Delaware Solar Rebates And Incentives

Rebates list

Delaware Rebates and Incentives Summary

Delaware, the first state, has been working to reduce its energy use, in addition to offering incentives for renewable energy. The state really started boosting its efforts in 2009 under Governor Jack Markell (D). Markell assembled a council of citizens to develop plans for reducing the state’s energy consumption. Since then the state has enacted a renewable portfolio standard requiring the state’s utilities to source 25 percent of their energy from renewable resources by compliance year 2025-2026.

To meet those requirements, the state’s utility companies, offer incentives to homeowners and small businesses, including farms, to go solar. The state also offers low-interest rate loans to support solar and other renewable energy technologies and energy efficiency improvements for residents in the state. Like other states in the U.S., Delaware has a renewable energy credit market under allowing renewable energy generators to sell the credits to a third-party like a utility to help them meet their RPS requirements. 

Incentives in the state have been popular in the past and are often exhausted quickly, so it’s a good idea to check with the state and local utilities to find out what the most current rebate levels. Residents and businesses can learn more about local options through qualified installers and Energize Delaware, a service from Sustainable Energy Utility (SEU), a non-profit organization created by Delaware in 2007, that has information about sustainable energy options and incentives to make it easier for folks to go solar, renewable and energy efficient in Delaware. 

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Building Energy Code

NOTE: Much of the information presented in this summary is drawn from the U.S. Department of Energy’s (DOE) Building Energy Codes Program and the Building Codes Assistance Project (BCAP). For more detailed information about building energy codes, visit the DOE and BCAP websites.

On May 2014, Delaware updated its energy code to 2012 IECC with amendments for residential sector and ASHRAE 90.1-2010 with amendments for the commercial sector. The Delaware specific amendments to the energy code can be accessed on the regulation webpage. These codes are effective starting November 2014 following a six month grace period. 


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Delaware Electric Cooperative - Energy Saving Programs

Delaware Electric Cooperative provides customers with energy saving tips on water heating, kitchen appliances, lighting, HVAC, and more, as well as energy saving programs such as Beat the Peak. Beat the Peak offers customers peak energy price text message alerts, building indicators, and two free LED bulbs.

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Delaware Electric Cooperative - Green Energy Fund

Note: The Green Energy Fund regulations are currently under revision to improve program function and meet the requirements of the Delaware Energy Act. The Delaware Division of Energy and Climate webpage will provide details about relevant public meetings and workshops, proposed draft regulations, and other documents during the regulatory revision process.

Under the 2005 Delaware Renewable Portfolio Standard (RPS) legislation, electric cooperatives were allowed to opt out of the RPS schedule if they met certain other requirements. One such requirement was that they contribute to the existing Green Energy Fund for investor-owned utilities or create their own green energy fund

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Delaware Electric Cooperative - Green Energy Program Incentives

The Delaware Electric Cooperative (DEC) provides incentives for solar photovoltaic (PV), solar thermal, wind, fuel cells, and geothermal installed by DEC member-owners. Eligibility is limited to systems that are intended to supply on-site energy needs. Incentives are available to both residential and non-residential member-owners based upon average peak demand over a 12 month period. Class A  member-owners are defined as those with an average monthly peak electric demand of 50 kilowatts (kW) or less over the previous twelve months. Class B member-owners are those with an average monthly peak electric demand of greater than 50 kW over the previous twelve

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Delaware Municipal Electric Corporation - Green Energy Fund

The Delaware Green Energy Fund was created in 1999 as the part of the deregulation of Delaware's electric utilities. Under the 2005 Delaware renewable portfolio standard (RPS) legislation, municipal utilities were allowed to opt out of the compliance schedule if they contributed to the Green Energy Fund for investor-owned utilities or created their own green energy fund with an equal surcharge. In 2010 the Delaware RPS was amended by SS 1 for S.B. 119 and the section (26 Del. C. § 363) detailing the obligations of municipal utilities was slightly revised. While these amendments changed several other opt-out requirements, the

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Delmarva - Green Energy Fund

The Delaware public benefits program, enacted through the state’s electric utility restructuring law in March 1999, collects approximately $2.6 million annually for efficiency and renewable programs and $0.8 million annually for low-income programs. Funds for the public benefit programs are collected from Delmarva Power and Light customers (the state's only investor-owned utility). Separate public benefit funds exist for the Delaware Electric Cooperative (DEC) and the state's municipal utilities through the Delaware Municipal Electric Corporation (DEMEC)

Prior to July 2007, the Delmarva fund collected $0.000178 per kWh (0.178 mills/kWh) to fund renewable energy and energy efficiency incentive programs. The collections

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Delmarva Power - Green Energy Program Incentives

The Green Energy Program consists of three separate programs: one for Delmarva Power & Light (DPL), the state's only investor-owned utility; one for the state's municipal utilities; and one for the Delaware Electric Cooperative (DEC).  This summary provides incentives available customers of Delmarva Power and Light (DPL). The grants are administered by the DE Energy Office. 

The investor-owned utility (DPL) program was established as part of The Electric Utility Restructuring Act of 1999, and is supported under Delaware's public benefits program, the Delmarva Power Green Energy Fund. Under the program, incentives are available for the installation of qualifying photovoltaic

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DEMEC Member Utilities - Green Energy Program Incentives

NOTE: The municipal electric utilities serving New Castle, Clayton, Dover, Lewes, Middletown, Milford, Smyrna, and Seaford do not offer any rebates for individual renewable energy systems. Incentives are only available for residents of Newark. Please see the program web site for further information on the use of green energy funds in these jurisdictions. 

Delaware's municipal utilities provide incentives for solar photovoltaic (PV), solar thermal, wind, geothermal, and fuel cell systems installed by their electric customers. Eligibility is limited to systems that are intended to supply on-site energy needs. Incentives are available to both residential and non-residential member-owners, generally up to

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Energize Delaware Home Energy Loan Program

Eligible homeowners participating in the Home Performance with ENERGY STAR program have the option to finance energy efficiency improvements through low-interest loan program offered through Energize Delaware.  The loan program is administered by the Delaware Sustainable Energy Utility, which as selected AFC First as a third party program manager to distribute the funds.


To qualify for the program, participants must be registered property owner currently living in a separately metered, one to four unit detached or attached residence. The owner should be participating in the Home Performance with ENERGY STAR program. Single homes, duplexes, condominiums, and townhouses qualify for

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Energy Conservation Standards for State Facilities

In August 2004, Delaware’s governor signed House Bill 435, requiring state agencies to purchase ENERGY STAR qualified products if they are available competitively and within a reasonable time frame, and if they meet appropriate performance standards. Separately, in February 2010 Governor Markell issued Executive Order No. 18, which sets a variety of energy conservation goals and requirements intended to make the state a leader by example in clean energy and sustainability.

Under Executive Order No. 18, executive branch state agencies and departments were required to reduce energy consumption by 30% by the end of Fiscal Year (FY) 2015 when compared

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Green Grant- Solar Hot Water and Geothermal program

Starting from August, 2014, Delaware Sustainable Utility (DESEU) and Delaware Department of Natural Resources and Environmental Control (DNRC) are jointly offering financial incentives for solar hot water and geothermal systems. The program has total budget of $1 million for the fiscal year 2014-2015.


The program is open to all non-residential and non-profit participants in the State, regardless of utility jurisdiction.  To apply for the program, applicants must sign up for an online account on the website. Paper applications are no longer accepted by the program. The project needs to be approved by the program before construction process. Incentives

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Interconnection Guidelines

NOTE: Delaware law (26 Del. C. § 1014) requires the Delaware Public Service Commission (PSC), Delaware Electric Cooperative (DEC), and municipal utilities to develop interconnection rules using as a guide the Interstate Renewable Energy Council's (IREC) model interconnection rules and the U.S. Department of Energy's best practices for interconnection. This entry largely addresses the rules used by Delmarva Power, the state's largest utility.

Delmarva, Delaware's only investor-owned electric utility, has four basic levels of interconnection based on system size and system type (inverter-based or non-inverter-based). In June 2011 the PSC issued Order No. 7984 approving final revised rules

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Net Metering


In Delaware, net metering is available to any customer that generates electricity using solar, wind or hydro resources, anaerobic digesters, or fuel cells capable of being powered by renewable fuels. Grid-interactive electric vehicles are also eligible for net metering treatment for electricity that they put on the grid, although these vehicles do not themselves generate electricity. 

System size

The maximum capacity of a net-metered system is 25 kilowatts (kW) for residential customers; 100 kW for farm customers on residential rates; two megawatts (MW) per meter for non-residential customers of Delmarva Power and Light (DP&L); and 500 kW per meter

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Renewables Portfolio Standard

Note: S.B. 33, enacted in February 2021, increased and extended the RPS. 

In 2005, S.B. 74 established a renewables portfolio standard (RPS) requiring retail electricity supplier to purchase 10% of the electricity sold in the state from renewable sources by compliance year (CY) 2019-2020. After multiple revisions, in July 2010 by S.B. 119 the RPS goal was increased to 25% by CY 2025-2026. The RPS was extended again by S.B. 33 of 2021. The RPS applies to the state's investor-owned utilities, retail electric suppliers, municipal utilities, and rural electric cooperatives. Municipal utilities and rural electric cooperatives are allowed to

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Solar Renewable Energy Credits (SRECs) Spot Market Program

NOTE: While interested parties can still trade DE SRECs in the spot market, the spot market in itself is limited since most of the SRECs produced are part of the SREC Purchase Program, or the SREC Procurement Program. The price for DE SRECs are usually similar to PA SRECs prices. 

Delaware Renewable Portfolio Standard (RPS) requires the retail electricity suppliers to purchase 25% of the electricity sold in the state from renewable sources by 2025. The RPS also includes special provision that requires 3.5% of renewable energy goal to be met with solar photovoltaic (PV) resources. The RPS

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Solar Rights Law

In July 2009 Delaware enacted legislation prohibiting private covenants (i.e., homeowner's association rules) from restricting the use of roof or ground-mounted solar systems on privately owned residential dwellings. The law was amended in 2019 with the passage of HB 65, which voided all prior covenants or restrictions regardless of the date recorded (previously, legal instruments prohibiting solar recorded before January 1, 2010 were enforceable). 

Although the wording of the legislation refers generally to "solar energy", the title of the bill references only photovoltaic (PV) systems as eligible for these protections. Only single-family residential structures which are not considered common

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SREC Procurement Program

NOTE: The 2019 SREC Procurement Results were posted. The overall weighted average for the solicitation was $32.75 per SREC. 

Delaware Solar Renewable Energy Certificate (SREC) Procurement Program is designed to assist in the creation of a market for SRECs and to provide a mechanism for the procurement of SRECs to ensure that retail electricity suppliers meet the requirements set forth in Delaware's Renewable Energy Portfolio Standards Act (REPSA).

The program utilizes a public solicitation for SRECs for different tiers of solar generators based on capacity. The Sustainable Energy Utility (SEU), contracted with InClime, will administer all aspects of the

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Sustainable Electric Utility (SEU)- SREC Purchase Program

NOTE: On August 2016, additional $750 thousand was allocated to the SREC purchase program, increasing the total funding for the program to $3.75 million. The program also has been extended to June 2017. As of August 2016, DESEU has disbursed $1.87 million of funds and has received requests for another $1.34 million for systems under construction. 

SREC purchase program is a joint incentive of Delaware Division of Energy and Climate (DNREC) and the state’s Sustainable Energy Utility (SEU). The program offers a standard onetime payment of $450 per kW for the first 20 years of SRECs created by the system

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Sustainable Energy Utility (SEU) - Home Performance with ENERGY STAR

NOTE: To be eligible for the rebates, the rebate reservations must be made before December 31, 2015, and the upgrades must be completed by December 31, 2015 as well. 

Home Performance with ENERGY STAR® is a national program from the US EPA and DoE to increase energy efficiency in the residential sector. Energize Delaware is the local Home Performance initiative sponsored by Delaware Sustainable Energy Utility (SEU) takes a whole-house approach to improving a home’s comfort and safety. Rather than focusing on a single problem, trained participating contractors use a comprehensive home energy audit with specialized diagnostic tests to pinpoint

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Sustainable Energy Utility (SEU) - Revolving Loan Fund

The Revolving Loan Fund Objective is to encourage the adoption and installation of end-user energy efficiency measures and customer-sited renewable generation that result in savings that can lower customers’ bills and reduce the environmental impacts of energy production, delivery, and use.

Program financing is available to all credit-qualified businesses, local governments, school boards, and non-profits located in existing facilities in the State of Delaware (see complete guidelines). Eligible activities include: installation of eligible measures in or on a building or site owned or leased by the applicant; conducting an energy efficiency audit; code-related repair and health and safety measures

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Wind Access and Permitting Law

In July 2009, the Delaware legislature enacted a law (HS 1 for H.B. 70) prohibiting unreasonable public and private restrictions on the installation of wind energy systems on single-family residential properties. The prohibition includes restrictions put in place by county and local governments; homeowner's associations; and organizations formed for the management of commonly owned properties. The provisions apply only to wind energy systems that qualify for support under the state Green Energy Fund -- which offers incentives for residential wind energy systems -- or similar programs administered by Delaware's State Energy Office.

The law also defines a limited set of

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