Historically, residential solar adoption in Maryland was driven by projected long-term savings. Solar production costs were fixed or escalated at predictable rates, while utility rates increased gradually over time.

In recent years, that dynamic has shifted.

Average residential electricity rates in Maryland have moved from approximately $0.12 per kWh in 2021 to approximately $0.24 per kWh in 2026, with certain utility territories experiencing more pronounced adjustments. This rate movement has compressed the gap between projection and immediate impact.

For many homeowners, solar is no longer evaluated solely as a long-term hedge against future rate increases. It is increasingly evaluated as a mechanism for reducing current monthly energy costs while stabilizing future exposure.

That shift has accelerated adoption across the state – this is why you’re seeing more solar spring up.

Another simple way to understand why Maryland homeowners have been adopting solar is analyzing current energy marketplace conditions. If we’re trying to keep things simple, we can sum things up in a simple supply and demand scenario.

Electricity prices in Maryland, like anything else, are largely driven by supply and demand.

On the demand side, we are using more power than ever. Population growth, new housing construction, electric vehicle chargers, and large energy users like data centers are all increasing the amount of electricity the grid has to deliver every single day. As Maryland’s economy grows and more things run on electricity instead of gas, total demand continues to rise.

One of the biggest reasons electricity demand in Maryland and the broader DMV region is growing is simply that we are using more of it in more places. Population growth and new construction are part of the picture, but two especially dramatic drivers are electrification and the rapid rise of data center development.

Electric vehicles, heat pumps, electric appliances, and similar technologies are replacing gasoline and gas-powered equipment across homes, workplaces, and industries. This shift is good for decarbonization, but it means more electricity is used to power daily life than ever before.

At the same time, companies are building large computing facilities — often called data centers — to support cloud services, internet activity, artificial intelligence, and digital storage. These facilities house thousands of servers that run complex computing tasks around the clock. Data centers use a tremendous amount of electricity — far more than the average home — because computers and the cooling systems that keep them from overheating must operate continuously. A typical AI-oriented data center can use as much power in a year as tens of thousands of homes, and larger ones under construction are expected to use as much electricity as millions of households combined.

On the supply side, the equation is getting tighter. Several coal and older power plants have been retired, and building new large scale generation or transmission infrastructure takes years. Utilities also have to meet Maryland’s Renewable Portfolio Standard, which requires more clean energy in the mix. While that transition is important, it adds complexity and cost to the system. At the same time, infrastructure and transmission constraints in certain areas can limit how much power can move where it is needed most.

When demand rises faster than supply can be added or delivered, prices tend to increase. Utilities purchase electricity in wholesale markets and pass those costs through to customers. As generation becomes more constrained and compliance requirements tighten, the cost of serving each home can rise.

That is where distributed solar changes the math. When a homeowner produces power on their own roof, they reduce the amount of electricity they need to buy from the utility at the full retail rate. Local solar also reduces strain on transmission lines and helps contribute to the state’s clean energy goals. In a tightening supply environment, generating your own power can provide stability against broader market price increases