Solar panel farm in dry Brazilian landscape

Solar photovoltaic farm in the Brazilian hinterland, with panels harvesting twilight light in a semi-arid region.

About this subject

The Brazilian hinterland, a semi-arid region covering much of the Northeast, has become a strategic hub for solar power generation. With annual solar incidence exceeding 3,000 hours of sunlight in areas like the interior of Bahia and Piauí, the region is ideal for photovoltaic farms. These installations use land previously dedicated to pasture or subsistence farming, transforming the landscape with rows of panels stretching over hectares.

The energy produced in these solar farms is transmitted via high-voltage lines to distant urban centers, often along the coast or in the Southeast. Brazil has one of the world's largest solar potentials, with installed capacity surpassing 30 GW in 2023, and the Northeast accounts for more than half of this generation. The São Gonçalo plant in Piauí, for instance, is one of the largest in Latin America, with a capacity of 1.5 GW.

Beyond energy benefits, solar farms create local jobs during construction and operation, and provide income for landowners through leases. However, challenges such as generation intermittency (due to the day-night cycle and weather variations) and the need for energy storage investments remain. The image captures twilight, when production declines, but the scenery gains golden hues contrasting with the blue panels.

Frequently Asked Questions

Why is the Brazilian hinterland ideal for solar energy?

The region has high solar radiation year-round, with over 3,000 hours of sunlight annually, plus flat terrain and low land costs, favoring the installation of large photovoltaic plants.

What is Brazil's solar power generation capacity?

In 2023, Brazil surpassed 30 GW of installed solar capacity, with the Northeast accounting for more than half. The São Gonçalo plant in Piauí is one of the largest in Latin America, at 1.5 GW.

What are the main challenges of solar energy in the hinterland?

Key challenges include generation intermittency (dependence on the solar cycle), the need for battery storage, and transmission costs to distant consumer centers.