Maryland solar leads

Baltimore’s solar resource

For Baltimore, the largest city in Maryland by the Census Bureau’s July 1, 2025 estimates, the PVWatts calculator reports 4.84 kWh per square meter per day (checked October 9, 2026). PVWatts was developed by NREL and is now published by the National Laboratory of the Rockies.

Behind the figure: the version 8 standard system, a fixed open-rack array aimed south with a 20-degree tilt, at Baltimore’s Census gazetteer location and using typical-year weather from the National Solar Radiation Database. Rowhouse roofs, shading from neighbors and different angles will move the number up or down, so it is best used to compare states and cities, not to size any one system.

Maryland’s net metering statute

In Maryland the General Assembly sets the core of net metering in section 7-306 of the Public Utilities Article, and the Public Service Commission carries it out (checked October 9, 2026). An eligible customer-generator owns, leases or contracts with a third party for a solar or other qualifying system on its premises that is meant mainly to offset its own use. The Commission must have the utilities offer a net metering contract or tariff first come, first served until the generating capacity of customer-generators in the state reaches 3,000 MW.

Most systems may be up to 2 MW; community solar systems and meter-aggregated facilities may be up to 5 MW. The net metering tariff has to match the rates and charges the customer would otherwise pay, and the statute bars new demand charges, standby charges or higher minimum charges for being a customer-generator.

When a system produces more than the home uses in a month, the customer pays only customer charges for that month and the excess is carried forward. The customer can accrue it for up to 12 months, in a period ending with the billing cycle just before the end of April, after which the electric company pays out what is left; or, except at a municipal utility or cooperative, the customer can choose to accrue it with no end date, with any balance paid when the account closes. A buyer’s installers will hear these choices from homeowners comparing offers.

The Maryland Solar Access Program

The Maryland Energy Administration runs the Maryland Solar Access Program, which gives rebates to help income-eligible residents put solar PV on their homes. MEA says the program was created by the Brighter Tomorrow Act of 2024 and is codified in section 9-2016 of the State Government Article. The fiscal year 2027 round opened to new applications on July 29, 2026, with an application deadline of May 31, 2027, with funding from the Strategic Energy Investment Fund (checked October 9, 2026).

Two features shape how installers use it. A rebate reservation must be approved before installation, and a new application requires a contractor from the program’s participating contractor list, which MEA updates on a rolling basis. The homeowner, or the contractor on the homeowner’s behalf, applies through the My MEA portal. This page does not state rebate amounts per home.

Detached homes in Maryland

Townhouses and apartments are a large part of Maryland’s housing. In table B25024 of the ACS 5-year 2020-2024 estimates, 1,310,576 of the state’s 2,560,784 housing units are single-family detached homes, or 51.2%, the third lowest share of any state. Among owners, table B25032 counts 1,133,772 detached homes, 71.0% of 1,597,565 owner-occupied homes; the rest are attached homes, units in multi-unit buildings and other types.

For the age of Maryland housing and home values, see Maryland window replacement leads; heating fuels and HVACR licensing are on Maryland HVAC leads.

Using the Maryland facts in a solar campaign

Maryland pairs a sizable rooftop base with a housing stock full of townhouses, under a statute that spells out how excess generation is handled. Three points a buyer can act on:

• Attached homes change the job. With only 51.2% of housing units detached in the 2020-2024 ACS, a buyer that does not work on rowhouse or townhouse roofs can rely on the county shares when choosing ZIP codes.
• The program cap is in the law. PUA 7-306(d) ties the net metering program to 3,000 MW of customer capacity (checked October 9, 2026), and installers follow how close the state is to that line.
• Income-eligible homeowners have a separate route. The Maryland Solar Access Program requires a reservation before installation and a listed contractor (FY27 round opened July 29, 2026), so installers on that list work with a different process for those homeowners.

These are descriptions of housing, installed capacity and state rules. They make no claim about how many Maryland homeowners ask for solar or where.

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