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Incentives/Policies for Renewables & Efficiency

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Dover Public Utilities - Green Energy Program Incentives   

Last DSIRE Review: 11/05/2014
Program Overview:
State: Delaware
Incentive Type: Utility Rebate Program
Eligible Renewable/Other Technologies: Solar Water Heat, Solar Space Heat, Wind, Geothermal Heat Pumps, Fuel Cells using Renewable Fuels
Applicable Sectors: Commercial, Industrial, Residential, Nonprofit, Schools, Local Government, Agricultural, Institutional
Amount:Solar Thermal: $1.00/annual kWh displaced
Wind: $0.35 - $1.25/W
Fuel Cells: generally 20% of installed costs, except 35% for non-profits
Geothermal Heat Pumps: $700 - $800/ton
Maximum Incentive:Solar Thermal: $2,500 for residential, $7,500 for non-residential, non-profits
Wind: $2,500
Fuel Cells: $7,500 for residential, $10,000 for non-residential, non-profits
Geothermal Heat Pumps: $3,000 for residential, $10,000 for non-residential, non-profit
Eligible System Size:Wind: 500 W minimum
Equipment Requirements:Systems must carry a full five-year warranty and meet applicable UL, IEEE, and NEC standards; solar thermal systems must be SRCC certified (OG-300 for residential and OG-100 for non-residential); geothermal heat pumps must have a minimum EER of 18.0 and COP of 3.6
Installation Requirements:On- and off-grid systems are eligible; systems must be installed by a participating contractor; solar PV and solar thermal systems must meet orientation, shading, and aesthetics requirements; wind energy systems may be reviewed for wind resource adequacy
Ownership of Renewable Energy Credits:Customer-generator
Funding Source:DEMEC Green Energy Fund (9 individual utility funds, of which Dover is one)
Program Budget:$128,000 estimated annually for Dover (based on 2008 retail electricity sales); varies by month
Start Date:2007
Expiration Date:None
Web Site:
Authority 1:
Date Enacted:
Date Effective:
26 Del. C. ยง 363
Authority 2:
Date Effective:
Municipal Utilities' Green Energy Fund Program Regulations
03/01/2011 (as amended)

NOTE: Starting Nov 25, 2013 City of Dover PV grants programs have been suspended for revision.

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. The green energy programs offered by the state's municipal utilities occasionally vary from city to city. The Dover Green Energy Incentives program is unique in that the incentive levels and limits are distinctly different from those offered by the other municipal utilities, as well as those offered by Delmarva Power and the Delaware Electric Cooperative. For information on the incentives offered by other utilities, please visit the DSIRE Delaware page. The incentives offered in Dover are detailed below.

Solar Thermal (Domestic Hot Water, Radiant Heat): $1.00 per annual kWh saved, up to $2,500 for residential systems and $7,500 for non-residential systems

Wind: The incentive is $1.25/watt (W) for the first 5 kilwatts (kW) of capacity (0-5 kW), $0.75/W for the next 5 kW (5-10 kW), and $0.35/W for the next 40 kW (10-50 kW) with a maximum incentive for all sectors set at $2,500

Geothermal Heat Pumps:$800/ton for the first two tons of and $700/ton for additional capacity, up to $3,000 for residential systems and $10,000 for non-residential and non-profit systems.

Fuel Cells: 20% of installed costs, up to $7,500 for residential systems and $10,000 for non-residential and non-profit systems.

Systems are subject to a variety of equipment, installation and warranty requirements, including limitations on system orientation and shading for solar energy systems. In addition, to encourage energy conservation, an energy audit requirement has been instituted for both residential and non-residential customers as a condition of eligibility. The Delaware Energy Office processes applications and conducts technical reviews for this program. The program rules do not specify the ownership of renewable energy credits (RECs) associated with system energy production; however, net metering customers in Delaware retain ownership of RECs unless they voluntarily relinquish such ownership. More information about the program is included in the program manual.

Under the 2005 Delaware renewable portfolio standard (RPS) legislation, municipal utilities 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 supported by an equal surcharge (i.e. $0.000178/kWh). All of Delaware's municipal utilities opted out of the RPS requirements and established their own green energy funds.

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 electric cooperatives was slightly revised. While these amendments change several other opt-out requirements, the provision mandating green energy fund contributions in the event of an opt-out remains unchanged.


  Program Information - Green Energy Program
Delaware Department of Natural Resources and Environmental Control
Delaware Energy Office
1203 College Park Drive, Suite 101
Dover, DE 19904
Phone: (302) 735-3480
Fax: (302) 739-1840
Web Site:
NCSU - home
Disclaimer: The information presented on the DSIRE web site provides an unofficial overview of financial incentives and other policies. It does not constitute professional tax advice or other professional financial guidance, and it should not be used as the only source of information when making purchasing decisions, investment decisions or tax decisions, or when executing other binding agreements. Please refer to the individual contact provided below each summary to verify that a specific financial incentive or other policy applies to your project.

While the DSIRE staff strives to provide the best information possible, the DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. make no representations or warranties, either express or implied, concerning the accuracy, completeness, reliability or suitability of the information. The DSIRE staff, the N.C. Solar Center, N.C. State University and the Interstate Renewable Energy Council, Inc. disclaim all liability of any kind arising out of your use or misuse of the information contained or referenced on DSIRE Web pages.

Copyright 2014 - 2015 North Carolina State University, under NREL Subcontract No. XEU-0-99515-01. Permission granted only for personal or educational use, or for use by or on behalf of the U.S. government. North Carolina State University prohibits the unauthorized display, reproduction, sale, and/or distribution of all or portions of the content of the Database of State Incentives for Renewables and Efficiency (DSIRE) without prior, written consent.