Electrical engineering · PE design & sealing
Steady power, engineered to code.
Electrical engineering, built to hold.
Renertia designs and seals electrical systems for residential, commercial and utility-interactive projects, from service entrances and distribution to solar PV and battery energy storage. Every drawing set is checked against the code edition and utility rules that govern its site.
Services
General electrical engineering
Design, calculations and sealed drawings for permit and construction, for owners, contractors, developers and architects.
Building power & distribution
Services, switchboards, panelboards and feeders for new buildings and renovations.
- One-line diagrams
- Load calculations (NEC Art. 220)
- Panel schedules & riser diagrams
Commercial & tenant fit-outs
Power, lighting and life-safety electrical for offices, retail, hospitality and healthcare spaces.
- Power & lighting plans
- Energy code lighting compliance
- Coordination with MEP trades
Residential electrical
Single- and multi-family permit drawings, service upgrades and additions.
- Service & meter upgrades
- Dwelling load calculations
- Sub-panel and feeder design
EV charging, generators & ATS
Add-on systems sized against the existing service, with load management where capacity is short.
- EVSE layouts (NEC Art. 625)
- Standby generators & transfer switches
- Energy management systems
Power system studies
Analysis that supports equipment ratings and safe work practice.
- Short-circuit & coordination
- Arc-flash (NFPA 70E)
- Voltage drop & conductor sizing
Plan review & PE sealing
Independent technical review of third-party drawing sets, redlines, and sealing where licensed.
- Code & AHJ compliance review
- Redlined markups
- Signed & sealed PDFs
Sectors
Buildings and facilities we design for
Each building type has its own code articles, owner standards and reliability needs. We design to them from the first sheet.
Hospitals & healthcare
Essential electrical systems for hospitals, clinics, surgery centers and medical offices.
- Life safety, critical & equipment branches (NEC Art. 517)
- Emergency generators & ATS (NFPA 99, 110)
- Isolated power & patient care spaces
Commercial buildings
Offices, retail, restaurants and mixed-use, from core-and-shell to tenant fit-out.
- Service & distribution design
- Lighting, controls & energy code
- Tenant metering & load studies
Industrial & manufacturing
Plants, warehouses and process facilities with motor and heavy equipment loads.
- Motor control & feeder design
- Medium-voltage services
- Short-circuit & arc-flash studies
Education & public buildings
Schools, universities, municipal and government facilities.
- Emergency & egress lighting
- Fire alarm power coordination
- Phased renovations in occupied buildings
Water & wastewater
Treatment plants, pump stations and utility facilities.
- Motor & VFD power design
- Standby generation
- Utility interconnection packages
Multifamily & hospitality
Apartments, condominiums, hotels and senior living.
- Dwelling unit load calculations
- Meter centers & house panels
- EV charging for parking
Specialties
Solar PV and battery energy storage
Distributed generation is where our practice started. We design rooftop, ground-mount and storage systems through to utility interconnection approval.
Solar PV
NEC Art. 690 · 705Permit and interconnection plan sets for residential, commercial and utility-scale arrays.
- Design
- String sizing, wire & overcurrent, rapid shutdown, fire setbacks
- Interconnect
- Supply/load-side taps, point of interconnection, utility single-lines
- Deliverables
- Site plan, 3-line, calculations, placards, equipment sheets
Battery energy storage
NEC Art. 706 · NFPA 855Behind-the-meter and front-of-meter BESS, from feasibility studies to sealed construction drawings.
- Studies
- Sizing, tariff and dispatch feasibility, market revenue screening
- Design
- AC/DC coupling, MV interconnection, protection & controls
- Siting
- Separation, egress and fire-code layout
How a project runs
From intake to sealed set
- 01
Intake
Site, equipment and scope collected. Missing items are listed up front, not discovered late.
- 02
Code basis
We confirm the NEC edition, local amendments and utility requirements for the address.
- 03
Design
Calculations and drawings prepared to a consistent sheet standard.
- 04
Engineer review
A licensed engineer checks every sheet before anything is sealed.
- 05
Seal & support
Signed and sealed set delivered, with responses to AHJ and utility comments.
Licensure
Professional Engineer jurisdictions
PE sealing is available in the following 25 states and the District of Columbia.
Renertia LLC is a registered engineering firm in Georgia, Engineer Firm License No. PEF009010, issued by the Georgia State Board of Registration for Professional Engineers and Land Surveyors.
In the other jurisdictions listed, engineering services are provided by an individually licensed Professional Engineer, and firm registrations are added as each state approves them. Projects outside these jurisdictions can be designed for review and sealing by an engineer licensed there.
Partners
Our partner platforms
Renertia provides electrical engineering support to these platforms for solar, storage and building electrical work.
Rooftop and commercial solar PV and battery storage permit plan sets, ordered online.
mars-ess.com → MARSELECElectrical permit drawingsElectrical permit drawings for homes and commercial buildings, drawn to the adopted code.
mars-elec.com → MARSFLEETSSolar fleet monitoringWatches every inverter in a solar portfolio and gives each owner a private portal: availability, energy lost, performance and every fix.
marsfleets.com →Contact
Tell us about your project
Send the address, scope and schedule. We reply with the code basis, deliverables and a fixed-fee proposal.
- info [at] renertiaco [dot] com
- Phone
- (628) 666 · 6634
- Office
- Dunwoody Place, Atlanta, GA
We engineer electrical systems that perform quietly, safely and for the long term.