Learn how to calculate ripple voltage and its usefulness

Ripple voltage represents minimal variations in DC voltage signals, crucial for sensitive electrical systems that cannot tolerate fluctuations. In a 12V system, variations from 11.99-12.01V (20 millivolts) can cause damage. Measured as a percentage, it detects variations in the millivolt range. The oscilloscope is the most commonly used equipment for measurement, identifying voltage peaks and effective values to pinpoint variations in electrical circuits.

Rainy Season and Power Supply Failures

After the 2015 water crisis, 2016 saw an increase in rainfall. Despite improvements in reservoir levels, some regions, like the Northeast, have accumulated volumes below expectations, and the supply crisis is not averted.

Temporary Power Solutions in Malls Generate Savings

A mall in the southern region significantly reduced energy costs by using temporary power during its transition to the free market. With a monthly bill of R$ 880,000 (R$ 200,000 just during peak hours), the facility installed three generators plus one stand-by generating 2.5 MW. The result was a reduction in peak hour costs from R$ 200,000 to R$ 84,500, plus R$ 88,000 in diesel, totaling a 14% savings in total energy costs.

The Impact of Energy Costs on the Industrial Sector

The high energy costs in Brazil severely hinder industrial competitiveness, despite a predominantly hydroelectric energy matrix. A study by Firjan showed that tariff flags raised the MWh from R$ 360.85 to R$ 402.26, moving Brazil from 8th to 6th place in the global ranking of industrial tariffs. India leads with R$ 596.96 per MWh. Experts recommend tax relief and diversification of the energy matrix.

The Importance of Backup Power Generation for Your Business

A backup generator is crucial for companies to maintain operations during power outages, preventing production losses and raw material waste. Proper investment requires adequate planning, installation, and maintenance. It’s essential to choose a credible supplier, calculate the necessary load, determine the location, and obtain licenses (Fire Department, environmental, utility company, ART). Monitoring and preventive maintenance ensure operation when…

Large events require temporary power

Major events like the Olympics, World Cup, and Formula 1 grow annually, demanding robust energy infrastructure. The concentration of people creates a high demand for power, often exceeding the capacity of utility providers, making temporary power essential from the planning stage. Suppliers must present compatible projects, have a specialized technical team, and proven experience to ensure safety and reliability, with no room for failures that could compromise broadcasts or sports records.

What do you need to know about tariff flags?

In June 2015, Aneel implemented the tariff flag system with colors indicating power generation conditions. Green means favorable conditions with no extra charge, yellow adds R$ 0.015 per kWh, red level 1 charges R$ 0.030, and level 2 adds R$ 0.045. The system aims to pass on production costs based on reservoir levels and the use of thermal power plants. During 2015, the red flag predominated due to the water crisis, but in 2016, there was variation among the colors depending on rainfall and power generation conditions.

Temporary Power in the Mining Sector

The mining sector continues to hold a prominent position among the most important industries in the nation. In 2015, according to industry data, the export volume of iron ore alone exceeded 340 million tons. Temporary power is a strategic component for enabling the operation of an extraction mine, providing energy for heavy machinery, ventilation systems, security alarms, and lighting in often remote and hard-to-reach areas.

The role of temporary power in meeting Amazonas’ demands

Amazonas faces significant energy challenges, with 57 out of 62 municipalities relying on isolated power generation systems. In March 2016, 159 power generators were delivered to 91 locations, adding 124.8 MW to the existing 380 MW, with an investment of R$ 160 million. The government plans to invest R$ 6 billion by 2018 in improvements including new thermal power plants, integration into the SIN, and network expansion, creating opportunities for the temporary power sector.

After the rainy season, reservoir levels remain a concern

Following the wet season (January-March), hydroelectric reservoirs are still at low levels according to ONS. The Southeast/Central-West reached 50%, the South exceeded 90%, and the Northeast is at only 30%. ANEEL has changed the tariff flag to green due to the rains. Despite the 12.8 GW surplus reducing the risk of blackouts, companies are seeking power generators to cut peak-hour costs (5 PM-10 PM) by up to 30%.