Time of use pricing becomes the low voltage default in 2028 above 1,800 kWh per month

In eight years, the optional white tariff drew less than 0.1% uptake, according to a carousel by Marcio Takata, of Greener, on ANEEL's Joint Technical Note No. 14/2026. The proposal reverses the default: time of use pricing as the rule in low voltage in April 2028 above 1,800 kWh/month, 2029 above 1,000 kWh and 2031 above 500 kWh.

The schedule has already changed once. An article by Paulo Steele in Canal Solar, of 03/30/2026, recorded the design of Public Consultation No. 46/2025: automatic migration above 1,000 kWh/month by the end of 2026, 600 kWh in 2027 and 2.5 million smart meters per year. The article puts uptake of the optional model at 0.09% of the eligible market in 2025.

The first cut moved to 2028, at a higher threshold. For batteries and charging, what counts is the difference between peak and off peak at each distributor; the carousel notes there is no specific tariff for storage.

The note still goes to the Board. For investment, what counts is the date the rule is published and the date the meters are installed. Once both are set, the battery case gets a time based price to rest on.