Empire Electric Association members heading into a solar decision in 2026 are working with a Four Corners co-op that just absorbed a wholesale rate increase and is raising its fixed monthly charge. The region it serves sits in the sunniest corner of Colorado, so the production side of the equation is strong. The bill side is where the details matter.

This post walks through the Empire Electric Association solar picture in full. It covers who EEA serves, the 2026 rate change, the fixed charge solar cannot offset, how EEA net metering actually values your power, why the buyback rate makes a battery worth it, the Four Corners solar resource, system sizing, and the Colorado incentive stack alongside the 25 percent up front federal incentive.

Empire Electric Association is a member-owned cooperative based in Cortez. It serves Montezuma and Dolores counties in the far southwest corner of Colorado, plus a slice of San Juan County in Utah. That puts Cortez, Dolores, Mancos, Towaoc, Pleasant View, and Dove Creek inside its territory, along with the ranch country and high desert around them.

This is the Four Corners, and the geography is a gift for solar. Cortez sits near 6,200 feet on a high, dry plateau with some of the clearest skies in the state. The combination of altitude, low humidity, and a long sunny season puts this region near the top of Colorado for solar resource. Panels here see strong irradiance most of the year.

EEA buys nearly all of its power from Tri-State Generation and Transmission, the wholesale supplier behind more than 40 member cooperatives across four states. When Tri-State raises its wholesale cost, EEA retail rates follow. That relationship is the backdrop for the 2026 changes, and it is why a co-op in a small county feels the same cost pressure as a big Front Range utility.

Tri-State approved a 2026 budget that carries an average wholesale rate increase near 7.5 percent, effective January 1, 2026. EEA passes those wholesale costs through to its members, so the 2026 bills reflect that hike. The co-op has also been reworking its retail rate structure, with an All Energy rate and a time-of-use option that members can compare.

On the All Energy residential rate, the monthly Grid Access Charge is moving from $38 to $45. That is the fixed part of the bill, and it does not move with how much energy you use. On the time-of-use rate, the on-peak energy price runs near 17 cents per kWh, which is the window where shifting usage off peak does the most good.

For a solar shopper, the message is simple. Confirm which EEA rate you are on, pull a real rate comparison, and model your project on the current 2026 numbers. A rising fixed charge and a higher wholesale cost both push the value of producing your own power higher.

One line on an EEA bill stays put no matter how large your array is. The Grid Access Charge on the All Energy residential rate is $45 a month in 2026, up from $38. It pays for the poles, wires, transformers, and metering that keep power flowing to a spread-out rural service area, and you pay it whether you use 100 kWh or 2,000 kWh.

Solar cannot erase that charge. What solar erases is the energy portion of the bill, the part priced per kWh. So the honest math on EEA looks like this. Your array offsets the energy you use behind the meter at your retail rate, the Grid Access Charge stays, and the surplus you export is bought at the wholesale rate, not the retail rate.

Anyone who promises a zero-dollar bill on a co-op with a $45 fixed charge is selling, not measuring. The real win is cutting the energy charge to near zero and keeping more of your production on your side of the meter.

This is the most important section for any EEA member going solar. EEA does net meter, but the way it values your power depends on where that power goes. Energy your home consumes the moment your panels make it never touches the meter as an export, so it offsets your usage at the full retail rate. That is the high-value kWh.

The surplus is different. When your array makes more than the house is using, that extra energy flows to the grid, and EEA credits it at the avoided-cost wholesale rate. EEA buys excess generation at the trailing 12 month average wholesale energy price, which sits near 3.6 cents per kWh. Once a year, in the spring, EEA trues up your accumulated excess and pays it out at that wholesale rate.

So a kWh you use yourself is worth your retail rate, and a kWh you export is worth about 3.6 cents. That spread is the whole game on EEA. Our guide on how Colorado net metering works for solar homeowners in 2026 walks through the credit mechanics, and the practical takeaway here is to design around self-consumption.

Because exported power earns only about 3.6 cents while used power saves your full retail rate, two design choices drive the economics on EEA. First, size the array to your actual annual use rather than oversizing to bank surplus. A big array that dumps half its production to the grid at 3.6 cents wastes the panels you paid for.

Second, add a battery. A battery stores your midday surplus and releases it in the evening when the house is drawing power and the panels have stopped. Instead of selling that surplus for 3.6 cents and buying it back later at retail, you keep it and use it yourself. On a utility that pays a low buyback rate, a battery turns low-value exports into high-value self-consumption.

The timing sharpens the case. A battery placed in service by December 31, 2026 qualifies for the Colorado 10 percent residential storage credit on form DR-1307. Our whole-home battery backup guide for Colorado covers sizing for outage protection on long rural feeders, and our solar battery installation page covers the equipment.

The Cortez area is excellent solar country, and the numbers back it up. The Four Corners region carries one of the highest solar resource ratings in Colorado, with long, clear, dry days and high-plateau air that lets strong sunlight through. A well-placed array here produces more per installed kilowatt than the same array on much of the Front Range.

The high desert climate helps in another way. Snow loads are lighter than in the mountain co-op territories, and the dry air keeps panels clean and cool enough to run efficiently. South-facing roofs with open exposure do especially well, and ground-mounted arrays on larger Montezuma and Dolores County lots can be tilted for ideal year-round output.

Wind and the occasional hail event still matter, so racking, attachment, and panel ratings need to match the site. The payoff for getting the design right is strong production in a region built for it. Our guide on how to size a solar system for your Colorado home walks through turning that resource into the right system size.

Because EEA pays only wholesale for exports, the right move is to size the array to your real annual use and capture as much of your production behind the meter as you can. Oversizing to chase a permanent surplus does not pay when that surplus sells for 3.6 cents. Rural Four Corners homes often run higher usage than city homes because of well pumps, electric heat, shops, and longer drives that push some households toward an EV.

For most year-round homes around Cortez and Dolores, the sweet spot is an array sized to usage in the 8 to 12 kW range, paired with a battery so midday surplus gets used at home rather than sold at wholesale. Our residential solar installation page covers the equipment and the design process.

The federal residential solar incentive in 2026 is worth roughly 25 percent of the total project cost. The basis is broad. It covers panels, inverters, racking, wiring, labor, permits, and interconnection fees, and battery storage qualifies when it charges primarily from the on-site array. On a $26,000 Cortez solar project the federal incentive is worth about $6,500. On a $38,000 solar plus battery project it lands closer to $9,500.

Three Colorado state layers run alongside it. The sales and use tax exemption removes state tax from the solar equipment and shows up as a missing tax line on your quote. The property tax exemption means the county assessor does not raise your assessment because of the array, and that exemption transfers when you sell the home. The 10 percent residential storage credit on form DR-1307 covers the battery and carries the one hard deadline in the stack.

The storage credit is the most time-sensitive piece. The basis is 10 percent of the battery’s eligible cost, including equipment, sales tax, and freight, and it excludes labor and permit fees. The credit is non-refundable, cannot be carried forward, and expires December 31, 2026. A battery placed in service on January 1, 2027 or later forfeits it entirely. Our Colorado battery storage tax credit guide for 2026 covers the DR-1307 mechanics.

Empire Electric Association solar comes down to a few clear numbers. Power you use yourself offsets your retail rate, power you export earns only about 3.6 cents, and the $45 Grid Access Charge is the part solar cannot touch. Size the array to your usage, keep production on your side of the meter, and add storage to turn low-value exports into high-value self-consumption.

For a homeowner in Cortez, Dolores, or Mancos, the timing is the urgent part. The Colorado 10 percent residential storage credit expires December 31, 2026 and cannot be carried forward. The 25 percent up front federal incentive applies on the full project basis. The window to capture every layer narrows as the year moves toward Q4.