Last week, Codevasf (Companhia de Desenvolvimento dos Vales do São Francisco and Parnaíba) delivered two photovoltaic systems to the 2nd Regional Superintendency, in Bom Jesus da Lapa (BA).
With an investment of R$450, 340 380 W monocrystalline photovoltaic modules from Risen Energy were installed and used on the company building and the internal parking lot. Two 380 kW 50 V three-phase inverters from Sofar with 3 MPPTs (Maximum Power Point Tracking) were also installed, in addition to six string boxes.
“They are two completely independent plants, with an inverter and an autotransformer in each one. Such plants are connected to the existing electrical installation in an AC interconnection panel through two 150 A circuit breakers”, explained electrical engineer Anderson Machado, Regional Development analyst at Codevasf.
The company expects the two systems to cover the electricity costs of the Regional Superintendence and its technical support offices. In addition, the company announced that the delivery schedule also includes paving works on 1,7 m² of streets in the municipality, with a contribution of R$114 from a parliamentary amendment.
Solar-powered wells
In 2020, Codevasf began installing tubular wells powered by solar energy in the Médio São Francisco region of Bahia. The action represented an innovation in the drilling and installation work carried out for the benefit of rural communities.
The first wells of this type were installed in communities in the municipalities of São Félix do Coribe, Correntina and Serra do Ramalho – the area of operation of the 2nd Regional Superintendence. Of a total of 78 wells that are part of two contracts signed by the company, 35 will be powered by photovoltaic systems.
The plant located in the Angical community, in São Félix do Coribe, for example, was the first installed with solar. It has five plates that provide the energy necessary to pump water from inside the well to a ten thousand liter reservoir.
For Diogo Lessa, a producer in the region, the system cuts costs and simplifies the administration of access to water, especially since there is no electricity. “Each person has their own plot and is creating their own little plantation, their own vegetable garden, which is why this water is so important for us. There is a free market here, and this well will make it possible to plant food that will be sold at the free markets. This water changes everything for us.”
