Wärtsilä will now build the seven gas-fired engine power plants it was already supplying to Origem Energia in northeastern Brazil, not only deliver the engines. The Finnish group announced on 19 October that its two equipment contracts with the Brazilian energy company have been converted into a wider scope that adds process engineering, procurement and construction above ground level. Together the plants come to 371 MW and will run on 36 Wärtsilä 34SG engines.
From Engine Supply To The Whole Plant
The engine supply itself is not new. Wärtsilä and Origem announced the 371 MW partnership in May, and the equipment orders were booked in the first and second quarters of 2026. The EPC part followed in the third quarter. No contract values were published.
The projects are Pilar Nova, Pilar and Manguaba I to V. All seven won capacity in Brazil's 2026 Reserve Capacity Auction, and their job is balancing: they are meant to step in when wind and solar output falls, as the share of renewables on the Brazilian grid keeps rising. Origem will fuel them with its own onshore natural gas, and it plans an energy hub in the state of Alagoas around them. According to the release, Pilar Nova and Pilar should enter commercial operation in October 2028, and the five Manguaba plants in August 2029.
Origem's director of power plant construction, Levi Souto, described the plants as a step towards a single platform that takes the company's gas from the field to the grid, and said the wider Wärtsilä scope helps keep the programme on schedule. For Wärtsilä, regional energy director Gastón Giani pointed to the company's project execution as the reason the contracts were extended.
Why An Integrated Producer Hands Over The Build
A gas producer that owns the fuel and the plants could have kept construction in house or split it between local contractors. Handing the process side to the engine supplier puts the interfaces in one place, and on a multi-plant programme that is where time is usually lost: fuel gas treatment, lube oil, exhaust and the cooling systems all have to match engines that arrive on a fixed schedule, and a mismatch found during commissioning costs weeks. With seven sites and two commissioning dates, repeating one plant layout is also easier when one party owns it.
Balancing duty is hard on a plant in its own way. A balancing unit does not run steadily for months; it starts and stops with the weather and has to reach load quickly whenever the wind drops or the sun goes down, in a tropical climate on the hottest days too. Auxiliaries that are sized only for a standard rating day can become the limit then, which is why buyers of such plants look closely at site temperature and humidity in the specification. Wärtsilä gas engines carry the same kind of duty in the large engine plant in Australia we reported on earlier this month. More on these plants: engine power plants.
For Pilar Nova and Pilar that leaves two years to commercial operation, and the five Manguaba plants follow ten months later. On a programme of this size, that is not much float.
Sources: Wärtsilä (Cision), Cyprus Shipping News
