Chile’s Largest Solar Project Secures Approval for 421.9 MW Plant

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Chile’s largest solar project under Chile’s largest renewable energy company Colbún secures approval for a 421.9 MW solar photovoltaic project. Colbún has secured a significant authorization that strengthens the firm’s solar growth strategy. Furthermore, cements Chile as an ideal ground for large-scale solar initiatives.
Last month’s SEA approval means that the project is ushered in by Colbún. A 421.9 MW Celda Solar photovoltaic development planned for nearly 1,000 hectare site in Chile’s solar-rich northern region. It is to start soon enough this year. As a country with the greatest solar potential in South America, Chile has emerged as an investment center.

Thus for increasing its production of energy exports from renewable sources to 45% by 2030. On the trenches enabling this solar boom is in Chile, a country’s second-largest power generator known as Colbún. The approval of the company’s gigantic solar project uses Chilean perfect conditions for such an installation and focusses on its advantage as a country. This is in regard to renewable IPP projects because of their favorable laws, power transmission infrastructure, etc.

The landmark Celda Solar authorization becomes the basis for fulfilling the targets of renewables set by Colbún. It requires to be at one with its intelligent approach to sustainable growth and complying with Chile’s decarbonizing time table. According to industry analysts; it is a game-changing catalyst for the deployment of renewables in Chile’s northern grid.

Exciting Prospects and Opportunities Focused on Chile’s Largest Solar Project

Considering Chile as a top global innovator in the development of renewable sources, solar power segment has experienced remarkable growth. Northern parts of the country, especially Arica and Parinacota in particular have turned into focal points for utility-scale solar plants.  This is due to ideal conditions regarding solar power. 

The concentration in the area is capable of producing up to 9 kWh per m2 due to minimal cloud cover and enormous flat non-arable land. These natural advantages complemented by the transmission capacity of Arica node have unleashed a wave of megawatt-scale solar projects from producers such as Colbún who want to capitalize on abundance solar resource.

The approval of Colbún’s 421.9 MW solar plant brings a massive scale to the potential for renewable growth in Chile’s northern grid. It also signals an unmistakably exciting future ahead. Through use of the specially designed high efficient solar technology in line with region, Celda Solar project will access the vast potential capacity for clean energy supply through harnessing solar power from Arica and Parinacota area. 

It will demonstrate that world class utility solar developments can overcome intermittency in climate like Chile with great storage equipment.

Flexible Solar Power Dispatch and Grid Stabilization in Chile’s Largest Solar Project

The plans of Chile’s largest solar project that expands over 950 hectares in Arica and Parinacota stand at nearly about 421.9 MW. Using state-of –the art solar and storage solutions. The plant will use high-efficiency bifacial photovoltaic solar panels with both sides power generation for a better energy output. More so, in conditions that have the biggest reflectance. 

Bifacial panels absorb diffuse and ground-reflected light, which allows to generate 25% more power. Thus, compared with traditional mono-facial models. The initiative also includes game-changing grid-scale storage capabilities. Including, revolutionary state of the art 240MW lithium ion battery system that can store over 1,200 MWh.

Flexible solar power dispatch and grid stabilization will add an immeasurable amount of value to the local grid. This is through the integrated battery energy storage solution. The plant can smooth the variability in solar resource using a battery bank that may either charge or discharge strategically. This will depend on the prevailing dynamic demand and weather conditions.

The project’s innovative solar-plus-storage design reinforces Colbún’s dedication to developing first of a kind solutions. These solutions will capitalize on the country‘s premium quality Solar resource while permitting stable and dependable renewal electricity production.

Connecting Renewable Energy Sources; Linking Celda Solar Plant to Chile’s Central Interconnected System

A critical element of Chile’s largest solar project is creating a 85-kilometer, 220 kV transmission line that connects the Celda Solar plant to Chile’s Central Interconnected System (SIC). This covers population centers in central and southern Chile. This will enable the plant to supply excess solar power from Arica region towards SIC that stands at 93% of national demand.

Moreover, the project includes building a 220/11 KV booster substation to step up voltage levels. This will reduce losses through out the extended transmission line. With its long-distance, highly efficient power delivery ability, this infrastructure sets free the virtually unlimited solar generation capacity of Chile’s North to meet growing domestic clean energy demand.

Powerful capacity integration is necessarily a substantial estimate of 1,100 Gwh per year representing the generation that more than bridges an annual domestic consumption by over 345 thousands. This can also be trailed as technical undue burden on provision from such association with relevant targets related to de-carbonization. The plant’s main storage capability will also provide critical grid stability and flexibility services that help meet variability-related concerns brewing up in Chile as more renewables connect to the network.

Chile's largest solar project

Colbún’s Commitment to Green Goals in Chile’s Solar Industry

Sharing the nation’s green goals Colbún integrates social and environmental responsibility into project design development. Over the 24-month period baseline studies were completed evaluating impacts to local communities, biodiversity, water resources and cultural heritage. Solar PV panels being elevated over native vegetation pioneered by Colbún to ensure habitat connectivity and minimal land use changes.

Colbún also ruled extensive consultations with all the related indigenous groups taking their suggestions on matters such as land use rights and water supply. The project has more than 150 ha only to preserve the habitats of endangered bird species. While pursuing sustainability as a core principle, Colbún adjusted the plant layout. Hence, to exclude all of those archaeological zones with significant cultural and environmental values that were supposed to evidence solar energy projects’ feasibility by not neglecting ecology.

Such wide impact mitigation actions strengthen Colbún’s resolve to drive sustainable growth in Chilean solar industry. The company plans to produce local socio-economic positive outcomes. In terms of job creation and fund for community development; conserving the fragile ecosystems of Chile’ northern corridors.

Economic Stimulus and Local Supply Chains through Solar Investment

Chile’s largest solar project project is valued at over $500 million. It is a massive investment to kick start the regional economy and local supply chains. Moreover, the development and operation of this plant will create several hundred jobs. From construction workers to engineers and maintainers offering new qualified career opportunities. Colbún also intends to team up with local contractors and service providers whenever possible. Thus, creating linkages between the growth of solar energy generation and increase in local business.

The success of Chile’s largest solar project will be a catalyst for further development – making Arica and Parinacota into renewable energy hub would attract more industries over time. Having the most reliable solar resources of any region worldwide, it has unprecedented potential in terms of clean energy production. Colbún’s commitment shows the potential that is available.


The green light for Colbún’s record-breaking Celda Solar plant is signaling an epochal turn in Chilean solar energy. Chile has become one of the first nations in Latin America to pursue carbon neutrality by 2050. Therefore, secured itself a frontrunner position within this transition from fossil fueled energy systems towards sustainable ones. The approval and imminent implementation of a country’s largest solar project marks the defining point in manifesting enormous potential. Moreover, among Chilean northern regions to drive this renewable revolution.

With its unmatched solar resources, strategic vision and companies such as Colbún pioneering the way forward, Chile appears set to revolutionize her energy industry. As the country is on the eve of a clean power boom, it can become a solar superpower and guardian for sustainability in South America. Celda Solar may come to be viewed as the project that hastened this change.

Colbún has effectively positioned the Arica region by providing both renewable infrastructure and community growth which prepares to prompt solar development at scale across Chile. With these essential pieces in place, the company would then open a new chapter of equitable and empowering clean energy development in the nation.