Commercial solar demand charges in Denver deserve a closer look in 2026. The Colorado PUC approved new Xcel Energy electric rates in August 2026. Customers will see bill changes that depend on their rate schedule, energy use, and demand profile.
For Denver businesses on demand-based rate schedules, total energy use is only part of the bill. Peak demand during short measurement intervals can also add a meaningful cost. This is why understanding when the building reaches its highest load matters before sizing solar or storage.
For businesses on Xcel’s Schedule SG, the bill includes both energy charges and demand charges. Total kilowatt-hour use still matters. The facility’s peak demand can also add a significant cost depending on the load profile and tariff rules.
Denver businesses also need to consider Energize Denver. For some buildings, meeting those goals may involve efficiency upgrades, electrification, renewable energy, or a combination of strategies. If electrification adds new electric loads, the building’s demand profile may change too.
Commercial Solar Demand Charges in Denver: Why the Math Changed in 2026
Xcel Energy filed a Colorado electric rate case in November 2025 seeking approximately $356 million in additional annual revenue.
In August 2026, the Colorado Public Utilities Commission approved a substantially smaller increase of about $157 million, excluding rider roll-ins.
Commercial electric bills can include several different components. The structure depends on the customer’s rate schedule, service characteristics, energy consumption, and demand. For facilities billed under demand-based schedules, peak demand remains an important part of understanding the bill.
The practical lesson is simple: do not evaluate commercial solar from a single cents-per-kWh number. The whole tariff matters.
How Energize Denver Can Change a Building’s Electric Load
Owners have different ways to improve building performance. Depending on the property, that may include efficiency work, renewable energy, equipment upgrades, operational changes, or electrification.
Electrification matters to demand planning because replacing fossil-fuel equipment with electric systems can add substantial electric load.
That does not automatically mean demand charges will increase. The effect depends on equipment size, controls, operating schedules, the existing load profile, and the building’s Xcel rate schedule.
A heat pump that operates steadily can affect the meter differently from equipment that creates a large coincident peak. EV charging, electric water heating, refrigeration, and other new loads can also reshape demand.
That is why Energize Denver planning and electrical-load planning should not happen in separate conversations.
Solar and storage can be part of that strategy. They should be evaluated against the building’s actual performance needs rather than treated as automatic compliance solutions.
Energize Denver Adds a Solar Compliance Pathway for Smaller Buildings
Energize Denver also reaches existing commercial buildings between 5,000 and 24,999 square feet through a one-time prescriptive pathway. On-site renewable energy is one of the listed ways to comply, and LED lighting upgrades are another.
Deadlines are staggered by building size. The largest buildings in that range face the first deadline at the end of 2026, and smaller buildings follow in later years. Requirements have changed since the program began, so owners should confirm what currently applies to their building.
For a commercial property considering solar, the timing matters. Solar can be both an energy investment and a compliance strategy, depending on the building. Requirements and target years vary by property, and owners can check a specific building with Energize Denver’s building lookup tool.
How Solar and Battery Storage Can Help Manage Peak Demand
On applicable Xcel commercial rate schedules, billing demand can incorporate measured demand over 15-minute intervals. It is subject to the specific billing-demand provisions of the customer’s tariff. Solar can reduce that pull during sunny hours. It does nothing for a spike after sunset.
Battery storage adds another tool.
With appropriate sizing and controls, a battery can discharge during targeted periods to reduce the amount of power the facility draws from the grid. That practice is often called peak shaving.
Find the Cause Before You Buy Equipment
Before evaluating peak-demand solutions, first identify what creates the peak.
Monthly utility bills show useful totals, but interval data can reveal when demand actually rises.
A short spike may come from several systems operating at the same time. In other cases, the problem may be operational rather than a lack of electrical capacity.
That distinction matters.
Solar may help if the peak overlaps with production. A battery may help if targeted discharge can reduce the grid draw. Load controls may help if equipment can be staggered without affecting operations.
Sometimes the best answer is a combination.
Know the Rate Schedule Before Modeling Savings
Xcel Energy uses different rate schedules for commercial and industrial customers.
The applicable schedule depends on factors such as service voltage, load characteristics, metering, and tariff eligibility.
Some commercial rate structures place greater emphasis on energy consumption. General-service schedules can include substantial demand-related components. Before modeling solar or battery economics, identify the rate schedule shown on the utility bill. Understand how that tariff calculates billing demand.
If another rate schedule may be applicable, eligibility and economics should be evaluated under Xcel’s current tariff rules.
The rate schedule is part of the design input.
How Much Can Commercial Solar Save on Demand Charges in Denver?
There is no useful generic percentage. Anyone promising a fixed percentage of demand-charge savings without reviewing your interval data is guessing.
Two Denver businesses can use the same amount of electricity in a month and have very different demand profiles.
One may have a broad daytime load that overlaps well with solar production. Another may create a short evening peak that solar alone barely touches.
A third may have recurring peaks that could potentially be managed with storage or load controls.
Commercial solar energy savings in Denver should be modeled from the building’s actual rate structure and operating pattern.
FAQ: Commercial Solar Demand Charges in Denver
What exactly is a demand charge?
A demand charge is a utility-bill component based on the rate at which a facility draws electricity during defined measurement periods. On applicable commercial tariffs, measured peak demand can influence the monthly bill separately from total kilowatt-hour consumption.
Does solar alone eliminate my demand charge?
Not necessarily. Solar can reduce grid demand when production overlaps with the building’s peak. If the highest demand occurs outside strong solar-production periods, storage, load management, or operational changes may be needed.
Can battery storage reduce commercial demand charges?
It can in the right situation. A properly sized and controlled battery can discharge during targeted high-demand periods and reduce grid demand. The financial value depends on the rate schedule, load profile, battery size, control strategy, and operating pattern.
Is Energize Denver going to affect my electric bill even if I do not install solar?
It can. Energy-efficiency projects or electrification undertaken as part of a building-performance strategy can change electricity consumption and peak demand. The final bill impact depends on the equipment, controls, operating schedule, existing load profile, and utility rate structure.
How do I know which Xcel rate schedule my business is on?
Check your monthly bill or call Xcel’s Business Solutions Center directly. Confirming this before you size a solar system can change the numbers significantly.
Find Out What’s Driving Your Demand Charge
Is your Denver property managing demand charges, Energize Denver requirements, or both? ARE Solar approaches commercial energy planning around the building’s actual rate structure, load profile, and operating needs.
Bring us your utility information and, when available, interval-demand data. We can evaluate how solar production overlaps with facility demand and whether storage or load management deserves a closer look.
Contact ARE Solar to start with the building’s numbers, then design around what they actually show
