Againity

We are Againity

We turn your waste into electric power

From waste to value

Againity utilizes low-grade heat and converts it into electricity through a so-called ORC system (Organic Rankine Cycle). Thanks to an in-house developed patented turbine, the system can utilize heat down to 90 degrees Celsius – and still have a short payback time for systems down to 50 kW of electricity produced.

The heat source

The heat source can be anything from incinerated waste, wood chips or biogas, to waste heat from a gas turbine, Diesel generator or other industrial processes. At Againity we happily help with the technical layout and financial calculations of potential projects.

Simple installation

The system is delivered pre-fabricated and installed by a simple pipe connection of the heat source and a cable to the power grid. The system is fully automated and a TCP/IP connection allows convenient monitoring and remote control. The turbine system consists of high-quality components, designed to last long periods without maintenance.

System sizes

Againity offers seven standard sizes from 20 to 2500 kW electricity, but since the systems are built as modules they can be easily combined and the maximum power output is thus unlimited. Learn more about our various models under ”Products”.

Contact us today for a discussion about the opportunities in your plant!

Perstorp to upgrade to combined heat and power with an ORC

In Skåne, southern Sweden, local district heating provider Perstorps Fjärrvärme AB will upgrade its 12 MW biomass-fired heat plant to become a combined heat and power (CHP) plant. This the company will achieve by installing a 250 kW Organic Rankine Cycle (ORC) unit at the heating plant.

Jointly owned by E.ON Sverige AB, a subsidiary of Germany-headed energy major E.ON AG and Perstorp’s municipality, Perstorps Fjärrvärme has chosen to invest in renewable electricity production with a so-called ORC turbine from compatriot technology provider Norrköping-based Againity AB.

In our heating plant we only burn clean biomass fuel – wood waste from the production of wood pallets and residual products from the forest. By burning a little more, we now produce our own electricity, completely green and environmentally friendly, said Charlotta Wendt, CEO of Perstorps Fjärrvärme.

Perstorps värmeverk som under vintern kommer att uppgraderas till kraftvärmeverk och producera grön el.
The district heating plant in Perstorp.

Increase local installed capacity

With previous deliveries to Örkelljunga Fjärrvärmeverk and Solör Bioenergi, the order is the third ORC delivery for Againity to the Skåne region. It will be installed in the latter part of 2019.

With ever rising electricity prices and network transmission fees charges, the investment is timely. We will produce most of the electricity during the winter when it is the coldest and our own demand is the highest. We consume about 1 million kWh annually and our own electricity production will cover that need and a little more. The Swedish forest is a fantastic source of energy, remarked Charlotta Wendt.

The installation will help alleviate installed capacity shortage by increasing local installed capacity in the region. The regional electricity consumption in Skåne is today four times greater than the regional electricity production.

We are glad for the confidence shown and are happy to contribute to more local electricity production in Skåne. Perstorps Fjärrvärme is already contributing to a sustainable energy system through its renewable district heating deliveries and is now taking another important social responsibility step by supplementing with renewable electricity production, said Elin Ledskog, Sales Manager at Againity AB and supplier of the ORC turbine.

Rising interest amongst heat plant operators

The new 250 kW capacity ORC turbine is a low-temperature ORC and will be supplied pre-assembled. The installation at the heating plant consists of two pipelines from the boiler circuit, two pipelines from the district heating circuit and one electric cable. The woodchip-fired hot water boiler to which the turbine is connected has a capacity of 12 MW and was delivered by Jernforsen in 2014.

According to Againity, small-scale cogeneration with ORC turbine in the 20 to 2500 kW range is becoming increasingly common on Swedish heating plants. Innovative technology combined with rising electricity and power transmission network costs now makes it profitable for the majority of Sweden’s heating plants to be upgraded to CHP plants.

Read full article in Bioenergy International : https://bioenergyinternational.com/heat-power/perstorps-district-heat-upgrades-to-combined-heat-and-power

Ragn-Sells goes circular with Againity’s ORC-turbin

The waste management company Ragn-Sells is choosing to invest in new, future-proof technology from Againity AB in order to maximize electricity production. The new technology will increase the existing electrical efficiency of the existing plant.

”For us, it is about finding continuous improvements that lead us towards a more sustainable society. With this investment, we utilize the resources that already exist, stop flaring and contribute to a reduced climate impact”, says Erik Gustafsson, plant manager at Ragn-Sells Häradsudden.

The current electricity production at Ragn-Sells Häradsudden is largely driven by self-produced electricity from landfill gas and the surplus is sold to the electricity grid. Today only two out of three gas turbines are in operation and these two gas turbines are becoming worn and losing electrical efficiency.

Ragn-Sells has evaluated several different options and has now decided on a unique technical solution from the company Againity AB. The decision fell on a so-called combi installation (gas turbine and ORC turbine). With the new ORC turbine, the total electrical efficiency of the plant will increase, which means that electricity production, regardless of fluctuations in gas quantity and availability of the gas turbines, is maximized.

”In the past, considerably larger plants were required to obtain profitability in a combi-installation, making this cooperation with Ragn-Sells Häradsudden even more interesting. We will integrate existing turbines into the system in order to get as much power as possible from the gas that is taken out of the landfill, says Elin Ledskog, sales manager at Againity AB.

Read the full article (in Swedish) here: https://www.ragnsells.se/om-ragn-sells/pressrum/

Häradsudden landfill, Norrköping, Sweden

First open visit to VänerEnergi’S ORC TURBINE

On May 16, the first open demonstration was held at the newly installed ORC turbine at VänerEnergi’s heating plant in Töreboda. Heating companies, consultants and suppliers learned more about small-scale electricity production and what it means to upgrade a heating plant to a CHP plant. Thank you to all participants for your engagement and exciting conversations about the potential for increased small-scale electricity production from biomass.

Were you not able to attend this time? Regular visits are arranged to Againity’s installed ORC turbines around Sweden. Contact us and we will be happy to tell you more.

Image from the delivery of the ORC turbine system.

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Open visit at VänerEnergi’s 50 kW ORC turbine.

ORC för gasturbiner

Spillvärme från gasturbiner/dieselgeneratorer

Vid elproduktion med hjälp av dieselgeneratorer och gasturbiner kan så mycket som 70% av energiinnehållet omvandlas till spillvärme och försvinna ut genom avgaser eller kylsystem. Genom att istället låta spillvärmen gå genom Againitys ORC-system kan energin nyttogöras och omvandlas till värdefull elektricitet.

Againitys ORC-system kopplat via en avgaspanna till en gasturbin samt till kylfläktar. 

ORC för solenergi

Solvärme och geotermisk värme

Även solvärme och geotermisk värme kan nyttjas som värmekälla i ORC-systemet. Genom att värma vatten/olja som sedan lagras i ackumulatortankar kan du spara energin och förse ORC-systemet med värme när behovet uppstår. Elproduktion dygnet runt – utan dyra batterier.

Againitys ORC-system kopplat till koncentrerade solpaneler, biobränslepanna och kylfläktar.

ORC för industriell spillvärme

Många industriella processer genererar överskottsvärme som inte sällan försvinner ut genom skorstenen. Tillverkning av pappersmassa, aluminium, cement, tegel, glas, kemikalier, te, öl och läskedrycker är exempel på processer som kan ge upphov till stora mängder värmeenergi.

Med Againitys ORC-system kan värmeenergin omvandlas till elektrisk energi medan du sänker din elräkning och dina effektavgifter och samtidigt gör en insats för ett mer hållbart energisystem.

Againitys ORC-system för el- och varmvattenproduktion från industriell spillvärme på kemikaliefabrik. 

ORC för värmeverk

Elproduktion vid befintlig panna

Genom att elda flis, biogas eller avfall i en hetvattenpanna som är kopplad till Againitys ORC-system så omvandlas bränslet till el och varmvatten. Varmvattnet kan levereras upp till 80 grader och nyttjas för fjärrvärme, lokal uppvärmning av inomhusmiljöer eller industriella processer. Med en enkel installation blir du kraftvärmeproducent och bidrar till ett grönare och mer väderoberoende energisystem.

Exempel 1: Againitys ORC-system installerat vid Ronneby Miljötekniks flispanna på värmeverket i Bräkne-Hoby. Från värmeverk till kraftvärmeverk!
Exempel 2: Againitys kompletta containerlösning med ORC-system och gaspanna installerat på Norrköpings avloppsreningsverk. Rötgas som tidigare facklades bort nyttiggörs nu som el och värme till rötkammare på anläggningen.
Film som visar Againitys ORC-system vid hetvattenpannan på Ronneby Miljötekniks fliseldade värmeverk.



Alvesta Energi AB invests in small-scale CHP

The wood chip fired heating plant in Moheda is now being upgraded to a combined heat and power plant. Alvesta Energi AB has ordered a new type of small-scale steam turbine (ORC turbine) for electricity production from the existing hot water boiler on the heating plant.

”We have chosen this as our first step in creating local, small-scale and renewable electricity”, ”says Mats Karlsson, CEO of Alvesta Energi. ”We do this with the help of an ORC turbine unit connected to our hot water boiler and we expect to produce half our own annual electricity demand at the heating plant in Moheda. The simplicity of the ORC unit and minimal rebuilding of the existing facility are the major advantages.”

During the summer of 2019, the turbine will be installed at the heating plant in Moheda. The technology is based on Organic Rankine Cycle (ORC) that extracts electricity from the low-temperature hot water from the wood chip boiler.

The ORC turbine will have an output of 49.9 kW electricity, which corresponds to 140 single-family homes with solar PV cells. On an annual basis, approximately 170 MWh of electricity will be produced at
the plant. The installation on the heating plant consists of piping from the boiler circuit, piping from the district heating circuit and connection of the electric cable.

Thanks to minimal maintenance and the low cost of the turbine the installation is profitable despite the relatively low electricity prices in Swedish market. The ORC turbine becomes the number nine turbine in Sweden that the Norrköping based company Againity installs, where the majority of the turbines are connected to biomass fuelled hot water boilers.

David Frykerås, CEO of Againity, and Hans Christoffersson, responsible heat production at Alvesta Energi, at the heating plant in Moheda.

Residual products from Småland forestry will now be renewable electricity at Moheda heating plant.







Solör Bioenergy installs ORC turbine

Solör Bioenergy has now installed their first ORC turbine and thereby upgraded the wood chip fired heating plant in Hörby to a CHP. Adding new green electricity to our European energy system.

In order to produce electricity, you have traditionally needed to turn the water into steam to run a turbine. The new electric turbine, a so-called ORC turbine, will instead use parts of the hot water from the hot water boiler and transform it into electricity for local use on the heating plant.

-This technology has been developed by the supplier Againity and makes it possible to produce electricity from parts of our hot water. We expect to be able to produce about 400 MWh in the plant, which covers about 60% of our own needs. The great thing about this type of power generation is that it provides continuous electricity production regardless of weather, ”says Flemming Rasmussen, Regional Manager at Solör Bioenergi South.

Hörby is the first to install the ORC turbine among Solör Bioenergi’s 40 farms in Sweden.

”This is an incredibly exciting project and part of Solör’s major work on energy efficiency. We continuously work to save energy in our facilities by increasing efficiency and reducing losses. Even though we use 99% biofuel in our facilities, this is also a way of working in a climate-friendly way, says Anders Pettersson, CEO Solör Bioenergi Fjärrvärme AB.

Translated from Bioenergitidningen 2018-11-07

The ORC system is lifted into the heating plant in Hörby.

Jonas Kärner from Againity hands over the ORC system to Flemming Rasmussen and Patric Danielsson at Solör Bioenergi.