ARCON SOLAR. LARGE SCALE SOLAR THERMAL POWER PLANTS for District heating. Christian Stadler MD of ARCON Solarwärme GmbH November 2014

Transcription

1 ARCON SOLAR 2014 LARGE SCALE SOLAR THERMAL POWER PLANTS for District heating Christian Stadler MD of ARCON Solarwärme GmbH November 2014

2 THE WORLD'S BEST ENERGY IS FREE AND YELLOW A solar thermal solution provides fixed low energy costs with minimal risk for many years into the future. That is why there is solid growth in establishing large-scale solar heating. There are so many advantages that it Full Lower heat Stabilize heat price is mainly about price finding the best possible solar-heating solution combination flexibility REDUCE THE PRICE OF HEATING SIGNIFICANTLY STABILISE THE PRICE OF YOUR HEATING REDUCE GLOBAL WARMING

3 Easy forecast for the next 25 years: Future energy price Low and stable Primary energy factor CO2 production Zero None

4 kwh/m² SOLAR THERMAL IS THE MOST LAND SAVING RENEWABLE ENERGY 160 Annual energy yield in kwh per m² of land Solar thermal PV Wind power Biomass Bioethanol Taken from Per Alex Sørensen, Planenergi: Experience with solar thermal in Denmark, Jan. 2014

5 Solar for district heating started In 1988 the first largescale solar plant for district heating was started by Saltum district heating. The system is still in operation. Saltum (1988), 700 kw, 1000m² 5

6 And grew to MW-systems in the past 10 years Solar heating is combined with natural gas-fired combined heat and power for the first time in Brædstrup in Because of the positive results the system was more Brædstrup than 2 (2011), doubled in MW, 10,604m² Brædstrup 1 (2007), 5.6 MW, 8,012m² 6

7 Brædstrup was for the first time combining Solar & CHP Demand and grid data: households, people (in 2008) MWh heat production MWh heat sales ~70/35 C operation temp. of the grid 25 km main line length (26 km connection line) Conventional plant: Gas-CHP engines 7.3 & 8.2 MW Backup-Gas-Boilers 10.5 & 13.5 MW Solar share: : 8,012 m², 5.6 MW 7.6% of heat demand covered since 2011: 10,604 m², 7.4 MW % of heat demand covered Here are 149m² in one row (max. 200m²) 23,000 m² needed land

8 For that an optimized operation strategy for CHP combination was developed

9 ARCON SOLAR IS BEHIND THE MAJORITY OF EUROPE S LARGEST PLANTS ARCON Solar is behind 15 of the 25 largest large-scale (>1.000m2) solar thermal plants established in Europe. We installed plants with more than m2 absorber surface area. No. Project Name Size (m 2 ) Power [MW th ] Year Supplier 1 Dronninglund / DK , ARCON 2 Marstal / DK ARCON 3 Grasten / DK , ARCON 4 Braedstrup / DK ARCON 5 Vojens / DK , Ringkobing / DK , ARCON 7 Sydfalster / DK , ARCON 8 Saeby / DK , Gram / DK , ARCON 10 Kungälv / SE ARCON 9

10 WE ARE DEDICATED TO LARGE-SCALE SOLAR THERMAL! For now 40 years ARCON has delivered solar thermal solutions and we grew with our customers demand. We are fully specialised on solar thermal and the needs in large-scale applications. Our focus is to optimize the solar system and increase the Returnof-Invest (ROI) for our customers. Grenaa (2014), 8.8 MW, 12,500m² 10

11 We are your partner for all projec Ulsted (2006) 3.5 MW, 5,024m² 11

12 PROJECT EXECUTION From component delivery to Turnkey realization of full solar plants Project management Planning in Microsoft Project CE marking and risk assessment Installation and commissioning Training and handover to customer Quality Assurance Close cooperation with the customer and advisors Engineering System Design PID / PFD Pipe sizing Field Optimization incl. pressure loss calc. Sizing the solar unit Management & electrical installation 2D/3D Design Field layout Foundation plans for the construction 12

13 The next level: Solar heat plus seasonal storage Dronninglund, 60,000 m3 pit storage 13

14 Pit storage with stratification 14

15 Pit storage After filling before closing with the insulating top lid 15

16 60,000m3 pit storage, 50% of the cities demand After closing with the top lid Dronninglund SUNSTORE ,000 m3 100x100m dimension at the top 18m depth 2.27 mio. Investment or /kwh deg C 16

17 The solar summary 25 years fixed and low heat costs Up to 20% solar fraction of the district heating demand /MWh are typical 25 years ARCON large scale experience

18 Thank you for your attention! 18