years (settled Jan 2026) | +12% effective June 2025 | +14.9% requested for Jan 2027 |
The headline takeaway: Liberty Missouri customers benefit most from solar in dollar terms because their rates are the highest of the three IOUs. Each kilowatt-hour displaced by solar on Liberty is worth approximately 16.2 cents versus 13.5 cents on Ameren or 11.5 cents on Evergy. Combined with Missouri's strong RSMo 386.890 net metering protections (no application fees, free meter exchange, full retail credit roll-forward), Liberty Missouri solar economics are arguably the strongest in the state for customers who size systems properly to annual consumption.
For other Missouri utility comparisons, see our companion guides: Ameren Missouri Solar Guide and Evergy Missouri Solar Guide. For the underlying statute that governs all three, see Missouri Net Metering Explained: RSMo 386.890.
The free solar cost calculator pulls your roof from satellite, runs Liberty's tariff against your monthly bill, and shows your expected savings, payback, and battery option. About 60 seconds.
josh@solarassure.net