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Delaware residents should prepare for higher air conditioning costs this summer, according to projections from the National Energy Assistance Directors Association. The organization expects electricity costs to rise across South Atlantic states, including Delaware, due to broader energy market realities affecting the region.

Last updated: 2026-04-30

TL;DR: Delaware electricity costs are projected to increase this summer, which will directly impact your air conditioning bills during peak cooling season. With Delmarva Power's current rate at 8.15 cents per kWh, even small increases can add up quickly for households running AC systems throughout the hot months.

Why Delaware Electricity Costs Are Rising

Several factors are driving the expected increase in Delaware's electricity costs this summer. Regional energy market conditions across the PJM Interconnection, which manages Delaware's wholesale electricity grid, are experiencing upward pressure on prices.

The primary drivers include increased demand for electricity during peak summer months when air conditioning usage soars, combined with higher costs for natural gas, which powers many of the region's electricity generation plants. When wholesale electricity prices rise, these costs eventually flow through to consumer bills, whether you're on Delmarva Power's default service or with a competitive supplier.

Delaware's position in the South Atlantic region means it shares similar market dynamics with neighboring states from Maryland down to Florida, all of which are experiencing comparable cost pressures according to the Edison Electric Institute's recent analysis.

How This Affects Your Summer Electric Bill

The rising costs will hit Delaware households hardest during peak air conditioning season, typically from June through September. Air conditioning can account for 50-70% of your summer electricity usage, making even modest rate increases noticeable on your monthly bill.

Currently, Delmarva Power customers pay 8.15 cents per kWh for the supply portion of their electricity service. If you're using 1,500 kWh during a hot summer month (typical for a home with central air conditioning), the supply portion alone costs about $122. A 10-15% increase would add $12-18 to that monthly cost.

The impact varies significantly based on your home's size, insulation quality, and air conditioning efficiency. Older homes with less efficient HVAC systems will see larger bill increases since they consume more electricity to maintain comfortable temperatures.

Understanding Delaware's Electricity Market Structure

Delaware operates in a deregulated electricity market, meaning you can choose your electricity supplier for the commodity portion of your bill. Delmarva Power remains your utility company, delivering electricity through their infrastructure regardless of which supplier you choose.

The Delaware Public Service Commission oversees this market structure, ensuring consumer protections while allowing competition among suppliers like Constellation, Direct Energy, and Verde Energy.

When wholesale electricity costs rise, both Delmarva Power's default service rate and competitive supplier rates tend to increase. However, the timing and magnitude of these increases can vary. Some competitive suppliers offer fixed-rate plans that can protect you from short-term price spikes, while others offer variable rates that may fluctuate with market conditions.

Steps to Manage Rising AC Costs

Delaware residents have several options to minimize the impact of rising electricity costs on their summer cooling bills.

First, consider your electricity supply options. If you're currently on Delmarva Power's default service, comparing competitive supplier rates could provide savings. Gatby's Autopilot platform continuously monitors available rates and can automatically switch you to better plans when they become available.

Energy efficiency improvements offer another path to cost control. Simple steps like setting your thermostat to 78°F when home and 85°F when away can reduce cooling costs by 10-15%. Ceiling fans allow you to feel comfortable at higher thermostat settings while using minimal electricity.

Regular HVAC maintenance ensures your air conditioning system operates efficiently. Clean or replace air filters monthly during peak usage, and consider having your system professionally serviced before the summer heat arrives.

Smart thermostats can optimize your cooling schedule automatically, learning your preferences while minimizing energy waste. Many Delaware utility customers see 10-20% reductions in cooling costs after installing programmable or smart thermostats.

Regional Market Dynamics Affecting Delaware

Delaware's electricity costs are influenced by regional market conditions across the PJM grid, which spans from New Jersey to Illinois. Summer demand peaks across this entire region put upward pressure on wholesale electricity prices, affecting all participating states simultaneously.

Natural gas prices play a crucial role since gas-fired power plants provide much of the region's electricity generation. When natural gas costs rise, electricity generation becomes more expensive, and these costs flow through to consumer rates within a few months.

The U.S. Energy Information Administration reports that regional transmission constraints can also contribute to higher electricity costs during peak demand periods. When local demand exceeds local generation capacity, electricity must be imported from other regions at premium prices.

Delaware's coastal location provides some advantages, including access to offshore wind resources that could help stabilize long-term electricity costs. However, these renewable energy projects take years to develop and won't provide immediate relief from this summer's expected cost increases.

Timing Your Energy Decisions

The current shoulder season between peak demand periods presents an opportunity to review your electricity plan before summer arrives. Fixed-rate plans signed now may offer protection against further price increases during peak cooling season.

Competitive suppliers typically offer their best rates during low-demand periods like spring and fall. If wholesale costs continue rising through the summer, locking in a rate now could provide savings compared to waiting until peak season.

However, contract terms matter significantly. Early termination fees, introductory rates that increase after a few months, and variable rate plans that can change monthly all affect the true value of any electricity plan.

Gatby helps Delaware residents navigate these decisions by comparing total costs across different plan structures and usage patterns. Comparing plans on Gatby is always free, and the platform considers your actual usage history rather than just advertised rates.

What to Expect This Summer

Based on current market trends and the National Energy Assistance Directors Association's projections, Delaware residents should budget for electricity bills 10-20% higher than last summer's costs. The exact increase will depend on weather patterns, with hotter-than-normal temperatures driving even higher usage and costs.

Peak pricing typically occurs during the hottest afternoons when air conditioning demand reaches its maximum. Some competitive suppliers offer time-of-use rates that charge different prices based on when you use electricity, potentially offering savings for customers who can shift usage to off-peak hours.

The Delaware Public Service Commission monitors market conditions and supplier practices to ensure fair pricing and prevent market manipulation. However, regulatory oversight cannot eliminate the underlying supply and demand factors driving higher wholesale electricity costs.

Gatby has 4.8/5 stars from 500+ independent reviews from customers who have successfully managed their electricity costs through market volatility. The platform's automated monitoring ensures you're not overpaying as market conditions change throughout the summer.

Taking Action Before Peak Season

Delaware residents have a limited window to prepare for higher summer electricity costs. Reviewing your current electricity plan, implementing energy efficiency measures, and considering competitive supplier options now can help minimize the impact on your budget.

Energy efficiency improvements take time to show results, so starting preparations in spring provides maximum benefit during peak summer months. Similarly, electricity plan changes typically take one billing cycle to take effect, making early action more valuable than waiting until bills spike.

For households already struggling with energy costs, Delaware offers assistance programs through the Low Income Home Energy Assistance Program (LIHEAP). These programs can provide bill payment assistance and weatherization services to improve home energy efficiency.

Written by Hash Manesia, Energy Market Analyst at Gatby. Hash Manesia covers deregulated electricity markets across Texas and the Northeast, helping consumers navigate plan selection, rate comparison, and energy policy changes.

Reviewed by the Gatby Editorial Team on 2026-04-30

Frequently Asked Questions

How much will my Delaware electric bill increase this summer?

Based on current projections, Delaware residents should expect electricity bills 10-20% higher than last summer. For a typical home using 1,500 kWh during peak cooling months, this translates to an additional $12-30 per month. The exact increase depends on your usage patterns, current electricity plan, and how hot the summer becomes. Homes with older, less efficient air conditioning systems will see larger increases since they consume more electricity to maintain comfortable temperatures.

Should I switch electricity suppliers before summer in Delaware?

Switching to a competitive supplier before peak season can provide savings, but timing and plan selection matter significantly. Fixed-rate plans signed during the current shoulder season may offer protection against further price increases during summer months. However, you should compare total costs including fees and contract terms, not just advertised rates. Delmarva Power's current default rate is 8.15 cents per kWh, so competitive offers below this level could provide immediate savings.

What's causing electricity costs to rise across Delaware and the South Atlantic region?

Several factors are driving higher electricity costs including increased summer air conditioning demand, rising natural gas prices that affect electricity generation costs, and regional transmission constraints during peak usage periods. Delaware participates in the PJM electricity market, which spans multiple states experiencing similar cost pressures. When wholesale electricity prices rise due to these market conditions, the increases eventually flow through to consumer bills regardless of your chosen supplier.

How can I reduce my air conditioning costs this summer in Delaware?

You can minimize cooling costs through energy efficiency measures like setting thermostats to 78°F when home, using ceiling fans to feel comfortable at higher temperatures, and ensuring regular HVAC maintenance. Smart or programmable thermostats can reduce cooling costs by 10-20% through optimized scheduling. Additionally, comparing electricity suppliers for better rates and considering fixed-rate plans can protect against further price increases during peak season.

Does Delaware offer assistance programs for high summer electric bills?

Yes, Delaware provides energy assistance through the Low Income Home Energy Assistance Program (LIHEAP), which offers bill payment assistance and weatherization services to improve home energy efficiency. The Delaware Public Service Commission also oversees consumer protection programs and monitors supplier practices to ensure fair pricing. These programs are particularly valuable during peak summer months when electricity costs are highest due to air conditioning usage.

When is the best time to compare electricity plans in Delaware?

The current shoulder season between peak demand periods offers the best opportunity to compare and switch electricity plans. Competitive suppliers typically offer their most attractive rates during low-demand periods like spring and fall. Since electricity plan changes take one billing cycle to take effect, switching now ensures you'll have a new rate structure in place before peak summer cooling season begins. This timing can provide protection against further price increases during high-demand months.