Capacity Configuration Optimization Of Wind Solar Combined ...

How can Sierra Leone improve its low electricity access rate?

Sierra Leone is taking significant steps to improve its low electricity access rate by committing to various renewable energy projects. These initiatives, driven by the country's Presidential Initiative on Climate Change, Renewable Energy & Food Security (PI-CREF), include a major hydropower and solar PV project.

Is there a wind energy system in Sierra Leone?

There is a known wind energy system of 5kw in Sierra Leone, located in the Bonthe District, along the south coastline area. Energy consumption in Sierra Leone is dominated by biomass, which accounts for over 80% of energy used.

What challenges does Sierra Leone face in developing electricity infrastructure?

However, Sierra Leone faces multiple challenges in developing its electricity infrastructure. According to the Ministry of Energy, the national electrification rate stands at 26%, with a dramatic drop to 6% in rural areas where the majority of the population resides.

What is in Sierra Leone's energy roadmap?

A key part of the roadmap is to incorporate Sierra Leone's abundant renewable energy resources, ensuring a secure energy supply to rural communities and boosting the national economy. One of the most significant projects in this roadmap is the planned expansion of the Bumbuna Hydroelectric Dam.

Can Sierra Leone double its power output to 12MW?

This station, which currently has a generation capacity of 6MW, has the potential to double its output to 12MW. In addition to the Goma Hydropower Station update, Sierra Leone signed an MoU with the European Union earlier this month to deploy 57 solar mini-grids in rural communities that currently lack electricity.

How long will it take to build a hydro-solar plant in Sierra Leone?

The recently signed Memorandum of Understanding (MoU) for this ambitious project outlines a phased approach, with plans to build a 200MW hydro-solar plant. This plant, which is expected to be completed in two to three years, will almost double Sierra Leone's total installed electricity capacity in its first phase.

What is energy storage in Spain?

It targets large-scale energy storage projects in Spain. It focuses on technologies like standalone battery energy storage systems (BESS), pumped hydro energy storage (PHES), and thermal energy storage. The program supports hybrid projects, which combine storage with renewable energy, such as solar or wind farms.

What will Spain's energy plan look like in 2030?

By 2030, Spain expects to install 22.5 GW of energy storage projects, including included battery energy storage, pumped hydropower and solar thermal plants. The plan also aims for 76 GW of solar power, 62 GW of wind power, which includes 3 GW of offshore wind, along with 1.4 GW of biomass projects.

How much money will Spain spend on energy storage projects?

Spain's ministry for the ecological transition said on Friday it will allocate EUR 700 million (USD 799.4m) in grants through competitive tendering to support large-scale energy storage projects in an effort to improve grid flexibility and integrate more renewables. Vanadium redox flow battery installed at the Son Orlandis solar farm in Mallorca.

How will Spain increase its energy storage capacity?

Spain has launched an ambitious €700 million (around $796 million) program to increase its energy storage capacity. This plan will add 2.5 to 3.5 gigawatts (GW) of storage. It includes pumped hydro, thermal energy storage, and battery systems.

Why does Spain have so many wind and solar power?

The abundance of wind and solar in Spain's energy mix reflects natural geographical advantages and years of deliberate policy decisions to promote renewables over fossil fuels. Spain was one of Europe's renewable energy pioneers, installing more than 20 GW of wind power in the early 2000s.

Why should Spain invest in energy storage?

Investing in energy storage helps Spain meet its climate goals. This includes achieving carbon neutrality by 2050. Storing renewable energy instead of wasting it helps the country rely less on fossil fuels. This also cuts down greenhouse gas emissions. Pumped hydro, thermal storage, and battery systems are effective technologies.

Are data centres and telecommunication base stations energy-saving?

Data centres (DCs) and telecommunication base stations (TBSs) are energy intensive with ∼40% of the energy consumption for cooling. Here, we provide a comprehensive review on recent research on energy-saving technologies for cooling DCs and TBSs, covering free-cooling, liquid-cooling, two-phase cooling and thermal energy storage based cooling.

How does a DC & TBS cooling system work?

3. Cooling methods and performance The cooling of DCs and TBSs is mainly achieved using computer room air conditioning (CRAC) units, which consists of a vapour compression refrigeration system for cooling and a cold/hot aisle layout (Fig. 3) (Nada et al., 2016).

How does a heat pipe based cooling system work?

Wang et al. developed a heat pipe based cooling system containing a phase change material (PCM) unit to extend the effective cooling time of the heat pipe and to maximize the use of the outdoor cooling source. This PCM unit was integrated with a condenser, absorbing cold energy from the external environment.

How does a water-side indirect free cooling system work?

Fig. 8 shows a water-side indirect free cooling system (Nadjahi et al., 2018), which usually uses a heat exchanger or a cooling tower to obtain the cold energy from the environment cold water to cool the indoor air in DCs and TBSs.

How to maintain the indoor temperature of a DC or TBS?

To maintain the indoor temperature of DCs or TBSs, the computer room air conditioning (CRAC) system and chilled-water system have been developed which are energy intensive (Borah et al., 2015) and contribute more carbon emissions.

Is immersion cooling better than single-phase cooling?

Kanbur et al. (2021) studied two different immersion cooling systems for DCs, including single-phase and two-phase systems (Fig. 10), and performed thermodynamic assessments. Their results showed that the two-phase immersion cooling system had a COP of 72–79% higher than that of the single-phase cooling system over a power range of 6.6–15.9 kW.

Who is constructing a solar power plant in Kenya?

French firm Voltalia is the contractor for the engineering, procurement and construction (EPC) of the third largest solar power plant in Kenya, with a capacity of 100 MW. The electricity from the plant will be sold to KPLC at US$0.12 per kWh.

Is Kenya a good country for solar energy?

Kenya is well-known for its abundant geothermal energy, but it also has significant potential for solar and wind energy. The government aims to increase solar power generation capacity to 600 MW by 2030, up from less than 100 MW currently installed (South Africa's largest solar project alone is nearly 100 MW.

What is the largest solar project in Kenya?

The Garissa solar plant, the largest solar project in Kenya and East Africa, is a $138 million utility-scale solar photovoltaic (PV) farm located in Garissa County. For more information, explore the Kenya Solar Investment Report 2022, which includes a database of solar projects, investment details, players, and 2022 news per project.

How much does a wind-storage system cost?

The optimal storage capacity is 38MWh when the charging and discharging efficiencies are 95%, the energy storage cost is 150 $/kWh. The total annual income is calculated as 13.23 million US dollars from the wind-storage coupled system.

What is the revenue of wind-storage system?

The revenue of wind-storage system is composed of wind generation revenue, energy storage income and its cost. With the TOU price, the revenue of the wind-storage system is determined by the total generated electricity and energy storage performance.

How much money does a simulated wind-storage system make?

When the energy storage system lifetime is of 10 years, and the cost is equal to or more than 375 $/kWh, the optimization configuration capacity is 0 MWh, which means no energy storage installation. The annual revenue of the simulated wind-storage system is 12.78 million dollars, which is purely from the sale of wind generation.

How integrating energy storage technologies into wind generation improve economic performance?

The economic performance by integrating energy storage technologies into wind generation has to be analyzed for commercial development . One solution is to implement the electricity price arbitrage strategy. The real-time pricing (RTP) varies in the market throughout a single day due to the different patterns of supply and demand.

Does energy storage cost affect the optimal installation capacity and annual income?

Energy storage system optimal capacity and annual revenue versus cost As shown in Fig. 8 and Table 5, the efficiencies for charging and discharging are set to be 85%, and the influence of the energy storage cost and lifetime on the optimal installation capacity and annual income is analyzed.

Can energy storage system integrate into a wind farm?

An optimization capacity of energy storage system to a certain wind farm was presented, which was a significant value for the development of energy storage system to integrate into a wind farm. A high penetration of various renewable energy sources is an effective solution for the deep decarburization of electricity production [1, 2, 3].

What is the energy balance in Lebanon?

Renewable energy currently plays a marginal role in the energy balance of Lebanon. It shares less than 5% of the TPES and less than 10% of the electricity production. Hydro power is the unique renewable source used in electricity generation, although Lebanon has the potential to benefit from other resources, especially solar and wind.

Will Lebanon be able to supply 30% of its electricity in 2030?

The analysis shows that Lebanon has the potential to supply 30% of its electricity consumed in 2030 from renewables, based on the updated targets and most recent electricity reform paper released in 2019.

Will Lebanon's electricity generation be forecasted?

Dagher and Ruble modeled three possible future paths for Lebanon's electricity using LEAP (Long range Energy Alternatives Planning System) software; however, the study didn't reflect a possible forecast for electricity generation as the percent-share dispatch rule was used based on the percent share of fuels in 2006.

How is electricity generated in Lebanon?

Electricity, in Lebanon, is principally generated through thermal power plants, in addition to small amount that comes from renewable energy resources through the several, long-ago established hydropower plants.

Is solar irradiation available in Lebanon?

Solar photovoltaic (PV) is used to generate electrical energy by converting solar radiation into electrical current. Solar irradiation is readily available in Lebanon; however, adopting this technology faces several barriers. For instance, high initial cost, low efficiency per unit area, lack of PV market and immaturity of technology.

Are solar powered cellular base stations a viable solution?

Cellular base stations powered by renewable energy sources such as solar power have emerged as one of the promising solutions to these issues. This article presents an overview of the stateof- the-art in the design and deployment of solar powered cellular base stations.

How much solar PV should be compared to wind power in Hungary?

It is shown by our EnergyPLAN model that the solar PV capacity should be 1.1 times the wind power capacity which is a huge contrast to the current situation where solar PV is almost 10 times the wind power capacity in Hungary. Projection of total electricity consumption according to energy scenarios.

Should a combination of wind and solar be investigated in Hungary?

The combination of wind and solar in Hungary should be at least investigated despite some national plans disregarding their importance as the results show some compatibility with changing demand patterns.

How can Hungarian energy systems be adapted?

Hungarian energy system. These can be adapted to regions foreseeing an than 10% of the gross electricity consumption). this study. Based on the analysis of wind and solar resources, the to solar power of Pw/Ps = 0.9. simulated. The exception is the generation portfolio P5 that has wind energy as the only vRES.

Which renewable source is used in large amounts in Hungary?

renewable source utilized in large amounts in Hungary is biomass. The in wind power capacity. Wind power capacity expansion has been reasonable geographic or economic reasoning [ 89 ]. Considering the larly wind energy.

Should the Hungarian energy transition be based on wind and solar resources?

Wind and solar resources should receive more attention in the planning of the Hungarian energy transition. However, the expansion of these vRES needs to happen simultaneously with the restructuring of the whole system [ 27 ].

What is a consid- electricity source in Hungary?

Consid- electricity source in Hungary. a country that is somewhat behind in the energy transition. 3. Materials and methods the energy scenarios. Section 3.1 described the modeling tools. The 3.5 ). 3.1. Energy system model consumption from 2000 to 2020. The Low Emissions Analysis Platform forestry; and others).

Are mechanical energy storage systems efficient?

Mechanical energy storage systems are very efficient in overcoming the intermittent aspect of renewable sources. Flywheel, pumped hydro and compressed air are investigated as mechanical energy storage. Parameters that affect the coupling of mechanical storage systems with solar and wind energies are studied.

Do storage technologies add value to solar and wind energy?

Some storage technologies today are shown to add value to solar and wind energy, but cost reduction is needed to reach widespread profitability.

Is solar storage more valuable than wind?

Storage is more valuable for wind than solar in two out of the three locations studied (Texas and Massachusetts), but across all locations the benefit from storage is roughly similar across the two energy resources, in terms of the percentage increase in value due to the incorporation of optimally sized storage.

Can wind and solar be used to provide electricity?

Clean energy sources like wind and solar have a huge potential to lessen reliance on fossil fuels. Due to the stochastic nature of various energy sources, dependable hybrid systems have recently been developed. This paper's major goal is to use the existing wind and solar resources to provide electricity.

Is energy storage based on hybrid wind and photovoltaic technologies sustainable?

To resolve these shortcomings, this paper proposed a novel Energy Storage System Based on Hybrid Wind and Photovoltaic Technologies techniques developed for sustainable hybrid wind and photovoltaic storage systems. The major contributions of the proposed approach are given as follows.

Does storage increase the value of a solar or wind plant?

Storage can increase the revenue generated by a solar or wind plant, but it also increases the capital costs of the plant. Here we optimize both the discharging behaviour, as done above, and the storage system size, to maximize the value of the electricity generation.