Announcement

Collapse
No announcement yet.

Electricity Production In Armenia

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Electricity Production In Armenia

    ELECTRICITY PRODUCTION IN ARMENIA

    [ Part 2.2: "Attached Text" ]

    Posted on July 25, 2013 by Areg Gharabegian in Featured, Special
    Reports // 0 Comments

    Electricity production in Armenia has fully recovered from the major
    problems it was facing in the early 1990's and is now a reliable
    industry. Armenia's energy issues began after the 1989 earthquake,
    when the government of Soviet Armenia was forced to close the Metzamor
    nuclear power plant under mounting pressure from a public that,
    fearing a Chernobyl-type catastrophe, was concerned about safety.

    1x1.trans Electricity Production in Armenia

    Figure 1: Available electricity generation and production

    In 1987, people in Armenia started demonstrating against Soviet rule.

    After the devastating earthquake of 1989, some activists started
    demanding the closure of the Metzamor nuclear plant as well as the
    Nairit chemical and rubber producing complex. Shutting down the nuclear
    plant was the worst mistake in recent Armenian history. Had the nuclear
    plant not been closed, Armenia would not have plummeted into the dark
    ages and, as a result, would have not lost one-third of its population
    to forced economic out-migration. After more than 20 years, Armenia
    still has not recovered from the devastation caused by these closures.

    Even though Armenia had excess electricity production in 1989 and
    was exporting electricity to other Soviet republics, shutting down
    one-third of its electricity production capacity was bound to have
    some negative impact on industry and economic wellbeing. However,
    the main electricity production problems began only after the Soviet
    Union's collapse, after Armenia's independence, and the Karabagh War.

    Armenia had been relying on gas and oil imports from Russia to operate
    its thermal power plants. Gas was being delivered via pipeline,
    and oil via train, both traversing Azerbaijan. When, as a result
    of the war, Azerbaijan imposed a blockade, Armenia was cut off
    from its gas and oil supplies. Due to the lack of required fuel,
    thermal power plants were shut down and Armenia had to rely only
    on its hydropower production from the Sevan-Hrazdan and Vorotan
    Cascades. These two hydropower cascades were not operating at full
    capacity because required parts could not be delivered from Russia
    via Azerbaijan. Industrial production ceased due to the lack of
    electricity and fuel, resulting in the economy's collapse.

    Armenia's energy sector has seen tremendous change in the last two
    decades. Restarting the second unit of the nuclear power plant in
    1995 helped bring an end to the energy crisis. The availability
    of electricity service has increased from just a few hours a day
    2 decades ago to 24 hours a day. Electrical production companies
    have emerged from a heavy dependence on state funding to commercial
    viability. However, the same issues that caused the collapse of
    the system in the mid-1990's still exist. Armenia still relies on
    imported gas and oil for its energy production. A majority of the gas
    is imported from Russia via a pipeline through Georgia and a small
    amount of gas is being imported from Iran via a pipeline. Gasoline
    and heavy fuel oil are delivered from Russia via tanker trucks.

    Uranium for operating the nuclear power plant is also imported
    from Russia.

    1x1.trans Electricity Production in Armenia

    Figure 2: The Hrazdan Thermal Power Plant

    Armenia's electricity system has 3,914 Mega Watts (MW) of installed
    capacity, of which only 73 percent or 2,845 MW is currently
    operational. Electricity is produced by three-generation sources:
    nuclear (34 percent), thermal (32 percent), and hydropower (34
    percent). The share of thermal and hydropower plants in the capacity
    and production mix has increased in recent years as new plants have
    been built and weather conditions have been favorable for hydropower
    production.

    The Metzamor nuclear power plant provides base load capacity. The
    Vorotan and Sevan-Hrazdan Cascade hydropower plants provide daily load
    regulation, while thermal power plants operate to meet winter's peak
    demand and to serve as the base load a few weeks in the fall when
    the nuclear power plant goes offline for maintenance. (See Figure 1
    for the composition of available capacity and production in Armenia.)

     

    Thermal power plants

    The main thermal power plant complexes are in Hrazdan and Yerevan.

    The original equipment at these two gas-fired plants has worked beyond
    the 200,000 work-hour design life and does not meet international
    technical, economic, and environmental performance standards. These
    plants have not undergone necessary capital improvements in recent
    years, and operations and maintenance have been consistently
    under-funded. The plants run on outdated Soviet technology, and
    obtaining spare parts for maintenance is difficult and costly as the
    equipment is no longer manufactured.

    The construction of the Hrazdan thermal power plant was started in 1963
    with a total capacity of 1,110 MW. The first unit became operational
    in 1966. Its fuel efficiency is 35 percent compared to 57 percent for
    a new, efficient thermal power plant. In 2004, Armenia transferred
    the Hrazdan thermal power plant complexes to the Russian Federation
    as a means of satisfying certain state debts.

    ArmRusGasprom, the Russian owner of the Hrazdan complexes, has recently
    completed construction of a new 440 MW Hrazdan 5 thermal power plant,
    which is an efficient plant meeting today's operational standards. (See
    Figure 2 for a view of the Hrazdan thermal power plant complex.)

    In 1963, the first of seven turbines of the Yerevan thermal power plant
    began operation, with a capacity of 50 MW. The total installed capacity
    of the plant complex is 550 MW, but only one of the older generating
    units remains operational today, with a capacity of approximately 50
    MW. This complex has operated for more than 40 years, although the
    lifespan of thermal power plants throughout the world is 30 years. A
    new 240 MW combined cycle gas turbine at the Yerevan thermal power
    plant complex came online in 2010, and was constructed with a $247
    million loan from the Japanese Bank for International Cooperation. The
    loan was given in 2007 with an interest rate of 0.75%, a 40-year term,
    and a 10-year grace period.

    This gas-powered turbine is able to generate approximately one-quarter
    of Armenia's current electricity output. The unit is also twice as
    efficient as the plant's decommissioned units.

    1x1.trans Electricity Production in Armenia

    Figure 2: The Hrazdan Thermal Power Plant

    The new plant was constructed with an aim to reduce the generation
    cost of 1 KW/hour of electricity from the current 400 drams to 160-170
    drams. Construction of the second and third power plants on the same
    site is being considered by the government of Armenia.

    There are also two other small plants in Armenia. The Yerevan
    Thermoelectric Plant has only one turbine with a capacity of 50 MW, and
    produces electricity, steam, and heat mainly for the Nairit Chemical
    Plant. The Vanadzor Thermoelectric Plant, with a capacity of 50 MW,
    is currently not operating; this will change only if the Vanadzor
    chemical complex becomes operational.

     

    Nuclear power plants

    The Metzamor nuclear power plant was built during the 1970's about 19
    miles west of Yerevan. The total capacity of the two units at Metzamor
    is close to 800 MW, but only one of the units is operational. The
    plant is one of just a few remaining nuclear power reactors in the
    world that was built without primary containment structures. It has
    been operated by a Russian company, Inter RAO UES, since 2003, as
    part of an agreement to help pay off Armenia's debts to Russia. The
    400 MW operational unit is beyond its 30-year design life and is
    scheduled for decommissioning in 2021. Armenia will face a major
    supply-demand gap once the nuclear power plant is retired; that is
    why the government of Armenia is trying to secure financing to build
    a new nuclear power plant, which is estimated to cost $4 billion.

     

    Hydro power plants

    Historically, hydropower has constituted a large part of Armenia's
    electrical energy production resources. There are two large hydropower
    cascades, Sevan-Hrazdan and Vorotan, which have a combined installed
    capacity of approximately 960 MW. As of 2012, there were more than
    110 commercial size small hydropower power plants (SHPP) operating
    in Armenia. About 60 of these were developed and constructed in the
    past 10 years. There are also numerous small (micro) units that are
    operated by individuals to satisfy their own electrical needs. The
    forecast is that SHPP generation will grow from its current 5 percent
    penetration level of total electricity generation to 10 percent over
    the next 10 years.

    The Sevan-Hrazdan Cascade hydropower system is one of the most
    important hydropower generation assets in Armenia. It was built between
    1936 and 1961. The system consists of seven run-of-the-river hydropower
    stations, canals, and reservoirs between Lake Sevan and Yerevan. With
    a total installed capacity of 565 MW, it currently supplies about 10
    percent of the country's electricity, and plays a significant role in
    supporting the balance of the electric grid and providing affordable
    energy. This system is majority owned by the Russian RusHydro Company,
    one of the largest hydropower companies in the world.

    The Vorotan Complex is the second largest hydroelectric power plant
    in Armenia. It has three stations with a total installed capacity of
    404 MW. The first unit came online in 1970, and the last one in 1989.

    (See Figure 3 for Unit 2 of the Vorotan Complex.) The Armenian
    government is planning to sell the Vorotan Cascade to ContourGlobal,
    L.P., which is a New York-based independent power producer. It
    develops, acquires, and operates electric-power and district-heating
    resources primarily in underserved and overlooked markets worldwide.

     

    System reliability

    Reliable and affordable energy supply is critical for economic
    growth. The Armenian government has set a target of up to seven
    percent GDP growth, which is expected to result in increased demand for
    energy resources. Key areas of economic growth include the industrial,
    commercial, and retail services sectors. These sectors accounted for
    45 percent of GDP in 2011 and have been the largest contributors to
    GDP growth over the past 2 years. They sectors are energy-intensive,
    accounting for 81 percent of non-residential electricity consumption
    and 51 percent of total domestic consumption.

    An old transmission and distribution infrastructure contributes to
    energy security problems. Transmission infrastructures in Armenia are,
    on average, more than 45 years old and require rehabilitation.

    Roughly 33 percent, or 520 km. of power lines, are in poor condition
    and require urgent rehabilitation at a cost of $80-$100 million. The
    old infrastructure exacerbates Armenia's energy security problems.

    The available capacity of domestic hydropower resources is lower
    than their installed capacities, and old thermal power plants make
    inefficient use of valuable imported fuels.

    The country's heavy reliance on imported natural gas to generate
    much of its power makes the sector susceptible to fuel supply
    interruptions. Inefficient generation, transmission, and distribution
    infrastructure means that the power sector must use more imported
    fuel to provide the same level of electricity service than it would
    if this infrastructure were more efficient.

     

    Energy-generating companies

    Currently there are four energy-generating companies in Armenia that
    produce more than 80 percent of electricity in the country. These are
    the Armenian Nuclear Power Plant, with a total gross output capacity
    of 407.5 MW; the RazTES, with a gross output capacity of 1,110 MW and
    a functioning output capacity of 760 MW; the Sevan-Hrazdan Cascade
    hydroelectric power plant, with a gross output capacity of 550 MW;
    and the Vorotan Cascade hydroelectric plant, with a gross output
    capacity 400 MW.

     

    Renewable energy resources

    Armenia is planning to diversify its electricity generation and fuel
    supply sources by exploiting domestic renewable resources.

    Significant renewable energy potential exists, but the government
    has struggled to attract private investors for non-hydro renewable
    projects. It is estimated that Armenia has more than 1,000 MW of
    technically viable capacity from solar photovoltaic (PV), 300-500
    MW from wind, 250-350 MW from unexploited small HPPs, and 25 MW from
    geothermal. There is also potential for producing roughly 100,000 tons
    per year of biofuel from local plants to be used as gasoline additive.

     

    Electricity trade with neighboring countries

    The Armenian government has negotiated electricity trade agreements
    with Iran and Georgia to improve energy security and affordability.

    It negotiated a gas-electricity swap arrangement with Iran under
    which it exports 3 kWh of electricity in exchange for 1 m3 of gas
    from Iran. Trade with Georgia is limited because of an asynchronous
    connection between the two systems. In the short-term, increased trade
    with Georgia would allow Armenia to export its excess hydropower
    generation during the spring and summer to Turkey via Georgia. In
    the long-term, if Armenia builds a new nuclear plant, additional
    transmission capacity will be needed to export electricity from the
    plant, as the planned nuclear plant will be significantly larger than
    what is needed for domestic demand. If Armenia does not build a new
    nuclear plant, additional transmission interconnection capacity could
    help Armenia meet its supply gap with relatively cheap hydropower
    imports from Georgia.

    http://www.armenianweekly.com/2013/07/25/electricity-production-in-armenia/



    From: Emil Lazarian | Ararat NewsPress
Working...
X