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Sedigas Workshop: Biogas- Biomethane
Italy
Injection of biomethane in natural gas grids:
the first steps in Italy
Luciano Baratto Anigas - Regulatory Affairs
Madrid - April 14, 2015
Italian Natural Gas Sector and Anigas
Regulation for biomethane injection in networks and
incentives for biomethane
Procedures and technical standards to injection in
networks
Present status of biogas/biomethane plants in Italy
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Italian Natural Gas Sector (data 31/12/2013)
Number of DSOs: 224
Operate 24.200.000 gas meters
Operate 253.580 km of local network
Distribute 34,1 billion mc (10% of the DSOs
distribute 81% of the volume)
Serve 22.940.000 customers living in 7.043
Municipalities
Number of TSOs: 10 (3 National & 9 Regional)
Operate 34.500 km network (93,5 % of Snam
Rete Gas)
Transport more than 86 billion mc of NG
Serve 3.350 industrial users , 115 power plants
e 3.800 delivery points to connect DSO’ grids
Number of Storage Companies: 5
Operate 15 storage sites
Capacity – working gas 16,5 billion mc of
natural gas
Number of LNG Companies: 3
Operate 3 LNG terminal
Capacity 54,4 million mc/day
Number of Shippers & Suppliers: 397
229 only Suppliers
67 only Shippers
101 Shippers & Suppliers
Natural gas demand 70,1 billion mc
Number of employees: 37.000
Number of NG vehicles: 850.000
Household penetration of natural gas
85%
Biogas and Biomethane
Number of Biogas Plants: 1,713
1,388.4 MW Total Power Plant
Number of Biomethane Plant: 2
Sources: Italian Energy Regulator 2014 Report – GSE 2015 Report – Anigas estimates
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Anigas: Italian Association of Natural Gas Industry
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DSOs
TSO: Snam Rete Gas
STORAGE: Stogit
LNG: GNL Italia, Adriatic LNG, Trans Adriatic Pipeline AG
SUPPLIER & SHIPPERS
NG VEHICLES Association (www.assogasmetano.it)
60% of
Italian Gas
Market
Our Associates:
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Italian Law Framework for BioCH4 injection
Italian Ministry of Industry, Ministry of Environment and Sea, Ministry of
Agriculture Dec 05/12/2013 (http://goo.gl/xJuMTg )
Scope: to regulate the biomethane (BioCH4) use for vehicles & power/heat
generation and to inject in TSO/DSO NG grids
Main measures:
Only BioCH4 produced with agricultural, agro-industrial and domestic
waste is allowed to be injected into NG grids
The BioCH4 must be compatible with NG quality specifications
The NRA provide the responsibilities of grid operators, the quality and
technical specification, the rules to access the grids, the TSOs and DSOs
tariff the BioCH4 flow metering and metering reading
The NRA provide the BioCH4 injected allocation rules.
The TSOs and DSOs provide the upgrading of own Network Codes
(technical standard and cost to connect the BioCH4 plant to own grid)
The national incentive schemes for BioCH4
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BioCH4 – Producer’s incentive scheme
1 PRODUCER’s
INCENTIVES
Biogas/BioCH
4 plant
BioCH4 injection
TSO/DSO grids
2 PRODUCER’s
INCENTIVES
BioCH4 = CNG
for vehicles
Power/heat
generation
3 PRODUCER’s
INCENTIVES
CNG fill
station
BioCH4 = power
& heat
generation
Power/heat
generation
CNG fill
station
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BioCH4 Producer’s incentive scheme
Producer’s incentives
1 BioCH4 injected into
Incentives
TSO/DSO networks with no
specific use
2 BioCH4 injected into
Biofuel
TSO/DSO networks (or not ) certificates
with specific use : fuel for
(CIC)
transportation
3 BioCH4 injected into
Tariff/incentiv
TSO/DSO networks (or not ) es for CHP
with specific use : power &
heat generation (CHP)
Gov. Decree
05/12/2013
http://goo.gl/xJuMTg
Gov. Decree 0
03/03/2011
http://goo.gl/qRtw6M
Gov. Decree
06/07/2012
http://goo.gl/cUwqe4
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Producer’s Incentive Value
+
NG Networks
Injection
Injection for
CHP
Injection for
CNG Fill Station
CAR
No injection
CNG Fill Station
No injection
Incentives only for Producer BioCH4 plant with flow rate > 250 Sm3/h to inject
•
•
•
•
•
Producer is always guaranteed to sell its BioCH4
Incentive for 20 years
Price = twice the average Gas Balancing Market 2012 value – the price of the
month of the present year
Plus 10% of the price if the flow rate is < 500 Sm3/h
Minus 10% of the price if the flow rate is > 1,000 Sm3/h
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BioCH4 – Injection Gas Quality Specification
Decree of 19th February 2007 "Approval
of the technical regulations on the
chemical and physical characteristics and
on the presence of other components in
the fuel gas to be carried."
Gross Calorific Value (“PCS”) Components
Components
Methane
Ethane
Propane
Iso-butane
Normal-butane
Iso-pentane
Normal-pentane
Hexanes and above
Nitrogen
Oxygen
Carbon dioxide
Hidrogen
Carbon oxide
Accept.
Value
(*)
(*)
(*)
(*)
(*)
(*)
(*)
(*)
(*)
≤ 0.6
≤3
≤ 0.5
< 0.1
Meas.
Unit
% mol
% mol
% Vol
% mol
(*) for these components the acceptable values are
intrinsically linked with the acceptable range of the
Wobbe Index
UNI EN 437 “Trial gas – Trial pressure
– Categories of equipment”
Trace compounds
Parameters
Hydrogen Sulphide
Sulphur by mercaptane
Total Sulphur
Mercury
Chlorine
Fluorine
Ammonia
Silicon
Hydrogen
Carbon oxide
UNI-TR 11537 “Injection of
Biomethane in NG transportation
and distribution grids”
Physical properties
Accept.
Value
≤ 6.6
≤ 15.5
≤ 150
<1
<1
<3
<3
<5
< 0.5
< 0.1
Meas.
Unit
mg/ Sm3
mg/ Sm3
mg/ Sm3
µg/ Sm3
mg/ Sm3
mg/ Sm3
mg/ Sm3
ppm
% Vol
% mol
Property
Gross Calorific
Value
Wobbe Index
Relative density
Water Dew Point
Hydrocarbon Dew
Point
Max. temperature
Min. Temperature
Acceptable
Value
Measurement
Unit
34.95 ÷ 45.28
MJ/Sm3
47.31 ÷ 52.33
0.5548 ÷ 0.8
≤ -5
MJ/Sm3
≤0
°C
< 50
>3
°C
°C
°C
Other properties
The gas, during operational conditions, should contain no traces of the following components:
• water and hydrocarbons in liquid state;
• solid particulate in such quantities that would damage the materials used for gas transportation;
• other gases which may affect the safety or integrity of the transportation system.
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BioCH4 Injecting in TSO’s Networks Scheme
Biogas/BioCH4 Upgrading
Plant
BioCH4 Quality
Control
BioCH4 Metering
System
BIOCH4 PRODUCER
TSO
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BioCH4 Injecting in DSO’s Networks Scheme
Biogas/BioCH4 Upgrading
Plant
Gas Quality Control
Gas Metering System
BIOCH4 PRODUCER
Odourisation System
DSO
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Regulation: TSO / DSO Responsibilities
The TSO / DSO has to:
Safeguard the safety and technical efficiency of own network management
Define and publish on web site:
• the quality specifications
• Identify the maximum and minimum pressure value
• Identify the point of entry after verifying the compatibility of the input
profile
Ensure BioCH4 odorization
Ensure that the injected BioCH4 is compatible with the technical
specifications and in case of incompatibility:
•
•
refuse the connection to network
proceed to immediate interruption of gas flow
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BioCH4 Producer Responsibilities
BioCH4 Producer has to ensure:
the compliance of the injected BioCH4 with the quality
specifications and the pressure or capacity restrictions
the BioCH4 can be odorized and its features do not nullify or
cover the effect of odorant substances admitted
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Regulation: procedure for connection request
Procedure Steps for examination of the connection request
1. Prod: request 1 for connection
2. Grid Operator: detection of network entry point, feasibility study of
connection and cost estimation,
3. Prod: accepted the cost estimation and issuing of warranty (bank
guarantee or deposit)
4. Prod: Construction of the connection
The Grid operator:
• Makes all technical specifications available
• Has the right to verify that standards are met
• Is responsible for putting into service, managing and maintaining the
works carried out by the producer
1The
request can be submitted to Grid Operator directly by the producer or through
the future shipper (the producer may not be the shipper)
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Economic conditions and network tariffs
Capex cost of connection
• It is only the cost strictly related to the construction of the
connection (NOT foreseen for reinforcement of existing
networks)
• Payments up to 20 years max
Opex tariffs
• DSO – no charge for use of network
• TSO – tariffs are determined as injection from NG national
production
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BioCH4 metering e meter reading
The BioCH4 Producer is responsible for:
• Installation and maintenance of measuring systems
• Meter reading
• Transmission the measuring data to the TSO/DSOs
The TSO/DSOs are responsible for:
• Collect, validate and record the measuring data
• Transmit the data to third Part (GSE Gov. Company) to recognize the
quantities of BioCH4 admitted to incentives
The TSO/DSOs have the right to:
• access the measuring system (in order to verify its functioning and
maintenance)
• be present at verifications of measuring systems.
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Regulation next steps
AEEGSI (National Energy Regulator):
Approve the TSO / DSO Network Codes for BioCH4 injection
Allocation and balancing procedures
GSE (Gov. Company):
Procedures to transmission the meters data for certification of
quantities and quality of BioCH4 admitted to incentives
CIG (Gas Technical Standardization Committee):
Upgrading UNI/TR 11537
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Present status bio-energies production: 2000-2013
TOTAL Bio-energies
Biogas
Other bio-mass
Bio-liquids
Landfill
Sources GSE 2015 Report
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Supply and demand forecast in the period 2015-2014: BioCH4
“ …..The gas demand in Italy will grow over the decade 2015 2024 of about 2.1% per year, both for an expected recovery
in the macroeconomic and electricity demand, both for the
possibility to activate additional forms of support such as
biomethane and the progressive increase in the use of
natural gas in transport.
In particular, for biomethane, is possible a contribution to
the demand for natural gas of about 5.1 billion cubic meters
in 2024, with significant growth in the last years of the
current decade. …… “
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Thank for your attention !
www.anigas.it
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