Copperline Electric Co. · Licensed Maryland electricians
Power,
done right.
Panel upgrades, whole-home standby generators and EV chargers. Permitted, inspected and built to outlast the house.
Master electrician
on every job
Permit + inspection
pulled and passed by us
Same-week installs
panels, generators, chargers
5-year workmanship
warranty, in writing
Try it · Breaker board
Flip a breaker. Light a room.
This is how your panel thinks. Every room hangs off its own breaker, and the main up top feeds them all. Switch them on and watch the house come back to life.
Load on the main
0 A
Rooms lit
0 / 9
0% of a 200 A service
Tip: try the main breaker at the top.
02 · Storm
Storm hits at 9:14 p.m.
Wind, ice, a tree on the line. It's going to happen this winter. The only question is what your house does next.
Try it · Outage drill
Cut the power. Count the seconds.
Press the button and the grid drops, in real time. Watch the transfer switch do its job. You don't have to touch anything, and neither will you at 9 p.m. in an ice storm.
Clock
0.0 s
Utility
240 V
Generator
Standby
Grid power: normal
Timings are typical for an air-cooled home standby unit with an automatic transfer switch; your model's settings may differ.
Generator sizer
What size generator does your house need?
Tick what has to keep running. We add headroom for motors starting (a fridge or AC compressor pulls a surge for a second).
Running load
10.0 kW
Recommended standby unit
14 kW
Essential circuits. Pairs with a managed transfer switch so the big stuff waits its turn.
Estimate only. We confirm the size with a load calculation on site.
03 · EV charging
Charge at home. Wake up full.
A Tesla Wall Connector on its own 60 A circuit adds up to about 44 miles of range per hour.
Charge planner
Plug in after dinner. Full by breakfast.
Slide in your daily driving and when you usually get home. The math assumes a Wall Connector on a 60 A circuit (48 A, 11.5 kW).
Charge time
1.1 hr
12.6 kWh back in the battery
Topped up by
8:06 p.m.
then it sits full and waiting
Home charging / mo
$64
at a demo $0.17/kWh
Same miles on gas
$159
28 mpg at $3.30/gal (demo)
Roughly $1,138 a year back in your pocket.
Panel check
Will your panel handle it?
A quick estimate built the way a load calculation works. Tell us the house, add what you're planning, and see where your service lands.
Estimated demand
106 A / 100 A
Time to upgrade
Plan on a 200 A service upgrade before adding these loads.
Estimate only. A licensed electrician confirms with a full load calculation.
Services & pricing
Straight prices. Real permits.
Every quote is flat and in writing before we start. Prices below are demo examples.
Panel upgrades
100 A to 200 A, Federal Pacific and Zinsco replacements, subpanels, whole-home surge protection.
Standby generators
Sizing, gas tie-in coordination, pad, transfer switch, permits and the first year of service.
EV chargers
Tesla Wall Connector and any J1772 or NACS charger, load management when your panel is tight.
Troubleshooting
Dead outlets, tripping breakers, flickering lights, burning smells. Same-week, often same-day.
Questions
Good questions.
Do you pull permits?+
Yes, on every panel, generator and charger job. We schedule the county inspection and meet the inspector so you don't have to.
How long is the power off for a panel upgrade?+
Usually 4 to 8 hours on the day. We coordinate the disconnect and reconnect with the utility ahead of time.
How fast does a standby generator take over?+
Typically within seconds. The transfer switch confirms the outage is real, the engine starts and warms up, then the house moves over automatically.
Can I install a Tesla Wall Connector on a 100 A panel?+
Often, yes. We run a load calculation first. If the panel is tight, we set a lower charging current or add load management instead of forcing an upgrade.
Are you licensed and insured?+
Yes. A Maryland master electrician supervises every job, and we carry full liability and workers' comp. (Demo business: license number is a placeholder.)
Book a visit
Book an electrician.
Pick the job and a two-hour window. We'll call to confirm and text when the truck is 20 minutes out.
Electricians on the road today · (410) 555-0199