Usage of Renewable Energy in Saudi Arabia Report

Introduction

This paper constitutes a report based on data available at Table 1, Table 2, and Table 3; the figures from these tables have been developed to reflect usage of Renewable Energy (RE) electricity as the optimal source for sustaining power demand in Saudi Arabia. The scenario supposes that Concentrated Solar Energy (CSP) technology has a more effective potential for sustainability the kingdom’s electricity at the least cost.

The report also reflects on RE economics where the instance of KA-Care has been revised to examine the model for electric energy demand (and factors influencing the demand; such as efficiency gains and population), as well as the supply model (that has been developed to reflect the portfolio of the basic energy success). Supply is assumed to meet demand for the benefit of power balances that stands at a firm capacity of peakload x 125%.

Table 1: A reflection of Saudi Arabia electricity consumption and supply

Table 1 comprises of data from the year 2009 to 2020 and shows energy consumption at various levels of economy such as industrial, residential, transportation, and commercial/ public services.

The table shows a steady increment in consumption at the various levels whereas the transport sector is envisaged not to use solar energy, however. The increment in demand at the other sectors reflects predicted population and economic increases.

The Functionality of Renewable Energy: Concentrated Solar Energy (CSP) in Focus

It is usual that several people limit solar energy to the use of photovoltaic panels which are commonly located on rooftops and power very limited facilities (Zalba 253). The reason for this is based on the fact that usage of the panels or similar devices for acquiring electric energy has been more common, and perhaps is at very cheap costs. Solar energy however has wider applications, including CSP.

Figure 1 shows a Parabolic Trough System as a CSP unit; most of these units are usually quite large installations which cover several acres and constitute reflective mirrors as collecting units which convey sun rays based on their orientation (Iorfa 56; Mills 23). Performance effectiveness is largely dependent on amount of temperature and design of the trough (Mills 283).

Figure 1. Parabolic Trough System Schematic Diagram

The receiving units comprises of a heat absorbing unit (this is otherwise known as the heat transfer fluid) that could be transferred to a storage device some place away. The workability of CSP is also achieved through Power Tower and Dish Engine systems as shown in Figure 2 and Figure 3.

Figure 2: (A) Power Tower Schematic Diagram (B) Dish/engine System Schematic Diagram

Although, these systems vary structurally from one another, the general working principles are similar which involve the conversion of energy from the sun the electric energy, and are quite economical in terms of environmental friendly, management and maintenance. It is this energy systems that has been propose for usage in Saudi Arabia as show in Table 1 above.

Rationale for Using CSP as an Electric Energy Alternative in Saudi Arabia

The tendency of CSP to generate very minimal greenhouse-gas emissions makes it highly adoptable anywhere in the world especially in the present society where there is a very high demand for safe energy as an alternative to mitigation of climatic changes.

These energy alternatives are flexible in terms of enhanced security, and have ‘an inherent capacity to store heat energy for short periods of time for later conversion to electricity’ (Forsberg et al. 141).

In combination with thermal storage devices, concentrated solar energy could be able to generate electricity continually even with the absence of visible light as the devices and systems are developed with the potential of backing up power from fuel combustions.

As an edge, CSP are highly reliable in dispatching to grids when there is the need for whereas the system offers a very effective technology for Saudi Arabia, it also promises a cleaner, safer, more reliable, and even cheaper energy alternative.

Interestingly, it has been reported that Saudi Arabia has indicated a strong political will towards the adaptation renewable energy and could lead exploding the sector within the Mid-East and North Africa [MENA] (DLR 9). This has been evident as there is an onward development of an energy plant by the government through SolFocus presently (DLR 32).

The kingdom has the desire of diversifying the economy and improving technology, which also explains why the need for a safer and indeed more economical friendly energy is a welcome alternative. However, (Iorfa 45) noted that the kingdom has not developed an adequate policy to maximize renewable energy, particularly CSP.

Challenges of Developing CSP in Saudi Arabia Presently

One the most recurrent issue with Saudi Arabia’s potential to effectively maximize the usage of CSP has been consistently attributed to the lack of a committed framework- Iorfa (56) notes that there is a development to structure a framework to this effect, however.

The so desired framework would take care of technical issues such as taking care or at least controlling the highly dusty nature of the environment which is always caused by sand storms.

The region also has deficit of water sources which could be used for cooling systems. Table 2 shows energy system stability for the year 2010; this includes the economic potential, the instalment capacity, and the capacity credit where the various alternatives of renewable energy are considered.

Table 2. Energy system stability for the year 2010

In the Table, the Potential for adopting CSP in the Kingdom for the year 2010 rated 124,560 TWh and has a capacity credit of 90% (the highest achieved in any energy sector). These figures reflect a perspective future for energy supply – as also shown in the following tables for year 2020, 2030, 2040, and 2050.

Table 3. Energy system stability for the year 2020 -2030

Table 4. Energy system stability for the year 2040 -2050

Table 5 shows system balances of the various alternatives to energy for the kingdom in the year 2010 with key focus on economic potentials, installation capacity, capacity factor, and the general production.

Table 5. System balances of the various alternatives to energy for the kingdom in the year 2010

Again this table identifies the leading benefit of adopting CSP for power generation. Table 6 and Table 7 show the system balances for subsequent years from 2020 to 2050.

Table 6. System balances for 2020- 2030, and Table 7. Balances for 2040- 2050

Efficiency of the CSP

From Figure 5, 6 and 7 show the balances of usage of energy in Saudi Arabia over a period of four decades. During this period, CSP was by far the most continually efficient energy alternative and returned and equilibrium in quantity produced against the quantity of energy that is/would be consumed.

The general principle for the functionality of the CSP is the conversion of solar radiations to heat through the use of a receiving system with an efficiency of η_Receiver. The heat is afterwards transformed to work which constitutes Carnot efficiency, η_Carnot, and the solar radiations would provide a temperature of T_H thereby causing a temperature of T° to be absorbed. By mathematical implication therefore:

η = η_Receiver * η_Carnot

η_Carnot is given as 1 – T⁰ / T_H, and η_Receiver = (Q_absorbed – Q_lost) / Q_solar.

Q_absorbed, Q_solar, and Q_lost are the fluxes which would be absorbed by the system, the incoming flux from the sun, and the flux which would be lost in the process. It is beyond the scope of this paper however to emphasize the scientific details involved with the process and it could therefore be assumed that losses in flux are based on radiation but further derivatives maybe produced by application of Boltzmann’s law.

The Cost involved with CSP installations in Saudi Arabia

In the year 2009, the cost for developing a CSP control unit with an output of a watt was quoted to be between two to four dollars; this excludes the energy source as it is always taped free from the sun.

Based on these figures, generating a 250MW CSP work unit may cost between six hundred to a thousand million dollars [or between $0.12 to $0.18/ kwh] (TEEJ). With growing investor interest in CSP, such google, there is the tendency that in 2012, the cost for generating CSP electricity in Saudi Arabia, and indeed worldwide would reduce reasonably.

Future of CSP

The following projections have been made for energy utilization in Saudi Arabia from 2020 to 2050 as shown in Table 8, Table 9, Table 10, Table 11, Table 12 and Table 13.

Table 8. Projections for energy utilization in Saudi Arabia from 2007 to 2009 (ECRA,)

Table 9. Projections for energy utilization in Saudi Arabia from 2010 to 2017

Table 10. Projections for energy utilization in Saudi Arabia from 2018 to 2026

Table 11. Projections for energy utilization in Saudi Arabia from 2027 to 2036

Table 12. Projections for energy utilization in Saudi Arabia from 2037 to 2045

Table 13. Projections for energy utilization in Saudi Arabia from 2046 to 2050

These statistics are relevant as they express a growing demand for energy in the kingdom and suggest quantity of energy to be made available at various years up to the year 2050. Numerous studies have been conducted to ascertain the potentials of having a sustained CSP globally up to 2050 and results show that at least 25% of the energy used throughout the world by the year 2050 would be CSP.

This is similar to the valued presented in the tables above. Increased investment in the sector would be 92.50 billion euros as against the present 2.1 billion euros globally. Table 14 below show stipulated CSP growth as noted by Iorfa (12):

Table 14. Stipulated global CSP growth from 2015 to 2015 (Iorfa 12).

The significance of these indications is an overwhelming reducing in the price of generating CSP electricity by the year 2050, as there is a continual increment of investor interest in the sector as well an advancing application of technology to the sector.

At the moment, the European Union is considering the development of the sector by committing $774.5 billion for the networking of CSP plants especially in NEMA and other regions around the Sahara for the facilitation of creation of ‘a new carbon-free network linking Europe, the Middle East and North Africa’ (Iorfa 14). This has been supported majorly by investors from Germany.

Advantages of CSP in Saudi Arabia

Saudi Arabia, like any other country within the MENA region is endowed with an amazing amount of sunlight supply and make available the most friend CSP environments anywhere in the world as reflected in the instance of KA-Care (K.A.CARE VALUE CHAIN ASSESSMENT 12).

Equally the availability of largely uncultivated lands makes locating of plants even more cost effective, and for the construction network of roads for transmitting grids would be easily achieved. The closeness of the kingdom to Europe is an added advantage for export of energy as Europe is in need of green energy and attaches at lot of value to the development of CSP.

The Saudi Arabian government must take more practical steps towards maximizing the adoptability of CSP against the highly challenging start up costs. Several factors have to be put together for the actualization of more friendly costs in the development of CSP projects within Saudi Arabia to include local incentives, concession of finances, as well as post-production green electricity export to UK and other European regions.

By and large, financial concession may not be very critical, and generating costs could be remarkably lows. By implication, there will be a corresponding need to enhance the level of investment which would bring about reduction in cost of CSP generation.

Fact Sheet

Solar Technologies

1. CSP technologies are based on the concept of concentrating solar radiation to be used for electricity generation with conventional power cycles using steam turbines, gas turbines or Stirling engines.
2. The main four CSP technologies are: parabolic trough systems, linear Fresnel systems, dish systems and power tower or central receiver system with distributed reflectors (heliostats).
3. CSP systems achieve average solar-to-electricity efficiencies of about 10-15 per cent.
4. CSP plants can work in hybrid operation, i.e. can be operated with fossil fuel as well as solar energy.
5. The CSP systems availability is about 90 per cent.
6. Individual CSP plants are now typically between 50 and 280 MW in size, but could still be larger.
7. The total CSP capacity whether in operation or under installation was 1,023 MW by mid of 2009.
8. Most of the projections assume advanced industry development, thus CSP could meet up to 7 per cent of the world’s projected power needs by 2030 and a full quarter by 2050.

Commercial Viability Of Renewable Energy Projects

1. It is frequently assumed that, if any renewable technology reaches a cost of US$0.10 per KWh of electricity generated (assuming price of oil around US$70/barrel), it can be considered as being economically competitive or close to competitiveness.
2. Provided that resources and market conditions are favorable, the economically or near economically renewable energy technologies are small and large hydropower, onshore wind power, geothermal power and biomass power.
3. Solar PV and CSP technologies are expected to be economically competitive on the long term when cost reductions stemming from the continued R&D seeking higher productivity and efficiency as well as large-scale applications (economy of scale) are achieved.
4. For the ESCWA region, wind and solar technologies are considered the most promising as there are considerable potentials that would allow for large scale grid-connected electricity generation.
5. In general, EE measures are self financing with expected benefits to be forecasted in detailed energy audits.

Large-Scale Renewable Energy Projects In The Escwa Region

1. Egypt is the leader with a total capacity of 430 MW in wind energy in 2009.
2. Several countries have adopted ambitious goals to increase reliance on wind energy:
   1. In Egypt, it is expected that 12 per cent of the total electric energy generated by the year 2020 will be from large-scale renewable energy projects.
   2. Jordan’s plans include the establishment of wind farms with a capacity of 600 MW until 2020.
3. Additionally, it is expected that the envisaged Shams Ma’an PV project in Jordan would have an initial capacity of 100 MW, which can be expanded to 200 MW.
   1. The United Arab Emirates is investing heavily and extensively in wind power in many Arab and foreign countries.
   2. Saudi Arabia began the preparation of feasibility studies for the establishment of two wind farms, the first with capacity ranging from 20 to 40 MW, and the other with a capacity of 10 MW.
   3. Yemen has a 60 MW wind farm in the development phase.
   4. In addition to this, many countries, such as the Sudan and Syria, carry out resource assessment studies for wind energy as a prelude to setting goals commensurate with their potential. It is worth noting that preliminary assessments indicate that many ESCWA member countries possess potentials that would allow utilizing wind energy on a commercial scale.
4. Several ESCWA member countries engaged in solar energy projects:
   1. Egypt started the construction of its first grid-connected large-scale CSP project Integrated Solar Combined Cycle (ISCC) of 140 MW with 20 MW solar share, which is expected to be operative by late 2010.
   2. Egypt intends to build two new CSP projects with 50 MW each, as well as a 20 MW large-scale gridconnected PV plant in south Egypt by the year 2017.
   3. Kuwait has completed a technical feasibility study for the construction of a solar thermal power plant with a capacity of 280 MW, including 60 MW solar component.
   4. In the United Arab Emirates, the Abu Dhabi Company for Future Energy, known as Masdar, has already connected a 10 MW PV plant to the grid, and expects the 100 MW Shams 1 CSP plant to be online by late 2011, and the Shams 2 plant by mid-2013.
   5. Masdar is also studying the feasibility of the establishment of some plants to produce solar electricity and desalinated water from 500 MW solar plants in Arab countries or abroad.
   6. Jordan is intending to build a 100 MW PV plant.
   7. Yemen has launched rural electrification projects based on PV systems in cooperation with Germany. ESCWA is also finalizing the Ka’awa Village PV Electrification Project in Yemen.
5. In November 2007, the Gulf countries of the Organization of Petroleum Exporting Countries (OPEC) pledged a total of US$750 million to a new fund to tackle global warming through research for a clean environment.
   1. Kuwait, Qatar, and the United Arab Emirates pledged US$150 million each for the fund.
   2. Saudi Arabia, the world’s biggest oil exporter, will invest US$300 million in the fund.

Conclusion

This paper presents a report development and sustainability of Renewable Energy (RE) electricity as the optimal source for sustaining power demand in Saudi Arabia. It has noted that Concentrated Solar Energy (CSP) technology has a more effective potential for sustainability the kingdom’s electricity at the least cost.

The report also reflects on RE economics where the instance of KA-Care has been revised to examine the model for electric energy demand (and factors influencing the demand; such as efficiency gains and population), as well as the supply model (that has been developed to reflect the portfolio of the basic energy success).

Works Cited

Forsberg, Charles, Per Peterson, and Haihua Zhao. “High Temperature Liquied Fluoride Salt Closed Brayton Cycle Solar Power Towers.” Journal of Solar Energy Engineering 129 (2007): 141

German Aerospace Center (DLR). “Concentrating Solar Power for the Mediterranean Region Final Report”. Med-CSP (2011): 9.

German Aerospace Center (DLR). “Trans-Mediterranean Interconnection for Concentrating Solar Power Final Report”. Trans- CSP (2011): 32.

Iorfa, James. Gains of Renewable in Africa and the Middle East. Ibadan: University Press, 2012. Print.

K.A.CARE VALUE CHAIN ASSESSMENT. Renewable Energies: Industrial Impact of Core Localized Activities. Saudi Arabia: K.A. CARE, 2011. Print.

Mills, David, and Morrison L. Graham. “Compact Linear Fresnel Reflector Solar Thermal Powerplants.” Solar Energy 68 (2000): 263-283.

Mills, David. “Advances in Solar Thermal Electricity Technology.” Solar Energy 76 (2004): 19-31.

Zalba, Belen, Jose Marin, Luisa Cabeza, and Harald Mehling. “Review on Thermal Energy Storage with Phase Change: Materials, Heat Transfer Analysis and Applications.” Applied Thermal Engineering 23 (2003): 251-283.