Baltimore has experienced its share of extended power outages, from major summer thunderstorms and the remnants of tropical systems that push through the mid-Atlantic coast to winter ice storms that bring down power lines across the region. Most of these outages last hours and are an inconvenience. Some last days, and when they do, a Baltimore home without backup power becomes genuinely uncomfortable and potentially unsafe, particularly for households with medical equipment, small children, or elderly family members who rely on climate control.
A standby whole home generator is the most complete solution to this problem. Unlike portable generators that must be stored, dragged out, fueled, and managed during an outage, a standby generator is permanently installed outside the home, connected to the home’s electrical system and to a natural gas or propane supply, and starts automatically within seconds of a utility power interruption. It then runs the house normally until utility power is restored and shuts itself down automatically.
At McDaniel Electrical Construction, we install standby generators for Baltimore homeowners as part of our comprehensive residential electrical services. Here is what the decision and process involves.
Standby Generator vs. Portable Generator
Portable generators are less expensive to purchase but have significant practical limitations. They must be operated outdoors to prevent carbon monoxide accumulation in the home, require manual refueling with gasoline, must be started and managed manually, and only power selected circuits through extension cords or a transfer switch connection. For Baltimore homeowners who experience short, infrequent outages, a portable unit may be adequate.
Standby generators are permanently installed, connected to natural gas or propane, start automatically, and power the entire home or a selected load panel of critical circuits without any manual intervention. For Baltimore families who want reliable, automatic whole-home power backup, particularly in households where uninterrupted power has health or safety implications, a standby generator is the appropriate solution.
Sizing: How Much Generator Does Your Baltimore Home Need?
Generator sizing is measured in kilowatts and must match the electrical loads you want the generator to power. For a whole-home Baltimore generator that powers everything including central air conditioning, the calculation accounts for the startup load of the largest motor in the home, typically the air conditioner compressor, plus the combined running load of all other systems.
A 20 to 22 kilowatt generator is typically sufficient for most Baltimore single-family homes, powering the HVAC system, kitchen appliances, lighting, and all other standard household loads. Larger homes with higher electrical demands, homes with multiple HVAC systems, or homes with electric vehicle chargers may require larger units. McDaniel Electrical Construction performs load calculations for every generator installation to ensure proper sizing.
Fuel Options: Natural Gas vs. Propane
Most Baltimore homes that have natural gas service use natural gas-fueled generators, which connect to the existing gas line and eliminate the need for fuel storage or periodic refueling. Natural gas generators can run indefinitely as long as the gas utility supply is maintained, which is almost always the case even during extended power outages.
Baltimore homes without natural gas service use propane-fueled generators, which require a propane tank sized for the generator’s expected runtime during typical outage scenarios. A 500-gallon propane tank, which is a common size for generator installations, provides several days of continuous runtime for a whole-home generator at typical residential load levels.
The Transfer Switch: The Safety and Electrical Code Requirement
Every generator installation requires a transfer switch, a device that safely isolates the home’s electrical system from the utility when generator power is active. This isolation is not optional. It is a National Electrical Code requirement and a critical safety requirement that protects utility workers from the potentially lethal hazard of back-fed power from a generator entering the grid through a home’s connection.
Standby generator installations use an automatic transfer switch (ATS) that monitors utility power, automatically switches the home to generator power within seconds of an outage, and automatically transfers back to utility power when utility service is restored. McDaniel Electrical Construction installs and configures the complete transfer switch as part of every Baltimore generator installation.
What the Installation Process Looks Like
A standby generator installation involves placing the generator on a concrete pad adjacent to the home, connecting the generator to the fuel supply, running the electrical connection from the generator to the transfer switch and existing panel, installing and configuring the automatic transfer switch, and testing the complete system including a simulated power outage test.
The project requires permits from the relevant Baltimore jurisdiction and typically includes an electrical inspection. Most standby generator installations are completed within one to two days. McDaniel Electrical Construction manages the complete scope including all permitting and coordination with the fuel supplier if a new propane installation is required.
Schedule Your Baltimore Generator Consultation
Do not wait for the next extended Baltimore power outage to start thinking about generator backup. A standby generator is a long-term investment in your family’s safety and comfort that pays its return in the first major outage you sleep through without concern.
Call McDaniel Electrical Construction at (410) 303-8453 or visit mcdanielelecon.com to schedule your generator consultation. Our licensed team will assess your home’s electrical system, calculate the right generator size for your needs, and provide a detailed proposal.