I manage procurement for a mid-sized manufacturing facility. When we decided to tackle a lighting retrofit last year—moving from aging T8 fluorescents to an ABB IoT-enabled LED system—I knew the stakes. Get it wrong, and we'd be looking at rework costs, extended downtime, and a blown annual budget. Get it right, and we'd cut energy costs by a projected 40%.
This 7-step checklist is what I built after comparing 6 vendors, reviewing 3 site assessments, and—yes—making one expensive mistake on the first try. If you're responsible for a similar commercial or industrial retrofit, this is the playbook I wish I'd had from day one.
Step 1: Audit Your Existing Setup (And Be Brutally Honest)
Before you talk to a single vendor, you need hard data on what you have. This isn't a walkthrough with a notepad. I'm talking about a full inventory: fixture types, ballast ages, control systems (if any), and—critically—the wiring diagram.
What to document:
- Fixture counts by zone (production floor, warehouse, office, loading dock)
- Current wattage per fixture (check the ballast label, don't guess)
- Hours of operation per zone (this drives payback calculations)
- Existing emergency lighting locations and their compliance status
- Age and condition of existing contactors and control wiring
Don't hold me to this, but our audit revealed 23% of our fixtures were already non-functional or flickering—something the maintenance team hadn't flagged. Finding that upfront changed the scope of our project significantly.
Step 2: Define Your 'Retrofit Package' — Not a One-Size-Fits-All
Here's where I hear people make a costly mistake. They ask vendors for a standard retrofit package. But a true ABB retrofit isn't a single SKU. It's a combination of:
- LED tubes or full fixture replacements (depending on existing hardware)
- Emergency lighting kits (if applicable)
- Lighting contactors (if you're tying into a larger control system)
- IoT connectivity modules (like ABB Ability edge devices)
- Wiring for sensors and controls
I wish I had tracked the number of scope changes more carefully from the start. The time we spent back-and-forth on 'what exactly is included' was our biggest project delay. My advice: Write a very specific scope of work before sending out RFQs. Include a simple yes/no checklist for each zone.
Step 3: Get a Proper Site Assessment (Skip the Phone Quote)
This was my expensive mistake. Our first vendor quoted us based on floor plans alone. They assumed all fixtures were the same. They weren't. A third of our high-bay area had a different mounting height than what was on the old blueprints.
You need a physical site visit. Your ABB integrator or certified lighting specialist should walk every zone, verify mounting heights, check for hazardous locations (Class I/II/III if you're in manufacturing), and test emergency circuits.
The cheapest quote is rarely the lowest total cost if it doesn't include a site assessment.
Step 4: Compare TCO, Not Unit Price
The question isn't 'how much per fixture?' It's 'what is the total cost of ownership over 5 years?'
When we compared vendors, the numbers looked like this:
- Vendor A: $12,000 for fixtures only. They didn't include the contactor upgrade we needed, and they didn't quote shipping.
- Vendor B: $14,500 for a full package including ABB Ability sensors and installation labor. But they had a $0.08/kWh energy rate assumption that was lower than our actual rate.
- Vendor C: $15,200 for everything. Obvious upfront. (Should mention: they included a 2-year labor warranty on the IoT controls, which added real value.)
I don't have hard data on industry-wide pricing games, but based on our experience, 40% of the 'savings' in a lowball bid get eaten up by change orders and hidden fees. Create a TCO spreadsheet with columns for: labor, materials, shipping, controls integration, commissioning, and projected energy savings (with a conservative buffer).
Step 5: Verify Emergency Lighting and Contactor Requirements
This is the step most procurement folks skip, and it's the one that can shut down your project if you get it wrong.
Your emergency lighting system likely needs to be completely independent from the general lighting. That means separate wiring, separate control circuits, and—often—a separate lighting contactor. If your retrofit ties the emergency system into a new controlled circuit without proper UL924-compliant devices, you're in non-compliance.
Check your local electrical code. (I'm not an electrician, so verify this with your project manager.) In our case, we needed a specific ABB contactor model for the emergency circuit that was different from the one for the general lighting. Catching this in the planning phase saved us a week of rework.
Step 6: Plan for the IoT Integration (Or Don't—Yet)
You don't have to do the IoT control layer immediately. We decided to wire all the new LED fixtures with the cabling for occupancy sensors and daylight harvesting, but we only activated 30% of them in Phase 1. The rest are 'dark conduit'—ready for future activation.
This approach saved us $4,200 in upfront hardware costs while keeping the option open to scale when the budget allows. If you're cost-sensitive, consider a phased rollout of the ABB Ability platform. The hardware is future-proofed anyway.
Step 7: Commission, Test, and Document Everything
The project isn't done when the last fixture is installed. You need a full commissioning process:
- Verify all fixtures are at correct light levels (use a lux meter, don't guess)
- Test emergency lighting function (and log it for your compliance records)
- Confirm contactors and controls are communicating with the IoT platform
- Get a punch list walkthrough with the contractor
- Document the as-built wiring diagram for your maintenance team
We skipped the final walkthrough on one zone—rushing to get back to production. That zone had a 12% failure rate on the emergency lights during our first test. A 30-minute walkthrough would have caught it. 5 minutes of verification beats 5 days of correction.
Final Check: What's Your Red Line?
One thing I've learned: say no to 'guaranteed' energy savings without a site-specific calculation. Every facility is different. A true ABB retrofit with comprehensive site assessment and phased controls will deliver real results, but it's not a generic promise.
Prices as of January 2025. Actual costs vary by site complexity, local labor rates, and fixture specifications. Always get three written quotes with a detailed scope of work.