Year 2023 EcoHeat Technologies has completed and put into operation a new container-type boiler house complex SIA Mārupes Siltumnīcas, which consists of 2 biomass water-heated boiler units with a capacity of each unit of 0.95 MW and a total boiler house capacity of 1.9 MW.

In the new boiler house, heat energy is produced using local, renewable energy resources – wood chips, which will allow Mārupe Greenhouses to significantly reduce natural gas consumption. EcoHeat Technologies modular boiler houses are a solution developed and manufactured entirely in Latvia.

The investment in the boiler house is a little over a million euros and the new boiler house solution will allow significant savings in energy costs. For example, at current prices, it is possible to produce 1 MWh of heat with wood chips, which costs 30-35 euros, while with natural gas, 1 MWh currently costs about 55 euros.

Project Description

“By building a wood chip boiler house, we diversified our heat supply sources. By using wood chips for heating, we significantly increase the proportion of heat obtained from renewable energy resources, because until now we provided part of the heating with heat obtained from biogas. Šķelda is Latvia’s local energy source with a stable and cost-effective offer. The transition to this local solution complements the production cycle of our products as a Latvian producer, that is, now our vegetables are not only grown in Latvia, but it is done using heat produced from Latvian raw materials,” says Maruta Kravale, member of the board of SIA Mārupes Siltumnīcas.

“Modular container-type biomass boiler houses are a versatile solution, because their production and installation require approximately 70% less time than the construction of a traditional boiler house, and later the operation of the boiler house itself gives significant efficiency gains, since the operation of such a boiler house is fully automated and it works without the constant presence of personnel presence,” says Sandis Gromovs, member of the Board of SIA EcoHeat Technologies.

The operators of the new boiler house monitor and regulate it remotely, while the control devices show the values of temperature, pressure, oxygen quantity and fuel bunker filling. Combustion control is automated, control is adjusted for all power modes according to the programmed fuel.

The total capacity of the plant is 1,9 MW. Primary fuel – wood chips.  The modular non-operator heating plant consists of two boiler container modules and a wood chip storage container, a fuel chain conveyor, and an ash container.

The boiler container module contains a boiler, heating water system (with pumps, heat exchanger, etc.), ID fan, electrical power and automation control, and management equipment, as well as a chimney mounted on the outside of the container. The furnace discharge port is connected to the ash conveyor and container to remove ash from the boiler.

Modular containers are delivered to the facility fully equipped with all necessary equipment. If necessary, container-type equipment can be moved to another location.

Full article: Dienas bizness 20.04.2023

Learn more about our recent projects!