Entry · Price
Submarket
Which regions have their own short-term price?
Acronyms: SIN, National Interconnected System; CCEE, Electric Energy Trading Chamber; PLD, Settlement Price for Differences (spot price); ONS, National Electric System Operator.
In one sentence
Each of the four divisions of the SIN for which the CCEE calculates its own PLD: North, Northeast, South and Southeast (this platform uses the label Southeast/Center-West for the last one).
Real example
On Sep 30, 2026, the daily average PLD was R$ 135.25 in the Southeast/Center-West, R$ 127.86 in the South, R$ 124.93 in the Northeast, R$ 135.25 in the NorthNature of the data: Calculated.
No Check this number record of its own in this example: the number comes from the panel's published database, which carries the source and the reference date.
Calculated: Deterministic transformation made by Scrutiniums, with a published formula.
Why it matters
How it is measured
The PLD_HORARIO dataset gives one value per hour for each submarket. In the ONS datasets used here, the region field is the subsystem, identified by SE, S, NE and N.
Not to be confused with
SIN (National Interconnected System)
The SIN is the entire interconnected system; a submarket is each of its four divisions with its own PLD. A SIN value is a sum or a ratio of sums of the subsystems, according to the rule of each indicator.
Related entries
In the learning paths
Official source
In other words: every day the CCEE calculates the prices for each hour of the following day, in each submarket, with three computer models, starting from the marginal operating cost and respecting a minimum limit and two maximum limits.
Literal excerpt from the document
Portuguese only“O Preço de Liquidação das Diferenças (PLD) é calculado pela Câmara de Comercialização de Energia Elétrica (CCEE) diariamente para cada hora do dia seguinte, considerando a aplicação dos limites máximos (horário e estrutural) e mínimo vigentes para cada período de apuração e para cada submercado. Este cálculo é realizado por modelos computacionais (Newave, Decomp e Dessem) e tem como base o Custo Marginal de Operação (CMO).”
Literal excerpt from the document
Portuguese only“Representa os quatro (4) submercados de atuação no SIN - Sistema Interligado Nacional correspondentes a Norte (N), Nordeste (NE), Sul (S) e Sudeste (SE).”
Documents accessed and text checked on Sep 28, 2026.