eng. khaled .h. al-walidi electric interconnection expert national electric power co. (nepco)
DESCRIPTION
Renewable Energy Resources Connection aspects, related studies and international code amendment practice. Eng. Khaled .H. Al-Walidi Electric Interconnection Expert National Electric Power Co. (NEPCO). Eng. Issa .I. Sleehat Transmission Planning Engineer/ System Planning dep. - PowerPoint PPT PresentationTRANSCRIPT
NEPCO
National Electric Power Company , Jordan
Renewable Energy ResourcesConnection aspects, related studies and international
code amendment practice
Eng. Khaled .H. Al-WalidiElectric Interconnection Expert
National Electric Power Co. (NEPCO)
Eng. Issa .I. SleehatTransmission Planning Engineer/ System Planning dep.
National Electric Power Co. (NEPCO)
NEPCO
National Electric Power Company , Jordan
INTRUDUCTION
As the energy industry moves forward, the use and research into renewable energy resources (RERs) have expanded significantly. Whether it is wind, biomass, or solar, the industry is seeking ways to connect, breakthrough and integrate the newest technologies into their power systems.
As the fuel price and environmental concerns grow, these generation technologies have proven to be an efficient and fiscally sound alternatives for the energy industry.
NEPCO
National Electric Power Company , Jordan
INTRUDUCTION
connection of (RERs G) capacity can have a serious effect on the system reliability and power quality. This is caused by the complicated control problem that is introduced onto the system due to a two-source, one-load situation. Moreover, reliability and faults from other parts of the grid, far from the RERs G site can result to operating problems for the RERs G unit. .
NEPCO
National Electric Power Company , Jordan
Master Strategy of Energy Sector in JordanIn renewable energy domain
Energy sector strategy has provided for reaching a contribution percentage for renewable energy in total energy mix of about 7% by the year 2015 and 10% by the year 2020 .
Wind: 500 MW up to year 2015.
1200 MW up to year 2020.
Solar: 600 MW up to year 2020.
Bio : (20-50) MW up to year 2020.
NEPCO
National Electric Power Company , Jordan
Planned Wind Power Generation Capacity
NEPCO
National Electric Power Company , Jordan
Master Strategy of Energy Sector in JordanIn renewable energy domain
Projects under implementation
• wind project in Kamsha (30-40) MW (negotiation).
• wind project in Fujaij (grant submitted by GEF) – 70-100 MW
(bidding)
• 1 MW solar project (Spanish grant).
• Maan solar project – 100 MW (feasibility study phase)
• Haraneh solar project – 20 MW (BOO) (under evaluation)
NEPCO
National Electric Power Company , Jordan
Master Strategy of Energy Sector in JordanIn renewable energy domain
Complete the studies necessary for the thermal solar energy projects (300-600) MW.
Expand in the use of the solar cells systems to lighting remote areas and in domestic, industrial and commercial uses and electricity generation.
Carry out electricity generation project from the municipal wastes in coordination with GAM and concerned bodies.
Focus search and study on the biogas fuel (Brazilian experience) to be used in covering industrial needs and transport sector.
NEPCO
National Electric Power Company , Jordan
Master Strategy of Energy Sector in JordanIn renewable energy domain
Create a fund to aid renewable energy projects (and energy rationalization) so that resources of the fund are through:
Treasury allocations. Environment fund (CDM). Amounts from Jordan country project fund and within available
potential. External aids from donors (French agency, German construction
bank, Japanese agency…etc). GEF through World Bank. Any other sources that can be proposed.
NEPCO
National Electric Power Company , Jordan
INTERCONNECTION ASPECTS
The connection of these generation capacities on the national networks (Distribution & transmission) has gained significant attention in the past few years as energy industries is seeking for feasible ,effective solutions and public relations regulation acts that define the rights and responsibilities of all parties .
NEPCO
National Electric Power Company , Jordan
INTERCONNECTION ASPECTS
Standard interconnection rules needed for:-Encourage the application by reducing uncertainty. establish clear and uniform processes and requirements for connecting to the electric utility gridensure that the project interconnection meets the safety and reliability needs of both the energy end-user and the utility. ensure that the costs of interconnection are the same throughout the country.
NEPCO
National Electric Power Company , Jordan
INTERCONNECTION ASPECTS
Standard interconnection rules address the application process and the technical requirements for interconnecting RERs projects of a specified type and size with the electric grid .
Include some or all parts of the interconnection process, starting from when a potential customer considers submitting an application up to the time when the interconnection agreement is finalized.
Applicant submits completed application form
Request complete Request completeYES
NO
RERs G unit < 2 MW?
YES
Apply the screens for “Fast Track”
Project passes the fast track screens
Sign interconnection agreement
Construction, commissioning and testing; operation
YES
YES
Study ProcessNO
Customer agrees to pay for any
needed upgrades?NO
YES
YES
Withdraw interconnection
request
NO
NO
RER G < 2 MW, meets key codes and standards, meets certification of small generation equipment package
Addition of RER G shall not allow generation on circuit to exceed 15% of the line section annual peak load
RER G project, along with other generation on circuit, shall not
contribute more than 10% to the maximum fault current
Addition of the DG project shall not cause any protective devices to
exceed 87.5% of the short circuit interrupting Capability
Sign interconnection agreement
Construction, commissioning and testing; operation
YES
YES
YES
YES
YESGo to Study
Process
NO
NO
NO
NO
NO
Fast Track Screening
Process
NONO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NONONO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NONONO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NEPCO
National Electric Power Company , Jordan
TSP/DSP Customer Meeting
System impact study
Project rejected
Project not feasible
Study required
Minimum engineering review
System upgrade required
No system upgrade required
Facilities study upgrade
substantial?
Upgrade contract
Upgrade system
Project approved
Execute Interconnection Agreement
Install system, certificate of completion, inspection, commissioning test
Parallel operation
No study required
NoYes
STUDY PROCESS
NEPCO
National Electric Power Company , Jordan
Tech. Concerns with Integrating RenewablesPenetrationAffected by utilities' existing generation mix regulating capabilities, load characteristics, resource availability, and correlations between system load and resources.
Additional systems costs imposed by variability and uncertainty may go up with increasing penetration.
Costs are moderate – up to 20-30% Penetration – and depend on balancing authority and market structure
NEPCO
National Electric Power Company , Jordan
NEPCO
National Electric Power Company , Jordan
NEPCO
National Electric Power Company , Jordan
Infrastructure CapacityLack of transmission capacity from stranded renewable resources locations.Variable and uncertain generationSolved by Spatial diversity of the resource. Flexible conventional generation. Grid operations and control areas. Limited curtailment for extreme events And at high penetrations possibly storage
Tech. Concerns with Integrating Renewables
NEPCO
National Electric Power Company , Jordan
Lack of transmission capacity
NEPCO
National Electric Power Company , Jordan
INTERC. Standards and Certification Criteria IEEE 1547 Series Standard for Interconnecting Distributed Resources with Electric Power Systems (including use of IEEE 1547.1 testing protocols to establish conformity) .
IEEE1547.1 Standard Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems.
IEEE P1547.2 Draft Application Guide for IEEE 1547 Standard for Interconnecting Distributed Resources with Electric Power Systems.
NEPCO
National Electric Power Company , Jordan
INTERC. Standards and Certification Criteria
IEEE 1547.3 Guide For Monitoring, Information Exchange, and Control of Distributed Resources Interconnected with Electric Power Systems.
IEEE 1547.4 Draft Guide for Design, Operation, and Integration of Distributed Resource Island Systems with Electric Power Systems.
IEEE 1547.5 Draft Technical Guidelines for Interconnection of Electric Power Sources Greater than 10MVA to the Power Transmission Grid
NEPCO
National Electric Power Company , Jordan
INTERC. Standards and Certification Criteria
IEEE1547.6Draft Recommended Practice For Interconnecting Distributed Resources With Electric Power Systems Distribution Secondary Networks
UL 1741 for equipment certification such as Inverters, Converters, and Controllers for Use in Independent Power Systems
National Electrical Codes
NEPCO
National Electric Power Company , Jordan
GRID CODES
Grid Codes are designed to cover all technical aspects relating to the connection, operation and use of the transmission system. but the existing grid code requirements may be impossible or irrelevant with respect to the physical aspects and technical capabilities of these generation plants .Many countries are now expending substantial efforts and resources to update their grid codes (in addition to the standard periodic review and revision process) to incorporate realistic and practical (both technically and economically) provisions for RER generation
NEPCO
National Electric Power Company , Jordan
GRID CODES
Current versions of grid codes and connection requirement documents contain detailed specifications on aspects including, but not limited to, the following:- Operational control (start-up, shut-down, power ramp rates) Power cap & constraints/curtailment Voltage and frequency operating ranges Frequency regulation Reserve Reactive power capability and voltage control Fault ride through Protection
NEPCO
National Electric Power Company , Jordan
RECOMMENDATIONS
Recommendations for reducing the obstacles for RERs generators embedded in the interconnection process fall into two categories:-
Modifications to interconnection policies and procedures, which would reduce frustrations experienced by generators awaiting interconnection; and Modifications to transmission planning processes, which would make critical interconnection information available to potential generators ahead of time, enabling preliminary analysis to be completed prior to beginning the interconnection process.
NEPCO
National Electric Power Company , Jordan