Comerc

Artigos

Henrique Kozaki
10.10.2015

Afluências no final do período seco

Entre os dias 8 e 11 de outubro, a Energia Natural Afluente (ENA) do Sul cresceu 73 pontos percentuais, saindo de 130% para 203% da MLT, conforme o gráfico abaixo: O submercado Sudeste manteve-se próximo aos 100% da MLT, com previsão de que a ENA mensal fosse de 93% da MLT. O Norte e o […]

Henrique Kozaki
09.09.2015

Nível dos reservatórios – Primeira semana de Setembro

Até 7 de setembro, o nível dos reservatórios do SIN apresentou um valor inferior ao observado no mês de agosto de 2015, com uma diferença de 3 pontos percentuais. Ao compararmos setembro de 2015 com o mesmo mês do ano passado, o aumento é de 5 pontos percentuais. Importante ressaltar que o valor de 2015 […]

Henrique Kozaki
08.08.2015

Wind power in the Northeast and reservoir levels

The high temperatures experienced in 2015 contributed to worsening storage in Northeast reservoirs due to the increased need for refrigeration. On a positive note, on August 17 and 18 the region produced more wind energy than hydro or thermal. Wind energy, because it is at the base, is a priority for dispatch. Once the wind […]

Henrique Kozaki
08.08.2015

The PLD (spot price) at R$ 119,00/MWh: what is the relationship between reservoir levels and the energy load during the dry season?

Flows went up in July in the Southeast and Southern systems, and in the first week of August, the PLD in the Southeast reached the lowest level of the year. Prices actually started to drop in June. If we look at the behavior of the PLD since 2012, we see valleys in some months of […]

Henrique Kozaki
08.08.2015

SIN reservoir levels – Some recovery in July, compared to the same month in 2014

The following chart shows ten years of month-by-month variation in the level of the reservoirs that make up the National Integrated System. Between January and July 2015, reservoir levels climbed 20 percentage points, a behavior similar to that found in 2013. However, levels are still below what they were in that year. Typically, the sum […]

Henrique Kozaki
07.07.2015

Comportamento das vazões e o consumo de energia em relação ao PLD

O modelo matemático para o cálculo do PLD busca um equilíbrio entre os despachos hídrico e térmico para chegar ao menor custo marginal da operação. Por esse motivo, as vazões nos rios são variáveis relevantes para observar o comportamento do preço. Desde 2014, as vazões nos rios (ENA) diminuíram por causa da redução das chuvas, […]

Henrique Kozaki
07.07.2015

Nível dos reservatórios do SIN: pequena recuperação em julho em relação a 2014

O gráfico abaixo simula o nível mensal dos reservatórios do SIN nos últimos dez anos. De janeiro a julho de 2015, o crescimento foi de 20 pontos percentuais, com um comportamento semelhante a 2013. Porém, não atingiu o mesmo patamar observado em 2013. O comportamento típico da somatória dos submercados é alcançar o pico de […]

Henrique Kozaki
06.06.2015

Power load follows the observed in 2014

In 2015, the energy charge of SIN, verified by the ONS, was below 2014 levels, except the month of March. The biggest difference occurred in February when the load peaked in 2014 with 68,484 MW. This was due to the high observed temperatures in the same period last year, especially in the Southeast and South […]

Henrique Kozaki
06.06.2015

Energy load drops 3% in the month of May

According to the ONS, the energy load in May dropped 3% compared to the same month in 2014 In May 2015, the energy load on the Brazilian National Integrated System added up to 60,961 MWavg, a 3% drop compared to the same month last year, or 4.5% compared to the previous month.  However, in spite […]

Henrique Kozaki
05.05.2015

Average annual energy load in the National Integrated System between 2015 and 2019

In its first quarterly review, the ONS reduced the expected load on the National Ingetrated System by 3% in 2015, and by 5% for the 2016 – 2019  period  In January 2015, the ONS published its load forecast for the 2015-2019 period (PEN 2015-2019), using the EPE premise of 3.4% annual GDP growth for Brazil. […]



Tags