Framework Conditions for Planning, Procuring and …kgh-kongres.rs/images/2017/Prezentacije/50.pdf · Framework Conditions for District Heating Systems, SDH workshop, 7 Dec 2017 Framework

Framework Conditions for District Heating Systems, SDH workshop, 7 Dec 2017

Framework Conditions for Planning, Procuring and Operating District Heating Systems including Thermal Solar Plants

Gerhard Hofer

Gerhard Hofer, Framework Conditions for District Heating Systems, SDH workshop, 7 Dec 2017

● Research and consultancy company, seated in Vienna

● Focus on Energy related topics

● www.e-sieben.at

e7 Energie Markt Analyse GmbH

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Energy efficient and sustainable buildings

and urban neighbourhoods

Energy and climate policy support,

Energy economic studies

Source: e7

Support for energy saving and optimisation

of buildings and networks


Examples of references in district heating

General | Orientation for district heating providers nationwide/for regions

Study on Future Potential for District Heating and Cooling in Austria

Study on Policy Instruments for Energy Planning

New networks | Feasibility of district heating solution for a specific district

Feasibility study for sustainable alternative heating supply systems in the district

Donaufeld in the City of Vienna

New networks | Procurement of local district heating to an ESCO

Procurement procedure for Heat supply system in Limberg, Salzburg

Existing networks | Energy savings for local district heating suppliers

Concepts for reducing inlet temperature of heating network

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Future Potential for District Heating and Cooling in Austria

● Bottom up model

● Spatial grid over whole Austria

● Size: 1 x 1 km (= 85.000 grid cells)

● Information about Number of apartments Energy demand for heating and

hot water Future outlook in scenarios

(decrease of heat demand, energy efficient building technology, new buildings and renovation)

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Future Potential for District Heating and Cooling in Austria

● Prognosis for district heating

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District heating supply2001-2007

District heating prognosis2008-2017

Potential energy demand for district heating













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Policy Instruments for Spatial Energy Planning

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Local energy resources

Energy demand scenarios

Infrastructure

Solar, geothermal, wind, waste heat

Heating demand scenarios, developments in building

technologies

Targets for infrastructure (regions, new solutions,

energy carrier)

Concept for spatial energy planning

Land development plan

Strategic urban planning

Infrastructure decisions

Source: Stefan Geier, MA20


Policy Instruments for Spatial Energy Planning

● Define strategies for each energy generation system areas for district heating – enough heat demand

in specific area for economic operation of district heating

areas for using waste heat – assessment of existing waste heat potential (esp. in combination with district heating)

areas for other energy carries such as biomass, heat pump including solar energy

● Define a plan to set priorities of heat generation systems for specific areas in cities and municipalities

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Example: Zürich Kloten













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Gerhard Hofer, Framework Conditions for District Heating Systems, SDH workshop, 7 Dec 2017 11

Affordable Housing

Social Housing

Climate Protection Goals

Smart City Goals Vienna

Paris Agreement

Electricity Market Prices

Use of CHP installations in District Heating

Fair Heating Rates for Residents

Reduced CO2 Emissions Alternative Supply-source for

Gas

Alternative Supply-source for District Heating

Source: e7

Task

Concepts for an energy-efficient and sustainable Heat Supply

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60 hectares23 construction fields

757.000 m² gross floor area6.000 appartments

31 MW47.700 MWh

construction phase 1 + 2: 2019 - 2020construction phase 3: 2025 - 2027

appartmentsschool campus

13.200 individuals

Source: basemap.at


Process (1)

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Process (2)

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Basic approach of low temperature district heating incl. local RES

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Floor heating

Floor cooling possible

Solar

~35/28°C

Max 60°C

SolarPV

Geothermal probes,

seasonal storage

Heat pumps Hot water storage

HPHP HP

Waste heat

Better 15 - 30°C

“Cold heating network”

Use existing waste heatUse local renewable energy sources

Low temperature heating system


Heat supply concepts

Heat pump concepts

GasHeating plant

Mixed concepts


CO2 Emissions

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District heating

GasHeat Pump concepts

GasMixed Concepts


Life cycle costs

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3%

District heating

Heat Pump concepts

GasMixed Concepts

Gas













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Task

Procurement of local heating system

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One private project developer

Heating system and integration of local PV

Private procurement procedure

Competition between 3 companies

Source: kofler architects


22.000 m² gross floor area23 buildings

0,7 MW1.300 MWh

construction phase: 2019 - 2023

apartmentssupermarket, kindergarten

500 individuals

Source: basemap.at


Technical concept for local heating network

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Quelle: Helmut Meisl


Requests in competition

● Best concept for heating network and mandatory integration of energy from photovoltaic

● Heat tariff was fixed

● ESCO had to calculate financial subvention from project development company in order to cover costs for fixed heat tariff

● Innovative concept with lowest financial subvention won competition

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Source: Hillebrand

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Concepts for reducing heating network temperature of hospitals – Outlook

● Reduction of temperature in district heating network leads to improve energy efficiency and economic performance

● Example 1 Goal: Reduction of outlet temperature of buildings

to district heating network Task: Analysis of technologies and heat flow in a

hospital building to reduces outlet temperature

● Example 2 Goal: Temperature of existing steam district heating

network will be reduced to max 90°C Task: Analysis of existing network and

development of measures to reduce inlet temperature to 90°C

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Thank you for your attention!

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Gerhard Hofer

e7 Energie Markt Analyse GmbH

Walcherstraße 11/43

1020 Vienna

T +43 1 907 80 26

[email protected]

www.e-sieben.at

mailto:[email protected]

http://www.e-sieben.at/

Documents

Framework Conditions for Planning, Procuring and …kgh-kongres.rs/images/2017/Prezentacije/50.pdf · Framework Conditions for District Heating Systems, SDH workshop, 7 Dec 2017 Framework