SOLAR HEATING PLANTS HOW IT IS MADE IN DENMARK

Transcription

1 SOLAR HEATING PLANTS HOW IT IS MADE IN DENMARK Christian Teil Fyhn Project Manager Energy & District Heating, West M chtf@ramboll.dk Rambøll Englandsgade 25 DK-5100 Odense C

2 LOCAL PARTNER GLOBAL KNOWLEDGE Outside Europe Ramboll has a significant presence in India, Russia and the Middle East With more than 200 offices in 19 countries we emphasise local experience combined with a global knowledge base 2

3 SOLAR HEATING Ramboll has been involved in more than 200,000 m 2 solar heating plants, covering more than 20 different projects, including 7 out of the 8 largest facilities in the world. Ramboll s experience within solar heating started in 1996 and we are now world leader in design and implementation of large scale solar heating plants in the district heating sector.

4 DESCRIPTION OF A TYPICAL DANISH DISTRICT HEATING PLANT consumers Heat production MWh thermal Peak load = 8-12 MW Fuel = Natural gas Heat producing units 2 to 4 boilers 1 or 2 CHP m³ heat storage

5 RAMBOLL S APPROACH TO SOLAR HEATING KEEP IT SIMPEL BY FOCUSING ON Simple installation reducing investment cost reduces maintenance and operation cost Highly effective panels optimal use of the available land area Intelligent control system maximizing the performance and output of the solar energy optimizes the cooperation with the existing production units

6 SCHEMATIC OF A SOLAR HEATING PLANT District heating system Heat storage Solar collectors Solar secondary pump Heat exchanger Solar primary pump

7 MAIN COMPONENTS

8 WHAT S IMPORTANT 500 The 1 st steps before investing in solar heating 400 Step 1: Optimize the existing kwh/m²/year 75/35 C 85/50 C 90/70 C Step 2: Step 3: production units Focus on the consumer installations low return temperature is vital for optimal performance of the solar plant. Invest in a solar plant

9 WHAT IS THE OPTIMAL SIZE? Depends on your focus Highest performance/m² 2-5% solar fraction Highest solar fraction with existing production system/storage 15-20% solar fraction Highest Solar fraction possible 50-65% solar fraction seasonal storage needed

10 CASE: GRAM DISTRICT HEATING COMPANY Key figures: Heat production MWh/year No. of consumers Average return temperature (Summer/Winter) 40/35 deg.c Average supply temperature (Summer/Winter) 70/75 deg.c Peak load 11 MW Heat producing units: 2 natural gas boilers 1 CHP-plant 5,3 MWelec. / 6,5 MWth m³ heat storage tank

11 CASE: GRAM DISTRICT HEATING COMPANY The 1 st solar plant Constructed in 2009 Size: m² solar collector Yield: MWh/year Solar fraction: 16 % Budget: 2,44 million EURO Are they satisfied?

12 CASE: GRAM DISTRICT HEATING COMPANY THE ANSWER IS YES 2 nd stage is initiated Key figures m² solar collectors m³ pit heat storage 3 MW biomass boiler 3 MW absorbtion heat pump Solar fraction of 60% Budget = 14 million Euro

13 RAMBOLLS REFERENCE LIST WITHIN SOLAR HEATING PLANTS IN DENMARK In operation Year Collector area Capacity [m²] [MW] Year Collector area Capacity Planned / under construction [m²] [MW] Marstal etape 1A ,6 Ærøskøbing 1. etape ,4 Marstal etape 1B ,7 Ærøskøbing 2. etape ,0 Rise, Ærø ,6 Marstal etape ,5 Brædstrup ,6 Strandby ,6 Soenderborg ,1 Hillerød ,1 Gram, 1. etape ,0 Jægerspris ,0 Oksbøl ,0 Tistrup ,8 Hejnsvig ,6 Sydfalster ,5 Vojens ,3 Gråsten ,3 Marstal ,5 Sydlangeland ,8 Toftlund ,7 Langå ,7 Karup ,6 Gram, 2. stage ,7 Løgumkloster, 1. stage ,8 Tarm ,0 Jægerspris 2. stage ,1 Høng ,0 Oksbøl 2. stage ,5 Stege ,5 Helsinge 2. stage ,2 Løgumkloster, 2. stage ,5 Vojens, 2. stage ,8 Haslev

14 THANK YOU QUESTIONS?