Wondering what each lane's machinery adds to your utility bill? Bowling pinsetter electricity consumption depends on the machine design, the hours your doors are open and the rate your utility charges, and the biggest swing comes from whether you run a free-fall or a string pinsetter. This guide explains where the power goes, what manufacturers claim about power consumption, and how to build a defensible estimate for your own bowling center.
How a Pinsetter Uses Electricity in a Bowling Alley
A pinsetter, called a pinspotter when it comes from AMF, is an automated mechanical device that resets the pins, returns the ball and clears fallen pins from the pin deck. Every one of those jobs is done by an electric motor, a gearbox, a cam or chain drive, or a solenoid, so a bowling alley's pinsetting machines are one of the largest continuous loads in the building, alongside HVAC, lighting and the ball-return blowers.
Unlike a refrigerator, a pinsetter does not draw a flat load. It idles between throws and spikes when the cycle starts, which is why a single nameplate rating tells you very little. What your meter records is the average of many short, heavy cycles and long quiet gaps.
The cycle that drives the load
When a ball enters the pit, the sweep bar is triggered, usually by an optical sensor. The table lowers, lifts the standing pins and the sweep bar clears the fallen ones, while the pin elevator carries pins from the pit up to storage for the next rack. At the same time the ball return lifts the ball away from the pins and sends it back to the bowler. Each of these steps starts a motor or a mechanism, and the cycle repeats once or twice per frame, per lane.
Why idle time matters
A machine whose drive stays energized between throws still adds to your pinsetter electricity use, even when nobody is bowling. Open play with three lanes in use and the rest idle can carry a real baseline if the other machines stay powered and lit. Switching idle lanes off is the cheapest efficiency measure you have.
Free-Fall Pinsetters Compared With String Pinsetters
The two families of machine behave differently. Free-fall pinsetters, such as the Brunswick A series and GS series and the AMF 82-90 line, use a mechanical pin turret or table assembly with many rotating parts. A string pinsetter instead holds each pin on a cord and lifts it, so the unit has far fewer parts to turn and far less mass to move.
What free-fall machines draw
Brunswick and AMF free-fall designs were engineered in an era of cheap power. The Brunswick pin turret on A-series machines, the drive chains and the larger motors all need energy on every cycle. Murrey Bowling lists high consumption among the hidden costs of aging free-fall pinsetters, alongside breakdowns, expensive parts and downtime.
What string machines claim to save
Manufacturers publish their own figures, and none of these are independent measurements. US Bowling states that its 24 volt string machine has the lowest draw of any pinsetting machine and advertises a 90% reduction in labor, parts and power costs. Brunswick says its Boost ST cuts consumption by over 70% and has 80% fewer parts. A center owner quoted by US Bowling reported a 20-25 percent drop in the bill after pairing string machines with new LED lighting. Treat these as upper-end claims, then verify with your own meter data.
| Source | Claim | What it covers |
|---|
| US Bowling | Lowest draw of any pinsetting machine | 24 volt string pinsetter |
| US Bowling | 90% reduction in labor, parts and power costs | Combined operating costs |
| Brunswick | Smart energy savings of over 70% | Boost ST string pinsetter |
| Center owner quoted by US Bowling | 20-25% lower bill | String machines plus LED lighting |
How string pinsetters keep their draw low in service
A claim on a spec sheet only matters if it holds up on a busy league night, so it helps to understand what string pinsetters do between throws. Self-detangling routines run only when a cord needs attention, rather than as a fixed part of every cycle, and a machine that does not time out calls less often for a technician walking the pit with the drives running. Brunswick describes a cloud-enabled controller that pushes software updates and reports errors to a staff app, which gives you a way to see which machines are cycling more than they should. Those same alerts help you catch a jammed or dragging unit before it burns current for a whole evening.
The link to your bill is practical. Machines that stop less and restart less waste less energy, and a controller that can park idle lanes lowers the baseline you pay for between games. If you already run an automatic scoring package, ask whether the same system can power down pinsetters on lanes that have not been assigned a game; some vendors link the two so that an unused lane draws almost nothing. Compared with older free-fall units that stayed energized all evening, string pinsetters that sleep when idle give you savings that never show up in a nameplate rating, yet they are visible on a logging meter. When you compare quotes, ask each vendor how its string pinsetters behave at idle and whether the scoring software controls that behavior.
Why the Electrical Consumption of a String Machine Is Lower
The electrical consumption gap comes from engineering choices rather than a single trick, and three of them stand out. For comparison, see how many watts does a bread maker use.
Fewer moving parts
Brunswick says Boost ST has 80% fewer parts, and US Bowling describes less than 80 moving parts in its machine. Every part that does not turn is a part that does not need a motor, a bearing or a lubricant. Fewer moving parts also mean fewer worn components, which is why the same designs promise lower repair bills.
Drive electronics
US Bowling's electrical box is a single phase to three phase system built around a Siemens converter. According to the company, it eliminates the start switches, capacitors and relays that older machines used to get their motors turning. A converter that ramps a motor up gently avoids the large starting current of an across-the-line start, and it removes components that can fail. The same control box is described as fully serviceable by your own technician.
Single phase and three phase supply
Many older centers were wired for three phase motors, and a modern string retrofit may reuse that supply or change it. Whether your building has single phase or three phase power affects starting current and any demand charge on your bill, so ask each vendor how its drive electronics handle the supply and what the electrician's scope will be.
Pin Deck Lighting and Pit Lights Add to Pinsetter Load
Lighting inside the machine is often overlooked when a center measures its power costs, yet it runs every hour the lanes are on.
Old fluorescent fixtures
US Bowling reports that its LED pit lights use 4 watts per lane versus 40 watts on the old T-12 fixture, and are rated at 50,000 hours of working life compared with 7,000 to 10,000 on T-12 lamps. A fluorescent tube also needs a ballast, and the incandescent bulbs that some centers still use for pin deck lighting are less efficient again. That is a ninety percent drop on each lane before you touch a single motor.
LED lighting upgrades
Because LED lighting has become the standard replacing fluorescent and incandescent sources, a lighting-only upgrade is the lowest-risk first step. It cuts load, heat in the pit and the labor of changing tubes. Whichever pin deck lighting system you choose, the electricity argument is simple: fewer watts for the same hours.
Estimating Your Bowling Pinsetter Electricity Consumption
You do not need a formal energy audit to get a useful number. Estimate annual energy first, then multiply by your tariff.
$$E_{year} = N \times P_{avg} \times H$$
$$Cost_{year} = E_{year} \times R$$
Here \(N\) is the number of machines, \(P_{avg}\) is the average draw in kilowatts across all open hours (not the nameplate peak), \(H\) is the annual hours the machines are powered, and \(R\) is your price per kilowatt-hour. The watts per lane figure on a lighting spec sheet converts the same way: divide by 1,000 to get kilowatts.
A worked example with assumed values
These inputs are assumptions chosen for illustration, not measured data, so replace them with your own. Take a 28-lane center whose machines are powered 3,900 hours a year, paying $0.134 per kilowatt-hour. Assume the free-fall machines average 0.45 kW each across open hours, and assume a string retrofit averages 35% of that, which is 0.1575 kW.
- Free-fall energy: 28 × 0.45 kW × 3,900 h = 49,140 kWh per year, or $6,584.76.
- String energy: 28 × 0.1575 kW × 3,900 h = 17,199 kWh per year, or $2,304.67.
- Difference: 31,941 kWh, or $4,280.09 per year.
- Pit lights: 28 lanes × 40 W × 3,900 h = 4,368 kWh falls to 437 kWh at 4 W, a further 3,931 kWh and about $526.78 saved.
Combining machines and lights gives $7,170.07 before and $2,363.20 after, so annual savings are $4,806.87 under these assumptions.
| Scenario (28 lanes, 3,900 h) | Annual energy | Annual cost at $0.134/kWh |
|---|
| Free-fall machines | 49,140 kWh | $6,584.76 |
| String machines (assumed 35% of load) | 17,199 kWh | $2,304.67 |
| Machine energy savings | 31,941 kWh | $4,280.09 |
| Pit lights, 40 W to 4 W | 3,931 kWh | $526.78 |
Sensitivity to your rate and hours
Pinsetter electricity consumption costs move with two inputs you control. At $0.09 per kWh the machine savings in the example fall to $2,874.69, and at $0.19 they rise to $6,068.79. Changing operating hours from 3,900 to 2,600 cuts the machine savings from 31,941 kWh to 21,294 kWh, or $2,853.40, while 5,200 hours raises them to $5,706.79. A center that runs late-night cosmic bowling gains more from efficiency than one that closes at nine.
Measuring Pinsetter Electric Usage in Your Own Center
A manufacturer's percentage is a starting point, but an electric bill shows only the whole building. To isolate the energy use of the machines, collect data directly. For comparison, see butter maker power consumption.
Metering one pair of lanes
Ask an electrician to clamp a logging meter on the feed for one pair of lanes for a full week that includes league night and open play. Record kWh, peak kW and idle draw. Multiply by the number of pairs and compare against your utility bills to check that the estimate is sensible.
Reading the utility bill
Look at the demand charge as well as the energy charge. A center with many motors starting at once can pay for peak kilowatts as well as kilowatt-hours, and a soft-start drive lowers that peak. Compare your winter and summer months, because air conditioning masks machine load in July, and use your logged lane data to isolate the pinsetter share of kWh and kW from the whole-building bill.
Checklist for a fair comparison
- Meter the pinsetter feeds before and after any change, over the same weeks and the same league schedule.
- Record the number of lanes in service and the hours the machines were powered.
- Note whether lighting changed at the same time, since it distorts the machine kWh comparison.
- Keep the tariff constant, or compare in kWh rather than dollars.
Automatic Pinsetters From AMF and Brunswick: Design and Power Demand
Pins were once set by pin boys, and the first mechanical pinsetter was sold to AMF in 1941. From the 1950s onward two makers dominated automatic pinsetters in the ten-pin game, and each family of machines has its own appetite for current. Knowing which one sits behind your pins tells you what kind of load to expect.
AMF pinspotters
The AMF pinspotter line, including the well-known 82-70 and 82-90 models, kept pins in a table-and-elevator arrangement that relies on cams and a long run of mechanical linkage. AMF machines are still found in many an older bowling alley, and their drives were built for durability, not for low power. When you hear a veteran mechanic call a machine a pinspotter, they almost always mean one of these AMF units, and the AMF name has become shorthand for the whole generation of heavy cam-driven equipment.
Brunswick A series and GS series
Brunswick built the A series with its characteristic cage-like rotating pin turret, then later the GS series, a different free-fall design. Brunswick's A-2 and GS machines moved the pins by gravity once the table released them, so the motors worked mainly on the lifting stages and the elevator, which is where most of their draw comes from. Between Brunswick and AMF, most North American alleys run machines that are decades old, and the reliability of those old drives is the other half of the power story: a tired motor draws more for the same work.
String-type and other designs
String machines hang each pin from a cord so that the pin is lifted and lowered rather than carried by a turret. Control electronics now handle strings that detangle themselves, and the lighter moving load is what lowers the draw. Candlepin, five-pin and duckpin games use smaller machines, so the figures in this article apply to ten-pin bowling only.
Where the Pins, Pit and Ball Return Draw Power
Looking at a machine part by part helps you decide where an efficiency measure can actually reduce a bill. The following list traces the work that the electricity does on one cycle.
Pins and the elevator
Ten pins weigh around three and a half pounds each, and at the end of every frame the machine must collect the fallen pins, lift them and stack them for the next rack. The pins travel on the pin elevator, and the elevator motor does the heaviest lifting. In a free-fall design that motor runs every cycle, while in a string unit only the standing pins are raised, so fewer pins move and the work per frame drops. Pins left standing mean less to lift, so the elevator load varies a little with how many pins fall.
Ball lift and ball return
The ball return uses a lift to separate the ball from the pins, then a track below the lane carries it back to the ball return unit. In many centers the ball return blowers are a separate load from the pinsetter motors but share the same lane feed, so a metered reading mixes both. The kickbacks, the side panels that stop pins and make them rebound, are passive and add no electrical load.
Wear, friction and wasted watts
Worn bearings, dry chains and loose belts raise friction, and friction becomes extra amperage. Wear is therefore an electrical problem and a mechanical one: a drive that is out of adjustment can draw more current while delivering the same work. Many repairs that look purely mechanical, such as realigning a cam, also bring the load back down, so keep a log of when each machine was last serviced and compare it with its metered draw.
Tracking Energy Efficiency as an Investment
Because the equipment is expensive and long-lived, efficiency belongs in the same conversation as capital planning. A sensible investment rule is to rank projects by cost per kilowatt-hour saved, then add the non-electrical benefits afterwards.
Ranking projects by return
Lighting usually comes first because it costs little per lane and pays back quickly. Next come drive and control improvements, then full machine replacement. A conversion that returns its cost slowly on electricity alone can still be justified by energy efficiency together with uptime and parts, but you should be honest about which benefit is paying the bill.
Why USBC approval shapes the decision
The USBC certifies equipment for sanctioned play, so a string pinsetter can serve league bowlers only once approved. If your center depends on leagues, treat approval as a gate before you compare power figures, because a cheaper machine your league cannot use saves nothing. Murrey and US Bowling both state that their string machines are USBC approved, and the certification list is public.
What bowlers actually notice
Efficiency changes do not alter the pin action your bowlers and customers see, so they should not cost you league nights; reliability is the visible benefit, since fewer stoppages mean fewer complaints at the bowling alley counter.
Common Mistakes When Comparing Pinsetter Power Figures
Numbers from different sources are rarely comparable, and a few errors recur.
Mixing peak and average draw
A nameplate rating is the maximum a motor can pull, not what it draws across an evening. Multiplying it by operating hours overstates energy several times over. Always use an average from a logging meter, which is why the estimation formula above uses \(P_{avg}\).
Ignoring the rest of the building
The pinsetters share the building with pro shop equipment, a kitchen, a bar and air conditioning. If your savings claim is larger than the pinsetter share of the bill, something is wrong. Compare the claim against the pinsetter share of your monthly kWh, using a sub-meter where you can.
Forgetting maintenance on the new machines
A string pinsetter is not maintenance-free in any absolute sense. Strings wear and eventually need replacement, and US Bowling says it supplies at least five years of cord with each machine. Include spare cord stock and the cost of a service visit when you compare lifetime cost, not only the electricity line.
Operating Costs Beyond the Electric Meter
Power is only one line in the budget. Murrey Bowling frames the case for string machines around operating costs as a whole, which is the right way to judge any upgrade.
Maintenance costs and downtime
Older free-fall machines need continuous preventive attention, and maintenance costs rise with their age. Downtime is the hidden multiplier: a stopped lane earns nothing while it can still draw a little power, so reliability and electricity are tied together.
Labor and parts
Fewer parts mean fewer replacements and less staff time, but these lower costs are separate from the electricity argument, so keep them on their own line to avoid counting the same savings twice.
Long-term savings and profitability
An upgrade requires capital, so the useful question is the payback period: the upfront price divided by combined annual savings. Murrey describes long-term savings from lower repair bills, reduced energy costs and fewer service interruptions. In the example above, electricity alone saves $4,806.87 a year, so it would take a long time to repay a full machine replacement, which is why profitability depends on every savings category together, not on the meter alone.
Deciding Whether to Upgrade Your Pinsetting Machines
Before you ask for quotes, work through a short decision sequence. Related: electric kettle electricity consumption.
Questions to ask a vendor
- What is the measured average draw per machine, not the peak nameplate, and who measured it?
- Does the quote include the electrical box and any change of supply voltage?
- Is the machine USBC certified for league and tournament play, and is it compatible with your scoring system?
- What is the warranty period and what does a service call cost?
Certification and compatibility
Brunswick states that Boost ST is PBA approved and says it works with any scoring system, so confirm that the model you are quoted holds the certification your league play needs and fits your current setup.
Retrofit versus replacement
If your machines are in good condition, a cheaper path is to upgrade lighting first, cut idle hours and service the drives, then revisit the machine question. Newer machines can be retrofitted into an existing center, but the savings depend on what you replace, so do the arithmetic with your own meter data rather than a brochure percentage.
Environmental Footprint and Everyday Savings Tips
Using less electricity also shrinks the environmental footprint of a bowling center, a point that Murrey makes in favor of string machines. The figure depends on your regional grid, so convert kWh using your utility's published emissions factor instead of a generic number.
Low-cost habits that cut your load
- Power down unused lanes during weekday afternoons and between league blocks.
- Switch pin deck lighting to a lower-intensity scene when the center is quiet.
- Keep the pit clean, since jams make machines cycle more than necessary.
- Schedule maintenance for drives, belts and lubrication, because a dragging motor draws extra current.
Synthetic lanes and the wider modernization picture
Murrey notes that pairing new string pinsetters with synthetic lanes, upgraded scoring and LED lighting modernizes a traditional alley; the electricity benefit is that every item in the package draws less than what it replaces.