Storage · 5 Nov 2026

Cactos prints 16 MW and just under 65 MWh for OK's Danish station batteries, and OK's October page prints about 30 MW and about 60 MWh - 70 sites, a 520 kWh cabinet, and the box only stores power

On 3 November 2026 Cactos said it will supply the batteries OK installs at its stations in Denmark. The page prints about 16 MW and just under 65 MWh across 70 systems, with the first 20 in place before 2027. OK's release of 8 October prints about 30 MW and about 60 MWh for a minimum of 70 systems, and already names Cactos. A standard cabinet on that page is 520 kWh. The November photo line shows a 520 kWh, 260 kVA unit at Odense. No kroner price is printed. The batteries charge when wind and solar are plentiful. They do not make power.

A fuel and charging company is putting batteries on stations that already have a grid connection. The cabinets hold power when wind and solar are plentiful and the price is low. They do not make the wind or the sun. The supplier's November page and the customer's October page do not print the same tank.

On 3 November 2026 Cactos said it is starting a partnership to supply the batteries OK installs across Denmark. The page says the first units went in during October, with further units every month, and that the ambition is 70 battery units by the end of 2027. It says OK announced the network on 8 October: 70 systems, approximately 16 megawatts, and a capacity of just under 65 megawatt-hours, with the first 20 in place before 2027. Cactos supplies all of them. OK has approximately 1,100 locations where a connection is already in place, so the batteries use those connections instead of waiting for a new one.

What the November page says a cabinet does. It delivers extra power when many cars charge at once. It stores electricity when wind and solar are plentiful and prices are low, and discharges when prices are highest. It can also take part in reserve and flexibility markets. A photo line on the page shows a Cactos Mylo unit, 520 kWh and 260 kVA, being installed at OK's station in Odense. 260 kVA is not a kilowatt figure, and this note does not convert it. Cactos says it has delivered systems to more than 400 sites and more than 100 MWh in all. That is the company's book. It is not this order.

The customer's page is older, and the numbers are different. On 8 October 2026 OK said it will establish a minimum of 70 battery plants on its own locations over the coming years, where a connection and spare capacity already exist. When all of them are in, the combined power is about 30 MW and the combined capacity is about 60 MWh. Fully charged, that fleet covers almost 6,000 Danish households for a day, the release says. The first 20 are expected before the end of the year. The first two, on 8 October, are in Trustrup on Djursland and in Vester Lyby near Skive. The next are expected in Odense and Svendborg later in October. A standard plant is 520 kWh, which the release equates to about one day's electricity for 50 households. The release already names Cactos as the supplier, and says the batteries are produced in Europe. The November page's "starting a partnership" is a later print of a supplier the October page had already named.

The two tanks. About 60 MWh at about 30 MW is about two hours, by our arithmetic. Just under 65 MWh at 16 MW is a little over four hours, by our arithmetic. Neither page prints the hours. Seventy times 520 kWh is 36,400 kWh, or 36.4 MWh, by our arithmetic. That product is neither about 60 MWh nor just under 65 MWh, so 520 kWh is a standard cabinet, not the fleet divided by 70. Fifty households times 70 cabinets is 3,500 households, by our arithmetic. The October page's "almost 6,000" does not match that product. Sixty thousand kilowatt-hours divided by 520 is about 115.4 cabinets, and 115.4 times 50 households is about 5,770, which sits near "almost 6,000". The household line fits a fleet near 60 MWh of standard cabinets. The site count is a minimum of 70, and the release says the plants vary in size. The November page's 16 MW is a third figure. A reader cannot pick a single duration off these two pages.

The charge. OK says the batteries charge when production from wind turbines and solar cells is high and the power is cheap, and send energy back when demand rises. They also support the company's car and truck chargers: when many vehicles charge at once, the battery supplies extra power to the charger, which the release calls an ampere boost. That is stored power pushed back out. It is not a generator. No kroner price, no contract length, and no tariff are printed on either page. No utility bill is attached.

A cement plant already on this desk, in Bowmanville, is a different job: one 50 MWh box behind a factory meter, with the megawatts left blank, charging from the grid. OK's pages name wind and solar as the cheap charge, and then disagree on the size of the fleet.

Analogy: October hangs a label of about 30 MW on the tap and about 60 MWh on the tank. November hangs about 16 MW on the tap and a tank just under 65 MWh. 520 kWh is one cabinet. The cabinet stores power the grid has already made. It does not make a new supply for the night shift.

Good: Two dated pages, a named customer, a named supplier, a site count, a cabinet size, and a plain line that the batteries sit on connections the stations already have.

Bad: 16 MW and about 30 MW are both in print. About 60 MWh and just under 65 MWh are both in print. The hours are our division. 36.4 MWh is our multiplication of the standard cabinet, and it matches neither fleet total. Almost 6,000 households and 70 sites do not divide into the 50-household cabinet. No price. The October release is the plan. The November page changes the megawatts.

Ugly: Averaging 16 MW and 30 MW into one tap. Treating 520 kWh as the whole order. Treating 260 kVA as 260 kW. Treating more than 100 MWh of company history as this fleet. Treating the cabinets as a supply that runs after dark with nothing stored from the wind, the sun, or the grid. Treating "almost 6,000 households" as 70 times the standard cabinet.

Soft next step: keep 16 MW on the November page, keep about 30 MW on the October page, and leave the kroner blank.

Source: Cactos, 3 November 2026 - OK station batteries. Primary for the 3 November date, the partnership language, first units installed in October with further units every month, 70 units by the end of 2027, the retelling of OK's 8 October announcement as approximately 16 MW and just under 65 MWh across 70 systems with the first 20 before 2027, Cactos as the supplier of all of them, approximately 1,100 OK locations with existing connections, the three uses (extra charging power, storing plentiful cheap wind and solar, reserve and flexibility markets), the Mylo unit at 520 kWh and 260 kVA being installed in Odense, and the company book of more than 400 sites and more than 100 MWh. The page does not print a price, a contract length, or a duration in hours. It does not convert 260 kVA into kilowatts. The 100 MWh line is the company book, not this order. OK, via Ritzau, 8 October 2026. Primary for the 8 October release, a minimum of 70 plants on OK's own sites, about 30 MW and about 60 MWh once all are in, almost 6,000 households for a day when fully charged, the first 20 before year-end, Trustrup and Vester Lyby on 8 October, Odense and Svendborg later in October, a standard plant of 520 kWh equated to about one day for 50 households, plants that vary in size, existing connections, charging when wind and solar production is high and power is cheap, the ampere boost for chargers, and Cactos already named as the European supplier. The page does not print 16 MW, a price, or a duration in hours. Seventy times 520 kWh equals 36.4 MWh, and 50 times 70 equals 3,500 households: both products are our arithmetic. About 60 MWh divided by about 30 MW is about two hours, and just under 65 MWh divided by 16 MW is a little over four hours: those quotients are our arithmetic. Sixty thousand kilowatt-hours divided by 520, times 50, is about 5,770 households: that chain is our arithmetic, and it sits near the October page's "almost 6,000" only if the fleet is near 60 MWh of standard cabinets.