Green Partnerships Local Partnerships for Greener Cities and

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BIOMASS

Expert working group on biomass Prepared by Veronika Valentar

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Energy use in Slovenia

The importance of wood biomass in Slovenia:- Annual use of renewable energy sources in Slovenia- Annual use of energy in households(Source: stat.si)

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Annual use of renewable energy- general Gheotermie (TJ)

Solar thermie (TJ)Industial waste- not renewable (TJ)Komunal waste- renewable (TJ)Komunal waste- not renewable (TJ)Wood and wood biomass (TJ)Peat (TJ)Depot gas (TJ)

Heating oilNatural gasWood fuelsLiquid oil gasElectric powerCoalDistrict heatingSolar energyGheotermal energy

End use of energy in households 2012

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-Keeps stores of fossil sources- CO2 neutral-Support stability of rural areas-Improves incomes from agriculture and forestry-Based on local supply-Providing job opportunities inlocal environment

Why biomass?

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Biomass supply- forests in Slovenia

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- Non forest biomass- The worst quality wood from forests- Felling residues- Wooden residues (recycling)- Etc.

-Quantity:

Local biomass sources

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- Firewood- Wood chips- Wood (and non wood) pellets- Wood briquets

Types of wood biomass fuels and production technologies

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Organization of biomass supply chain

This is a symbolic picture- Add the chart of the most usual supply process

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Biomass logistics

- Wood drying:

- Biomass trade center, storing of biomass

- Biomass logistics

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- Individual heating system

Heating networks

Micro system heating network

District heating network

Mikro mreža

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•Heating system= heating boiler (wood chips, supplied by automatic system + boiler room)•Investor is authorized for operation, service, maintenance and possible new investments•The contract lasts at least 15 years

Biomass heating contracting for public building

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• Based on usual heating contracts for district heating systems

• Use of heating energy is measured regarding heating value of wood (measured by heating supplier)

• Use of heat is accounting based on actual energy consumption

• The system is insured together with the insurance for building

Heating contract

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• Decision making process with municipality• Permissions of land owners/ public (impact

on environment)• Subscription fee?• Investment reimbursement (subvention)?• Building permissions

Administrative barriers

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Technical questions

•Sanitary warm water in summer season•Basic requests regarding:

• Heating room• Boiler• Installations• Biomass supply (driveways)

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•Investment costs: 600-700 €/kW installed power

•Heating boiler, supplying system: 200-300 €/kW installed power •Hot water system: 80-100 €/m’ route

• Variable costs:•Biomass (17- 21 €/sm3)•Power•Maintenance

Investment plan

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•Incomes:•Subscription fee 160-250 €/kW installed power•Energy price (70- 90€/MWh)- 2500 working hours/a

Investment plan

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Simple feasibility study

Determination of installed

power

Definition of investment

Identification of Variable

costs

Partners:Investors, suppliers,

SWOT analysis,

Identification of incomes: energy price

Contracting consortium

Informing, public

awareness rising

Project proposal

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• Identification and promotion of project

• Working with different target groups: public,

• Excursions, best practices exchange

Public awareness rising

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• Too late: other plan, heating system on gas, heating room is constructed•Not enough demand on heating•Project engineers are not flexible enough

ADVISE: NEVER GIVE UP!!!

Typical problems:

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Questions?THANK YOU FOR YOUR ATTENTION!