Power over Ethernet and AI in Smart Buildings Are Transforming Electrical Contractor Installations

At first glance, electrical contractors might understandably be cautious when technologies such as Power over Ethernet (PoE) promise “less wiring.”  PoE may appear to threaten traditional electrical installations. In reality, though, PoE smart building design represents an opportunity for electricians and electrical contractors to expand services, reduce project friction, and deliver higher-value installations.

What is a PoE Smart Building?

Smart buildings use connected technologies such as the Internet of Things (IoT) and artificial intelligence (AI) to automatically monitor, control, and optimize HVAC, lighting, and security, creating an energy-efficient and sustainable environment. According to Grandview Research, North America has the largest share of the global smart building market, accounting for 74% of buildings and 35% of revenue. The substantial growth is projected to continue through 2033 at a compound annual growth rate (CAGR) of 18.9%.

PoE technology plays a significant role in smart buildings because it delivers both power and data over a single Ethernet cable. It can manage power to connected devices, reducing operational cost and complexity. As buildings add hundreds or even thousands of sensors, cameras, access control readers, and lighting fixtures, running dedicated electrical circuits (in other words, running cables) to every endpoint quickly becomes cost-prohibitive. 

With PoE, devices connect to power sourcing equipment (PSE), which supplies low-voltage DC power and network connectivity through standard Ethernet cabling. This approach reduces infrastructure complexity, shortens installation timelines, and simplifies future expansion.

Artificial intelligence uses the data from the IoT devices to adjust temperatures and lighting in real time. It uses occupancy sensors to lower the temperature and turn off lights when no one is in a room. Access control systems can notify the monitoring system when employees clock in, so AI can turn on lights, increase the temperature, and raise window shades in their offices before they arrive. These minor adjustments can save companies up to 35% on HVAC energy costs.

How Does PoE Technology Work?

How much power or data can be sent depends on the Ethernet cables. Most new installations use Category 5e or 6a cables that can carry up to 100W of power. PoE switches like Versa’s  D62-084-MX-DCP switch act as power sources for PoE devices. They plug into an electrical outlet and use Ethernet cables to connect to devices. The maximum length of an Ethernet cable is 100 meters from the power source to the device, although extenders are available to lengthen the cable run. The number of devices depends on the switch’s power capacity and the devices’ power demand.

Integrating AI into PoE Smart Buildings

AI systems rely on fast, reliable data from every connected endpoint. AI solutions process gigabytes of data received from building systems such as lighting, security, heating, and cooling to optimize operations. The hundreds of endpoints, such as sensors, must continuously transmit the data to a centralized system for processing. Traditional wiring approaches often require separate power and data connections, increasing material costs and complicating installation. PoE eliminates this redundancy by delivering both over a single cable.

PoE technology transmits power and data through a single Ethernet cable. PoE-enabled connections can send gigabits of data in seconds, ensuring that information is received quickly for real-time decisions. Fewer wires and cables reduce maintenance costs and minimize troubleshooting times.

Smart Building Trends Driving PoE Adoption

Based on market projections, smart buildings will dominate the commercial property market by 2033. Older structures will be upgraded to support the interconnectivity for AI-based systems. A well-known example is The Edge in Amsterdam, often labeled the most sustainable office building in the world. Its design slashed energy use by 70% compared to conventional office buildings. Other smart buildings have achieved energy savings from 15% to 30%. As these performance benchmarks become standard, traditional construction methods that lack PoE and intelligent controls will become less competitive.

How PoE Can Enhance the Electrician’s Value

Construction projects typically schedule electricians to wire a floor or building according to blueprints. They may indicate drops for PoE power sources and possibly include locations of PoE devices. No matter how well-designed or planned, change orders are inevitable, requiring electricians to return to a job. 

Suppose the change order required the electrician to add a power drop for a PoE lighting system. The project has been delayed two days because no electrician was available. Now that the drop is complete, the project manager learns that the lighting system cannot be installed for another three days due to a lack of manpower, delaying the project by a week.

When electricians can install both the power infrastructure and the PoE system, those delays disappear.  General contractors or project managers increasingly favor electricians who can provide end-to-end installation rather than juggling schedules for electricians and PoE-qualified installers that may impact their timelines.

Expanding Your Skill Set for PoE Smart Building Projects

Understanding PoE technology requires knowledge in the following areas:

PoE Standards and Network Fundamentals

The Institute of Electrical and Electronics Engineers (IEEE) maintains PoE standards. IEEE 802.3 standards define how the cable wires are used to send power and data.  The most recent standard (802.3bt) supports devices that require 90W to 100W of power. Part of PoE deployment is understanding power budgets to ensure the PSE has sufficient capacity to power the powered devices. Networking basics, such as TCP/IP addressing and network cabling, are required to ensure proper use of Ethernet cables.

PoE Installation, Testing, and System Design Skills

Hands-on training can help with cable certification, power testing, and troubleshooting power drops and compatibility issues. Learning how to design systems and plan for future growth allows contractors to combine traditional electrical expertise with modern PoE networked infrastructure. Spending time learning about switches and devices from companies like Versa can help identify the appropriate equipment for any installation.

Training and Certification Pathways

Manufacturers and suppliers may offer training on their products. The Ethernet Alliance offers product certifications to help familiarize users with the technology. Professional courses, like those on Udemy, are offered for comprehensive knowledge. 

Future-Proofing Electrical Contractor Services

Electricians who invest in PoE courses, training, and certifications can offer clients a comprehensive assessment of traditional wiring and PoE deployments to achieve optimal results and long-term cost savings. Instead of viewing PoE as a threat, they can turn an obstacle to future growth into an opportunity for ongoing expansion. 

As commercial buildings become more intelligent, efficient, and data-driven, contractors who understand PoE and AI-enabled systems are better positioned to support modern construction and retrofit projects while strengthening their role on the job site.

Supporting PoE Smart Building Deployments with Versa Technology

Versa Technology is a leading supplier of PoE devices, such as its D62-084-MX-DCP industrial-grade L2 PRO PoE switch. With support for 12–48VDC input, it provides IEEE 802.3bt (90W) and IEEE 802.3at (30W) outputs to power high-performance PoE devices. For more information on PoE technology, check Versa’s blog or its support pages.