sdewes, dubrovnik, croatia, 02. october 2009 tariffs for energy storage -stories project workshop-...
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SDEWES, Dubrovnik, Croatia, 02. October 2009
Tariffs for energy storage-STORIES project workshop-
Goran Krajačić, Neven Duić,
Tariffs for energy storages
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Dubrovnik, Croatia, 02/10/2009
Need for financial mechanisms?
www.wwindea.org
Tariffs for energy storages
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Dubrovnik, Croatia, 02/10/2009
Mechanisms BasicsSupport
Policy Support Mechanisms which at a minimum include measures for:
Access to the grid (interconnection), and
A price for the electricity produced that contributes to profitability (revenues from tariffs, or from tariffs plus some other monetary support, must exceed the costs of generation by a sufficient margin for profitability)
RES Policy
Tariffs for energy storages
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Dubrovnik, Croatia, 02/10/2009
Policies that support renewable energy development must include:
• The political desire or demand for renewable sources of generation,
• The willingness to pay for renewable generation, and
• The stability of public policy to provide a return on investment.
Financial Support Mechanisams
Feed-in tariff systems are characterized by a specific price normally set for a period of several years, which must be paid by electricity companies, usually distributors, to domestic producers of green electricity. A variant of the feed-in tariff scheme is the fixed premium mechanism.
Green certificate system RES-E is sold at conventional power-market prices. In order to finance the additional cost of producing green electricity and to ensure that the desired green electricity is generated.
Tendering procedure the state places a series of tenders for the supply of RES-E which is then supplied on a contract basis at the price resulting from the tender.
Tax incentives are used as an additional policy tool. Tax incentives may be a tax credit or a cash payment or an exemption from tax obligations or low VAT.
Investment incentives: A common investment subsidy is a grant for the installation of capacity.
Tariffs for energy storages
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Portugal case study
Tariffs for energy storages
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•Already applied in over 40 countries, states and provinces around the world,
• a highly effective tool for boosting the viability, and hence value, of the renewables industry,
• FITs have been empirically proven to generate the fastest, lowest-cost deployment of renewable energy.
FIT FOR PHS
Tariffs for energy storages
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(eq. 1.)
Working hours at full load
FIT
<1750 h
1750-2750
>2750
Tariffs for energy storages
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Rated power of the turbine – MW 8.0Rated power of pumps – MW 6.5Capacity of the reservoir - m3 120000
Installed power of WT – MW 18.3Additional installed power of WT - MW 13.5 - €/MWh 87.42 0.696i 15%N – payback years 8
Working hours at full load
[€/MWh]
<1750 h 1750-2750
>2750
Market organization
Tariffs for energy storages
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Figure 1. Invoicing, payments and GO flows for FIT.
Invoicing
Calculation for the delivered
GO
Delivered/Taken electricity
Payment for difference between
delivered electricity from
PHS and taken RES electricity
Payment of the delivered
electricity from RES
Invoicing for the collection of fees and
delivered electricity
Other incent. sources
RES
Privileged producer
BuyerPayment
- TSO -
Electricity supplier- DSO -
Market operator
GO Registry
Incentive collection and distrib.
PHS
Privileged producer
Invoicing for delivered electricity
from RES
Invoicing for difference between delivered electricity from PHS
and taken RES electricity
Payment for electricity from RES and PHS
Fees
Guarantees of origin (GO)
GO GO
THANK YOU FOR YOUR ATTENTION!
Tariffs for energy storages
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