How can a golf club lower its peak energy use?

By letting its three big loads take turns: buggy charging, irrigation pumps and the clubhouse. A golf club rarely needs a heavier connection, only a plan for who runs when. A business battery helps in two cases. The solar roof injects at midday while pumps and chargers run at night, or a new load exceeds the connection.

The cart shed roof is full of solar panels, but at six the fleet comes back, every charger goes on and the kitchen fires up. Then the greenkeeper asks for a bigger irrigation pump, and the grid operator says the connection is too small.

A plant nursery in Jabbeke faced the same wall with a new irrigation pump, and kept its street connection.

What uses the most energy at a golf club?

At most golf clubs, three groups of loads set the energy bill: the buggy fleet, the irrigation system and the clubhouse.

A course is a sports club, a restaurant, a small vehicle fleet and a water company on one meter. If you run a football or hockey club, our article on a battery for a sports club is the closer match.

When do buggies, pumps and the clubhouse meet on the same quarter-hour?

At the end of the afternoon and in the evening: the fleet comes back, the kitchen runs and an irrigation cycle may start. That quarter-hour sets the monthly peak.

What the board rarely sees is that timing. Each load on its own is fine; the problem is the quarter-hour in which they all start together. The obvious fixes, a heavier connection or a battery sized for the worst evening, are both expensive. Starting the kitchen before the rush often helps without any battery.

The panels on the cart shed produce while the buggies are out, and when the buggies come back the sun is low. The roof and the fleet miss each other by a few hours every day. That gap is what a battery bridges: from noon to evening, not from summer to winter.

On a sunny, dry day the panels produce most and the course needs the most water for irrigation. At a golf club the seasons of high energy use and high solar production largely overlap. A club with floodlights is the opposite: it uses most power in the dark winter months.

How do you charge a golf buggy fleet without a new peak?

Charge the fleet in groups, not all at once. The fleet needs its energy by the next morning, not at six in the evening.

Plugging in every buggy on return is easy for the staff. But it turns thirty or forty chargers into one large load at the worst moment. Clubs can review when charging takes place and schedule it for cheaper or lower-demand periods, Smarter Technologies notes.

The energy is the same in both cases: about 160 kWh. In this example, grouping the chargers removes about 30 kW from the evening peak without buying anything. Start from the energy per night and the hours available; a bigger connection is often not needed.

If the fleet still uses lead-acid packs, ask how they wear: lead-acid batteries do not like being left half charged. Our article on charging forklifts on lithium and solar explains the difference between lead-acid and lithium for vehicle fleets.

Can the irrigation pump run on solar power instead of at night?

Partly. The pump that fills the pond or storage tank can run at midday on solar power. The pump that sprays the course usually keeps its night cycle, and the water in the pond becomes your cheapest battery.

Many courses have two steps: a well or supply pump fills a pond or tank, and an irrigation pump sends the water to the sprinklers. The first step can move to the hours when the panels produce. The second stays at night or early morning, because players are on the course during the day.

Store water at noon, spray it at night. In Wingene a full battery sends surplus to a boiler, and in Tielt smart control does the same.

A large pump that starts directly on the grid draws a high current for a moment. A variable frequency drive adjusts the pump speed to the flow or pressure needed, rather than running at a fixed speed, Smarter Technologies explains. That makes the start softer and the running cheaper.

For field irrigation far from any connection, read our article on a solar irrigation pump with or without a battery.

Do the buggies and the pump raise the capacity tariff of a golf club?

In Flanders, yes: the highest quarter-hour of each month is billed through the capacity tariff, whatever caused it. A pump start on top of forty chargers and a busy kitchen can set that peak.

Fluvius measures your average power per quarter of an hour, and the highest quarter-hour of the month is your monthly peak. On a small connection you pay on the average of the monthly peaks over twelve months, with a minimum of 2.5 kW. Clubs on a larger connection with peak metering pay on their monthly peak as well.

The 2026 average is about 53.39 euro per kW per year excl. VAT, according to the Vlaamse Nutsregulator. Every kW you keep off the evening peak, every month, is worth about 53 euro a year. So 30 kW less is worth about 1,600 euro a year in Flanders (30 x 53.39), before any battery.

Our guide on how to read and lower your business peak demand shows how to find the quarter-hour that sets it. For the formula, read how the capacity tariff for businesses is calculated.

In Wallonia, the time of day matters more than the peak on the standard low-voltage tariff. Since 2026 the bi-hourly low-voltage tariff has an extra off-peak period from 11:00 to 17:00 every day, according to the CWaPE. The off-peak hours are 11:00 to 17:00 and 22:00 to 07:00; the evening from 17:00 to 22:00 is billed at the full rate.

A night irrigation cycle and buggies charged after 22:00 fall into off-peak hours. The evening kitchen falls into the expensive block, and a battery charged at midday can cover it. Professional sites with peak metering do pay a capacity term per kW.

In Brussels, Sibelga applies its own tariff structure.

When does a battery make sense at a golf club?

A battery makes sense when the solar roof injects a lot at midday and the club needs power in the evening and at night.

The price gap explains why battery storage helps a golf course. Inagro puts the 2026 purchase price for a low-voltage business at about 250 euro per MWh all-in, and injection at about 20 euro per MWh. Roughly speaking, every kWh the roof injects at noon earns a tenth of what the night cycle costs to buy.

Our guide on whether solar panels still pay off for a business runs that calculation in detail. Our high-power battery systems for businesses come with monitoring, control and optimisation included. That control decides when the chargers, the pump and the battery run, and keeps grid offtake under a limit you choose.

What if the connection is too small for a new pump, chargers or a heat pump?

Then a battery can deliver the extra power that the cable cannot, so the club keeps its present connection. Clubs often hit the limit through one project: an electric fleet, member charging points, a clubhouse heat pump or a larger irrigation pump.

The grid operator then asks for a heavier connection, sometimes with long waiting times where the grid is congested. A semi off grid system uses the existing connection as a charger and lets the battery cover the peaks.

The plant nursery in Jabbeke had a 3 x 400 V 32 A connection, and a new irrigation pump needed a heavier one. The grid operator proposed medium voltage at a high price.

With a semi off-grid system of 45 kVA and 92.4 kWh, the nursery kept its street connection. Frequency drives keep the heaviest pumps running smoothly.

For the general case, read our article on more power without a heavier connection. For charging points on a business site, see chargers without a heavier connection. If the grid operator refused a reinforcement, our article on grid congestion and a refused connection lists the options.