Wires R Us is a Briggs & Stratton Certified Installer, which means your system is installed to manufacturer standards for reliable performance when you need it most. We’ll help you choose the right generator for your home, install it safely and code-compliantly, and make sure it’s set up to automatically kick on during an outage so your power stays on with little to no interruption. Need generator installation in Rapid City? We serve the Black Hills area and are ready to help you get protected.
Box Elder has grown faster than almost anywhere in the area. The growth around Ellsworth Air Force Base has brought new subdivisions and a steady stream of homeowners who want their electrical to keep up with how they live now. Two requests come up again and again on the east side: a proper Level 2 EV charger for the garage, and backup power for homes on acreage where an outage shuts off more than the lights.
Wires R Us has wired homes across the Black Hills since 1999, and we are a second-generation company run by a licensed electrician. Both of these jobs sit at the higher-risk end of residential electrical, which is exactly the work we focus on and exactly the work you want a licensed crew on.
How a code-correct EV charger install actually works in Box Elder, why a property on acreage is a strong candidate for a standby generator, and how to tell whether your panel can carry the load before you buy the equipment.
A Level 2 charger runs on 240 volts and pulls current for hours every night.3 That continuous draw is the part homeowners underestimate. The code treats EV charging equipment as a continuous load, which means the branch circuit and breaker have to be sized at 125 percent of the charger's rated draw rather than simply matched to it.1 A 48-amp charger does not get a 50-amp circuit. Skip that math and the connection runs hot over time.
There is a second detail most installers in this area still miss. If you want a plug-in charger rather than a hardwired one, the receptacle behind it cannot be the standard 50-amp outlet you would use for a range. A continuous EV load needs a heavy-duty, industrial-grade receptacle with stronger contacts, and it costs several times what a builder-grade outlet does for good reason. Our suppliers had not even stocked the part when we started installing these. The cheaper receptacle is one of the quiet ways an EV install fails months later, so when we install a plug-in unit you get the right receptacle or we hardwire it.
The question to settle first is capacity. Plenty of older Box Elder panels do not have a free 60-amp slot to give, and adding a charger to a full panel is where people get into trouble. If your panel is near its limit, the charger may need a panel upgrade first, which we will tell you before you spend a dollar on the charger. The full scope is on our EV charger installation page, and because Box Elder borders Rapid City, the same crews and timelines from our Rapid City EV installs apply here.
For a home in town, an outage is an inconvenience. For a Box Elder property on acreage with a well pump, a septic system, and a long driveway, an outage can shut off your water and your heat at the same time. That is the difference between a portable unit you drag out in a storm and a standby generator that starts itself the moment the grid drops.
A standby generator is wired into your home through a transfer switch, and that piece is non-negotiable. The transfer switch isolates your house from the utility line so the generator can never backfeed power onto the grid, which is both a code requirement for these optional standby systems and a safety issue for the crews repairing the outage.2 A generator hooked up without proper transfer equipment is one of the more dangerous installs we get called to fix.
Sizing matters just as much. The right generator depends on what you need to run during an outage, the well pump, the furnace, the refrigerator, rather than powering the whole house at once. We size the unit to the load and the panel, walk you through the exercise and maintenance cycle, and handle the full install. The complete process is on our standby generator installation page, and it mirrors the generator work we do throughout Rapid City next door.
EV chargers and generators both tie straight into your main panel, so an older or maxed-out panel is the most common thing standing between a homeowner and the install they want. If your home still runs a Federal Pacific or Zinsco panel, that is a known hazard before you add anything to it. Our recalled-panel list for Black Hills homeowners walks through which brands are affected, and a panel replacement is the fix when one of them turns up on your wall.
Most residential electrical is forgiving. EV chargers and generators are not, because both carry heavy continuous current straight into the panel. If something in a home is going to cause a fire, it is far more likely to be a 240-volt continuous load wired wrong than a bedroom outlet. That is the whole reason we focus on this work. The same crews that handle full new construction across the region are the ones on your home, we leave the job cleaner than we found it, and we would rather tell you a job needs a service upgrade up front than rush an install that comes back later.
1 National Electrical Code (NFPA 70), Article 625. EV supply equipment is a continuous load; the branch circuit and overcurrent device are sized at 125 percent of the rated load.
2 National Electrical Code (NFPA 70), Article 702, Optional Standby Systems. Transfer equipment is required to prevent interconnection of the standby source with the utility supply.
3 U.S. Department of Energy, Alternative Fuels Data Center. Level 2 charging operates on a 240-volt circuit and is the standard for residential charging.
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"We enjoy having Wires R Us do the electrical on the custom homes we build. Their organization and wiring is both pristine!"
"The very first job WRU did was our job so many years ago. I have no idea how many jobs they have done for us since. They are the most efficient and proficient electrical company around. Highly recommended!"
We treat every job site with respect and leave it better than we found it.
We show up on time, take responsibility and do our job.
Clean wires is not just a gimmick, it reflects the quality throughout.
The balance of precision, and speed. We've mastered our trade.
We install to current electrical code standards and maintain clean, clearly routed wiring, proper labeling, and consistent workmanship. Our organized approach reduces missed details, inspection corrections, and rework, which keeps projects moving forward instead of stalled at inspection.
Our crews maintain organized wire runs, clean material staging, and regular site cleanup so other trades can work efficiently and safely. We treat job sites with respect and leave them cleaner than we found them, reducing congestion and coordination issues during construction.
Yes. Our crews are structured for efficiency and consistent scheduling. We communicate clearly with builders, show up when scheduled, and maintain predictable workflows so electrical work stays aligned with framing, drywall, and inspection timelines — even on higher-volume projects.
Yes. We work closely with general contractors, builders, and site supervisors to coordinate layouts, timing, changes, and inspections. Clear communication and organized planning help prevent trade conflicts, delays, and costly rework.