Cutting energy costs with LED lighting in our packing houses

For fresh produce companies, the packing house is where the economics of farming finally meet the expectations of retailers. It is where fruit is graded, cooled, labelled, and loaded, and where a single shift of avoidable energy waste can quietly erode margins that took a full season to build. Across our operations, we have been looking for practical ways to shrink that waste, and one of the most consistent wins has come from replacing high-bay fluorescent and metal halide fittings with purpose-built LED lighting in our packing facilities.

Australia sits at the sharper end of this conversation. Wholesale electricity prices in states like Queensland and New South Wales have climbed well above the OECD average over the past decade, and fresh produce suppliers serving chains such as Coles and Woolworths operate on tight cost pass-through agreements. Anything that lowers the kilowatt-hour bill without compromising product quality is worth doing, and that is the lens through which we approached our lighting programme.

Why packing houses became the priority

Packing houses run on long hours, often sixteen to twenty hours a day during peak harvest, and they depend on bright, uniform light to keep grading lines accurate and safe. Our older fluorescent tubes and metal halide high-bays were consuming a disproportionate share of each facility's electricity, in some cases more than thirty per cent of the total load once cold rooms, conveyors and refrigeration were added together. They were also failing more often than expected, which meant paying for both the replacement lamps and the labour to install them at height.

We chose to start with lighting for three reasons. First, the payback arithmetic was already favourable, so the savings could be banked rather than promised. Second, the work could be staged around the harvest calendar, avoiding disruption to throughput. Third, lighting upgrades pair well with other operational improvements, from better light placement for optical sorters to cleaner aisles for food safety audits.

How industrial LED systems outperform legacy fixtures

The fittings we evaluated were not the same as the LEDs sold for office ceilings. Packing house luminaires need to resist moisture, dust and the regular pressure-wash routines that come with fresh produce handling. We specified IP65-rated housings, shatter-resistant diffusers, and colour rendering indices above eighty so that graders could judge the true appearance of bananas, pineapples and melons as they moved along the line.

Performance gains came from several directions at once. LED high-bays convert a much higher share of incoming electricity into visible light rather than heat, which meant we could use fewer fixtures to reach the same lux levels on the sorting belt. They also reach full brightness instantly, removing the warm-up delays that used to force staff to keep metal halide lamps burning through breaks. Combined with daylight harvesting sensors near loading docks and motion controls in low-traffic areas, the system runs only as brightly as each task actually needs.

Measuring kilowatt-hour savings across the network

Once the first facility was retrofitted, we tracked the meter data carefully so that the next project could be sized with confidence rather than guesswork. In our Queensland and New South Wales sites, the early results showed consumption falling by roughly fifty to sixty per cent on the lighting circuit alone, with payback periods inside four years even before maintenance savings were counted. Lamp replacement, which had been a recurring line item, almost disappeared from the maintenance budget.

We have started to see those numbers add up at the corporate level as well. The energy intensity of each packed carton has dropped, which strengthens our reporting under Australia's National Greenhouse and Energy Reporting framework and makes our position stronger when negotiating with retailers who are themselves under pressure to reduce scope three emissions. The savings are not abstract, either: they are visible on the monthly utility statements that arrive at each site.

Better light, safer produce, happier teams

Energy is only part of the story. The shift to LED has changed the working environment in ways that are harder to put on a spreadsheet but easy to see on the floor. Graders report that colour sorting is easier under the new fittings, which reduces the number of out-of-spec fruit that has to be reworked or sent to juice. Auditors have noted fewer shadows over the belts, and our incident logs show a small but consistent decline in trips and knocks during shift changeovers.

Comfort matters in a country where packing houses in places like Cairns and Innisfail can be hot and humid for much of the year. LEDs run cooler, which takes a little pressure off the ventilation system and makes the immediate workstation less stifling. Staff retention in these seasonal operations is a constant challenge, and small improvements in the daily experience of work help keep experienced sorters on the team.

Linking lighting upgrades to wider emissions goals

Lighting is one piece of a much larger sustainability picture, and we have been deliberate about connecting it to other programmes. Reduced energy demand means fewer Scope 1 and 2 emissions at each site, which feeds into our climate disclosures. The disposal pathway for old fluorescent tubes, which contain small amounts of mercury, is now cleaner too, because there are simply fewer of them to manage. We have also rolled the lighting work into the same planning cycle as our ban on open burning, since both initiatives depend on credible measurement and consistent execution across regions.

Infrastructure programmes far from our industry can still offer useful parallels. The LA River revitalisation has shown that energy and water efficiencies tend to come in clusters, not singletons, and that the cheapest savings are usually the ones that align with safety and quality goals rather than competing with them. Packing house lighting fits that pattern neatly.

What Australian growers and packers can take from this work

For other Australian fresh produce businesses considering a similar move, the practical starting point is a simple lighting audit. Count the fittings, note the wattage, and check how many hours each zone actually runs. Most operations find that the lighting share of the bill is larger than they expected, and that the highest-use zones are also the ones with the worst light quality for grading work.

It is also worth talking early to the local network operator about timing, since some regional feeders in Australia are already close to capacity at peak harvest and may need a heads-up before a large overnight retrofit. Engaging with the Fresh Del Monte sustainability site and its case studies can shorten the learning curve, and industry bodies often have preferred-supplier lists for IP65-rated fittings that have already been tested in tropical conditions.

This work is far from finished. The next step we are focused on is piloting smart controls at our Brisbane distribution site, where we will link the lighting system to occupancy data and real-time energy prices so that the building learns when to dim and when to push full output.