Stadtwerke Crailsheim GmbH

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1 Stadtwerke Crailsheim GmbH Solar district heating Hirtenwiesen II Innovative solar thermal plant from a municipal energy supplier Dipl.-Ing (FH) Sebastian Kurz Abteilungsleiter Planung Stadtwerke Crailsheim GmbH

2 Crailsheim population Fränkische Volksfest Crailsheim Merlins competing in the BEKO Basketball- Bundesliga

3 operating figures sales volume 170 Mio. Euro (includes ecoswitch) total assets 92 Mio. Euro (includes ecoswitch) Energy & Water supply grid-type network combined heat and power stations swimming pool ca customers/a Strom Gas Wärme Wasser 405 km 119 km 26 km 192 km customers/a Spa parc vital customers/a

4 STADTWERKE ALLGEMEIN our corporate philosophy is built on three pillars supply services management and cooperation's Electricity Gas Heating Solar energy Cooling Compressed air geographical data processing Contracting Energie Data Management CHP-Service energy consulting plant layout Stadtwerke Dinkelsbühl Stadtwerke Rothenburg o.d.t. GmbH Freibad Vellberg Stadt Langenburg/Gemeinde Stimpfach im Trink- und Abwasserbereich (FWS GmbH) Und unsere eigenen Betriebe: parc vital Hallenbad/Freibad Crailsheim

5 STADTWERKE ALLGEMEIN key philosophy

6 KLIMASCHUTZKONZEPT STADT CRAILSHEIM Energy consumption Crailsheim in 2010 Electricity ~ 261 GWh Heating ~ 509 GWh

7 STADTWERKE PROJEKTE Energy consumption in residential buildings

8 DIENSTLEISTUNG PLANUNG 1. Reduce consumption energy consulting support efficiency measures and saving potentials for local industry reclamation concept for residential areas Such as: Sanier mit mir Introduction of ISO 50001:2011 Energy management systems climate protection concept Crailsheim SWOT-Analyse im Bereich der Erneuerbaren Energien für den Land- kreis Schwäbisch Hall

9 DIENSTLEISTUNG PLANUNG 2. Increase efficiency concept development for sustainable Energy-supply and production support decentralized energy production implementation of CHP- Plants enlargement of district heating networks Such as: district heating network Rothenburg supply concept Procter & Gamble 2020 mini CHP Plant City hall Stadt Feuchtwangen district heating network Stadt Neuffen

10 DIENSTLEISTUNG PLANUNG 3. renewable energies substitute fissile fuels with renewable energies Such as: Solar district heating Hirtenwiesen II 10:1 utilisation of industrial waist heat

11 Urbanistic concept living with the sun Building area Hirtenwiesen II inabitants approx. 4.1 Mio. kwh heat demand housing: Apartment building Single family houses educational establishment Heat supply: Solar thermal plant

12 Solar district heating m² collector area Europe s first and unique storage concept: 2 hot water tanks (100 m³ and 480 m³) Seasonal thermal energy storage ( m³ ground volume ) to of CO 2 are avoided per year

13 Solar district heating

14 Collector area Germany s largest solar thermal plant: apartment building m²; 1.400kW th noise barrier wall m² ; 3.400kW th sports hall 200 m²; 140kW th school 500 m²; 350kW th

15 Buffer storages (water tanks) concrete components, vertikal wired, with stainless steal facing 14 m high liter 108 C and 3 bar loading installation for thermal layering

16 Seasonal thermal energy storage (BTES) Germany s largest borehole thermal energy storage 80 cross-linked polyethylene double U-pipes as ground heat exchangers, with an active borhole lenght of 55 m m³ rock formations used as storage Storage capacity: liter water equivalent

17 Seasonal thermal energy storage (BTES) Principle Quelle: Solites

18 Ecological integrated concept Heat development beside the collector area (Mediterranean climate); interaction with the biota wetlands formation by accumulated rain water from the collector area Development of attractive landscape with species-rich biota

19 Advantages of solar district heating low total heating costs No investment for heater, heating-room, store-room and chimney Mora available space No running costs Security of energy supply (Service operates day and night) Efficient planing of heating installation Implementation of statutory provisions (EEWärmeG)

20 Building example 36 renovated 2- and 4- room flats in 3 buildings Environmentally friendly construction Climate protection as marketing mix solar@home

21 Perspektive bestehende größte thermische Solaranlage Deutschlands mit saisonalem Wärmespeicher und Wärmenetz in einem Wohngebiet Erweiterung Wohngebiet Roter Buck Schritt 1: Anbindung der Solaranlage an das bestehende Wärmenetz des Heizkraftwerkes 1 zur Erhöhung des regenerativen Anteils und Verknüpfung mit saisonaler Speicherung Schritt 2: Aufbau eines neuen Wärmenetzes zur Nutzung von industrieller Abwärme Schritt 3: Anbindung eines Wohngebietes mit paralleler Sanierung der Bestandsgebäude zur Erhöhung der Gesamteffizienz

22 Perspektive Framework conditions constant changing political framework subsidy to complex primarily focused on electricity low incentives to refurbish heating systems sufficient regulations for new building "Nearly Zero Energy Building 2020

23 Vielen Dank für Ihre Aufmerksamkeit!