About Charging


2013 Honda Fit EV

The big difference between gas cars and EV’s is that gas cars have to go to a gas station and pump. EV’s, on the other hand, charge while they are parked.

There are three main types of chargers, or electric vehicle supply equipment (EVSEs), each with different availabilities and charging capacities to match the amount of time the car is parked there. These chargers can be installed in homes or in public places.

Types of Chargers

Level 1: Level 1 charging uses the car’s 120 Volt charge cord to plug into a common 120v outlet. Although slow, the outlets are virtually everywhere and most cars spend more than 21 hours a day parked. If plugged in while parked, the car can maintain over 40 miles a day by just plugging-in overnight at home. There is no charging infrastructure to Level 1 charging as all that is needed is the charging cable that is included with the car and a 120V outlet.

Level 2: Level 2 chargers require additional EVSE and utilize 240V, just like a washing machine. Public charging stations are commonly Level 2 as they can deliver up to 20 miles of charge/hour, if using a 7.2KW charger. EV owners can also opt to install a Level 2 charger in their home starting at $599 for the charging unit and anywhere from $200-$1,000 for the installation and included permit. Commercial Level 2 chargers are more expensive if they are connected to a network.

DC Fast Charging: DC Quick Chargers are the fastest charging stations available for EV owners. These chargers utilize 480V and can support up to 125amps, which can charge an EV up to 80 miles in about 20 minutes. DC Quick Chargers are becoming increasingly common and are typically found at commercial sites and along highways to support through travel.

NOTE – Plug-in Hybrid Electric Vehicles (PHEVs) can only use Level 1 & 2 Chargers while most Battery-Electric Vehicles (BEVs) can use Level 1, 2, and 3/DC Fast Charging.

Charging Networks


Check out The Ultimate Guide to Electric Car Charging Networks from PluginCars.

Charging network providers in the Maryland area include:

To find a charger near you:

Home Installation


EVs can be charged through regular 120-volt household electrical outlets (Level 1), or you can install a Level 2 EVSE.

Here are some things to consider:

  • Residential Level 2 (7.2kW/240V/40A) stations begin at around $599 and can go up to $859 for the unit
  • Installation costs, including the permit, range between $200-$1000 when using an electrician and also depend on the location of the installation in the home or garage
  • Plugincars suggests buying an EVSE that can handle 30 amps
  • Consider where you will install your EVSE.  Garages typically provide shelter and accessibility.
  • Look into buying an EVSE with wireless capability, so you can start, end, and monitor charging sessions wirelessly
  • If you install a home charger, register with PlugShare as a residential charger so that other EV drivers can stop by for a quick refueling if needed
  • You may want to install solar panels to fuel your charger. If your EV charges using this clean energy, it could be completely emissions-free
  • See the state of Maryland’s Electric Vehicle Supply Equipment Rebate Program

Resources for at-home EVSE

  • Visit the AFDC’s Charging PEVs-at-Home-Page for comprehensive, up-to-date information on:
    • Charging Plug-In Electric Vehicles at Home
    • Installing Charging Equipment in Your Home
    • Complying With Regulations
    • Electricity Costs for Charging

Business Installation


Here are some things to consider:

  • Networked, commercial Level 2 chargers (7.2kW/20A/240V) range in price from $1,500-$3,000 for the unit
  • Installation costs for a wall-mounted unit range from $500-$2,000 and for a bollard-mounted unit costs range from $1,500-$3,500.
  • A permit costs $50 per unit
  • Consider where you will install your chargers. It is advantageous to install them in central and accessible places in relation to your business to encourage their use
  • Consider how and where you will advertise your charging station as well as any promotions for your customers who charge at your station
  • Register with PlugShare and other charging-locating websites and apps to market your charging station to the EV community
  • See the state of Maryland’s Electric Vehicle Supply Equipment Rebate Program

Resources for workplace charging


  • DOE’s Workplace Charging Challenge
    • Workplace charging is an appealing employee motivator that can help attract and retain a cutting-edge workforce. 90% of Challenge partners report that their staff has expressed satisfaction with their workplace charging program.
    • Workplace charging can also be a valuable component of corporate sustainability efforts. Challenge partners save a combined 1.7 million gallons of gasoline and 17 million pounds of greenhouse gas emissions each year.
    • Employers who provide charging demonstrate progressive leadership and a willingness to adopt advanced technology. 70% of Challenge partners have received third party positive recognition for their workplace charging efforts and 60% helped another employer develop their workplace charging program.
  • DOE’s PEV Handbook for Workplace Charging Hosts
    • The U.S. Department of Energy’s Clean Cities program supports local actions to reduce petroleum use in transportation. Nearly 100 Clean Cities coalitions across the country work to deploy alternative fuels, advanced vehicles, and fuel economy improvements. Each coalition includes a diverse and capable team of stakeholders from businesses, utilities, government agencies, vehicle manufacturers, fleets, and other organizations. Find your local Clean Cities coordinator by visiting https://cleancities.energy.gov/.

Resources for EVSE at multi-unit dwellings

As a general note, you may be surprised at how many public EV chargers exist at local businesses, offices, and parking garages.  Some businesses may let you use them for free while others require a small payment. Public stations are also offered by the MTA and other state agencies.