Perstorp heating plant

Owner: Perstorp Fjärrvärme AB
Location: Perstorp, Sweden
Existing heat plant: 12 MW hot water boiler
Fuel: Wood chips
Heat generation: 37 GWh/år
Temperature boiler circuit: 132°C
Return temperature district heating: 54 °C
Againity’s delivery: ORC AT200
Max capacity: 250 kW
Expected electricity generation: 1350 MWh/year

Elverum heating plant

Owner: Eidsiva Bioenergi AS
Location: Elverum, Norway
Existing heat plant: 10 MW hot water boiler
Fuel: Recycled waste wood
Heat generation: 55 GWh/år
Temperature boiler circuit: 160°C
Return temperature district heating: 62 °C
Againity’s delivery: ORC AT400
Max capacity: 450 kW
Expected electricity generation: 2100 MWh/year

Högsby heating plant

Owner: Högsby Energi AB
Location: Högsby, Sweden
Existing heat plant: 4 MW hot water boiler
Fuel: Wood chips
Heat generation: 10.4 GWh/år
Temperature boiler circuit: 130 °C
Return temperature district heating: 40 °C
Againity’s delivery: ORC AT50
Max capacity: 49.9 kW
Expected electricity generation: 250 MWh/year

Häradsudden waste treatment plant

Owner: Ragn-Sells Avfallsbehandling AB
Location: Norrköping, Sweden
Heat source: Hot water from gas boiler + gas turbines
Fuel: Landfill gas
Againity’s delivery: Gas boiler + ORC AT100
Max capacity: 120 kW

Moheda heating plant

Owner: Alvesta Energi AB
Location: Moheda, Sweden
Existing heat plant: 6 MW hot water boiler
Fuel: Wood chips
Heat generation: 13.2 GWh/år
Temperature boiler circuit: 115 °C
Return temperature district heating: 50 °C
Againity’s delivery: ORC AT50
Max capacity: 49.9 kW
Expected electricity generation: 170 MWh/year

Thank you Ystad Energi AB for the confidence to supply three ORC systems with total installed power of 750 kW

“We want to equip ourselves to become more self-sufficient and solve our own need for electricity. We found Againity’s solution as very interesting and we have seen that operating data and availability is satisfying. We get a local, green and fossil-free electricity production.”

Thank you Vinko Culjak and Ystad Energi AB for letting us supply three ORC systems with total installed power of 750 kW. We are happy to work with a company that is truly at the forefront of fossil-free energy production!

Link to article in Bioenergitidningen (article in Swedish): https://bioenergitidningen.se/teknik-utrustning/helt-fossilfri-ren-biovarme-och-snart-egen-vaderoberoende-biokraftproduktion-for-ystad-energi

Full house when “new” CHP plant in Moheda opened up for visitors

There was great interest when Alvesta Energi AB arranged an open visit at the newly upgraded cogeneration plant in Moheda.

During the open visit, participants from all over the country had the opportunity to ask questions and learn more about Alvesta Energy’s new ORC turbine. The turbine enables local electricity production using hot water from the existing boiler which is fired with local wood chips, a residual product from the sawmill at the neighboring property.

Mats Karlsson, CEO of Alvesta Energi, talks about the company’s vision of a better environment.

It was during the fall of 2019 that the ORC turbine was installed and commissioned at Moheda heating plant, which made Alvesta Energi first in the region of Småland with a small-scale cogeneration plant. The investment will result in 170 MWh of electricity generation per year in addition to the heat already produced for the district heating network in Moheda.

We see the investment in the ORC turbine as a step going from heat production only to combined heat and power production, using local biomass in a cost-effective way in our heating plant in Moheda, says Mats Karlsson, CEO of Alvesta Energi AB. This allows us to contribute to small-scale, local and weather-independent electricity generation to our common electricity grid.

Today, more than 400 heating plants in Sweden still lack electricity generation, but more and more energy companies are choosing to follow in Alvesta Energy’s footsteps and upgrade their heating plants to cogeneration plants – an investment with both environmental and economic benefits.

We are happy that Alvesta Energi chooses to be at the forefront, showing that also smaller heating plants can contribute to renewable baseload power, says Elin Ledskog, sales manager at Againity. Together we can be part of this necessary transition to a more energy-efficient and climate-smart future.

Elin Ledskog, Head of Sales at Againity, describes how the new ORC turbine can produce electricity from the hot water boiler at the heating plant.

Contact Information:

Elin Ledskog, Head of Sales, Againity AB: 0705-29 32 23, elin.ledskog@againity.com, www.againity.se

Mats Karlsson, CEO of Alvesta Energi AB: 0472-15 199, mats.karlsson@alvestaenergi.se, www.alvestaenergi.se

Bengt Andersson, operating engineer at Alvesta Energi, David Frykerås, CEO of Againity, and Håkan Nilsson, district heating manager at Alvesta Energi, in front of the new ORC turbine system that produces green electricity from wood chips.
Many visitors were curious about the new turbine during the open visit at Moheda’s heating plant.

Solör Bioenergi invests in two additional ORC turbines for green power production

After last year’s turbine installation at the heating plant in Hörby, Sweden, Solör Bioenergi now chooses to provide two more of their heating plants with ORC turbines for local electricity production from biomass. This time at the slightly larger heating plants in Svenljunga and Vilhelmina.

Nicklas Eld, Regional Manager Solör Bioenergi Väst, looks forward to more green electricity production at Solör Bioenergi’s facilities.

It is fantastic that our plant in Svenljunga can produce renewable electricity, which can then be consumed locally, says Nicklas Eld, regional manager at Solör Bioenergi Väst. This is just the beginning. In the future we will see ORC turbines on several more of our heating plants.

Solör Bioenergi are present in over 137 locations, primarily in Sweden and Norway, and is a leading company within renewable energy from biomass. Together with the Swedish company Againity, Solör Bioenergi decided in the spring of 2018 to upgrade Hörby’s heating plant to a cogeneration plant to both reduce their energy costs and contribute to more renewable and weather-independent electricity production in a region suffering from a growing lack of local and reliable baseload power. After a year of electricity production in Hörby, Solör Bioenergi now chooses to continue installing ORC turbines. A steam boiler in Svenljunga and a hot water boiler in Vilhelmina are the coming year being provided with ORC turbines with an installed power of 315 kW and 250 kW respectively.

After these installations, Solör Bioenergi will be contributing with about 2.6 GWh of green baseload power every year from their three small-scale power plants. This corresponds to a reduction of 2360 tons of carbon dioxide emissions per year, by replacing fossil electricity from coal in the European electricity grid, equaling the emissions from a petrol-fueled passenger car driving 1500 laps around the globe.

The hot water boiler in Vilhelmina will be the first in the region of Norrland, Sweden, with a small-scale cogeneration plant, but probably not the last. Today, there are still 400 heat plants in Sweden that lack electricity generation, since previously available technology has not been cost-effective enough other than for the largest heating plants.

The heating plant in Svenljunga will be upgraded to a cogeneration plant in spring of 2020.

It feels good that the technology is being developed so that small-scale electricity generation can be applied in district heating production here in Vilhelmina, says Tore Sundqvist, Regional Manager Solör Bioenergi Nord. This means that we become more self-sufficient and our production becomes even more climate neutral, while at the same time reducing the electricity and power requirements in our local electricity networks.

With the new ORC technology from Againity, more and more Swedish cities and companies are choosing to supplement their hot water and steam boilers to reduce electricity costs and at the same take steps towards set energy and climate goals.

Contact:

Tore Sundqvist, Solör Bioenergi Nord, +46 (0)70-223 42 13, tore.sundqvist@solorbioenergi.com

Nicklas Eld, Solör Bioenergi Väst, +46 (0)70-999 30 62, nicklas.eld@solorbioenergi.com

Elin Ledskog, Head of Sales, Againity, +46 (0)70-529 32 23, elin.ledskog@againity.com

Eidsiva first in Norway to install ORC turbine for heating plant

During the coming winter, the Againity will deliver its first ORC turbine to Norway. It is the Norwegian energy company Eidsiva Bioenergi that has chosen to upgrade their heating plant in Elverum to a combined heat and power plant and thereby contribute to a more climate-smart and environmentally sustainable energy system.

We are honored to welcome Eidsiva as a new partner in our journey towards a more renewable and weather-independent electricity system, says Elin Ledskog, Head of Sales at Againity AB. With a first reference plant in Norway we hope to inspire more Norwegian heating companies to follow in Eidsiva’s footsteps and upgrade their heating plants to cogeneration plants.

The 0.5 MW ORC turbine converts part of the hot water from the existing boiler into electricity. The existing 10 MW hot water boiler was delivered by Jernforsen in 2016 and is fueled by recycled wood. By using parts of the renewable fuel for electricity, Eidsiva will contribute to reducing carbon dioxide emissions corresponding to over 1800 ton per year by replacing fossil electricity in the European electricity grid.

With today’s rising electricity and net tariffs, it is becoming increasingly profitable for small and medium-sized heating plants to combine their heat production with electricity generation. In Sweden, the 15th ORC turbine is now under construction and interest is growing in Norway and other parts of the Nordic and Baltic countries. With the economic and environmental benefits, the ORC turbines make an important contribution to a more renewable and weather-independent electricity system.

Elverum Fjernvarmesentral

About the ORC technology

The turbine system is based on the Organic Rankine Cycle technology, which makes it possible to utilize low-temperature heat to generate electricity. One of the main advantages of cogeneration at biomass heating plants is that, in contrast to other renewable energy sources, it is weather-independent and generates the most electricity during winter when the demand and spot price is high. The local production of electricity also reduces transmission losses and local capacity shortages in the electricity grids.

Power plants

When generating electricity using diesel generators and gas turbines, up to 70% of energy is converted into waste heat, escaping through the exhaust gases or cooling system. By instead connecting the waste heat to Againity’s ORC system, the heat energy is converted into valuable electricity. The image below shows Againitys 400 kWe system linked to four diesel generators.

Also solar panels or geothermal heat can be used as heat sources for the ORC system. By using these energy sources to heat up water in tanks, the energy is easily stored for later usage. Whenever the need for electricity arises, the hot water is connected to the ORC system and turned into electric power.

Brochure – Gasturbines – Againity