Electrical Engineering Design
Safe, Reliable, Resilient
Power You Can Trust
Behind those three words is disciplined engineering. We design electrical systems that keep people safe — code-compliant power, lighting, and life-safety that run reliably from the service entrance to the last receptacle.
They stay resilient under load, with redundancy and standby power wherever downtime isn’t an option. Every set is load-calculated, trade-coordinated, and QA-reviewed, then delivered as clean, permit-ready documents you can build on with confidence.
Power Distribution Design
From the incoming utility service to the final branch circuit, CoreX engineers design complete power distribution systems that are properly sized, coordinated, documented in accordance with NEC and local codes, and fully integrated with the mechanical and plumbing disciplines for a coordinated, conflict-free design.
- Dry utility coordination for new service
- Electrical room layout
- Load calculations and demand analysis
- Building power system design and capacity planning (LV & MV)
- Single-line diagrams — power and grounding
- Grounding system design
- Feeder and branch circuit sizing
- Electrical equipment sizing and specifications — service entrance, switchgear, distribution boards, transformers & panels
Service & Utility Planning
Before a building has a panel schedule it needs a service — sized, coordinated with the utility, and submitted without surprises.
- Utility service coordination and applications
- Available-capacity and service-capacity studies
- Service-entrance sizing and metering layout
- Primary vs. secondary service evaluation
- Load-letter and utility submittal support
Lighting Design
Great lighting is felt, not noticed. CoreX designs interior and exterior systems that hit IES illumination levels, satisfy energy and dark-sky codes, and keep energy use low — balancing comfort, aesthetics, and performance across every space.
- Interior and exterior lighting layout design
- Lighting fixture selection and schedule
- Photometric analysis
- Lighting controls
- Energy code compliance
- Light pollution and dark sky compliance
- Existing lighting retrofit and LED conversion design
Emergency & Standby Power
When normal power fails, critical systems still have to keep running. CoreX designs emergency and standby power — generators, ATS, inverters, and UPS — engineered to NEC 700/701/702 so the right loads stay energized when it matters most.
- Backup power equipment sizing and specifications — generator, ATS, inverter & UPS
- Emergency and standby power distribution design
- Critical load analysis and backup power planning
- Emergency, legally required, and optional standby system design (NEC 700, 701 & 702)
Building & Life Safety
Protecting both the building and the people inside it, CoreX designs the systems that respond when something goes wrong — lightning and surge protection for the structure and equipment, and fire alarm and emergency egress lighting engineered to NFPA and IBC for safe, code-compliant evacuation.
- Lightning protection system design (NFPA 780)
- Fire alarm system design & device layout
- Egress, emergency & exit lighting (NFPA 101)
Power System Studies
When a fault hits, lives are on the line — not just gear. CoreX delivers power system studies — load flow, short-circuit, selective coordination, and arc-flash to NFPA 70E — modeled in SKM PTW32 or ETAP to protect personnel, verify equipment duty, and keep distribution selective and safe, on greenfield and brownfield projects (brownfield studies depend on client-supplied existing-equipment and utility fault-current data).
- Load flow studies
- Short-circuit studies
- Protective device / selective coordination
- Arc-flash analysis (NFPA 70E, IEEE 1584)
- Motor starting analysis
- Equipment duty evaluation
EV & Solar-Ready Infrastructure
CoreX engineers EV charging infrastructure and solar-ready electrical provisions that prepare buildings for an electrified future — sizing service and distribution for added load, managing demand, and reserving the capacity and pathways renewables need, without costly rework later.
- EV charging infrastructure (Level 2 & DC fast charging)
- Service & panel capacity sizing for added load
- Load management & demand control
- Conduit pathways & stub-outs for future expansion
- Solar-ready provisions: reserved capacity & interconnection points
- EV load aggregation & metering
Independent Review & Construction Support
Beyond design, CoreX brings independent review and construction-phase support to your projects — peer review of electrical documents, plan review support for city projects, and construction administration that keeps designs accurate, code-compliant, and buildable from permit through construction.
- Peer review of electrical design documents
- Plan review support for city projects
- Construction administration support (RFIs, submittals & shop-drawing review)
- Code compliance and constructability review
- Value engineering & cost-reduction review
- Plan-check comment response and resubmittal
For municipal plan-review work, CoreX supports a client-side reviewer holding the jurisdiction-required credential — such as an ICC-certified Electrical Plans Examiner or a licensed PE — who issues the official determination.
Industry-leading software in experienced hands — the combination behind dependable electrical engineering.
Quick answers about how we deliver electrical design support.
We engineer electrical systems across every sector we serve — commercial and office, healthcare and medical, residential and multi-family, education and institutional, industrial and manufacturing, data centers and mission-critical, laboratories, automotive and EV sites, hospitality and hotels, restaurants and food service, retail and mixed-use, and government and public facilities — on new construction, renovations, tenant improvements, and infrastructure upgrades at any scale.
Yes. Many of our clients are consulting firms and architects who bring us in for overflow or full-scope electrical work. We produce to your templates, title blocks, and standards so the set reads as your own, and we coordinate directly with your project leads throughout.
Power plans, lighting plans, photometric calculations, panel schedules, single-line and riser diagrams, load calculations, fixture schedules, detail drawings and notes, and manufacturer cut sheets for the project’s specified fixtures — coordinated with mechanical and plumbing trades and the serving utility, and delivered in your CAD or Revit standards as a permit-ready set.
Yes. We produce photometric calculations in AGi32 and Visual Lighting, select fixtures to meet IES illumination levels, and design code-compliant lighting controls — occupancy sensors, daylighting, and dimming — per IECC and local energy codes.
Yes. We design generator and automatic transfer switch systems, emergency distribution, egress and exit lighting, and fire alarm device layouts in compliance with NEC, NFPA 101, and IBC — coordinated with your AHJ’s specific requirements.
Yes. We deliver building power system studies — load flow, short-circuit, selective coordination, and arc-flash analysis in SKM PTW32 or ETAP — for both greenfield and brownfield projects. For brownfield work, partnering firms provide the required existing-site data (equipment ratings, circuit breaker ratings, feeder and conductor details, utility fault current, and as-installed conditions) so we can model accurately and hand back a quality, code-compliant engineered solution.
Yes. We design EV charging infrastructure — service and panel capacity, branch circuits, load management, and conduit pathways for Level 2 and DC fast charging — and we engineer solar-ready provisions such as reserved panel space, interconnection points, and conduit rough-ins, positioning the building for future PV without rework.
We design to the NEC (NFPA 70) along with NFPA 101, IBC, and IECC, and we adapt to the amendments and energy codes — including Title 24 — of the specific state and AHJ your project falls under.
Electrical never stands alone. We model in BIM alongside mechanical, plumbing, and structure, resolving conflicts in equipment placement, conduit routing, and connected loads while the design is still on screen — so what we deliver is already coordinated, not a source of field RFIs.
A project kickoff usually comes down to four things: the architectural backgrounds (CAD or Revit), the building program and the code edition in force, the utility service or available capacity, and connected-load data from the mechanical and plumbing scope. With those in hand up front, we move quickly and with fewer assumptions to revisit later.
CoreX works as a design support partner: we produce the complete calculations and construction documents, and the licensed engineer of record for your project reviews and seals the final set. You stay fully in control of the engineering responsibility while we carry the production load.
Yes — we respond to electrical RFIs, review submittals and shop drawings against the design intent, and issue clarification sketches and revisions as construction progresses.
Sectors we design Electrical for
Have a Project in Mind?
Core Engineering. X-pert Execution.
Tell us your scope and timeline — we’ll confirm deliverables and milestones, usually within one business day.