The National Electrical Power Agency (ANEEL), by means of Normative Resolution nr. 482, dated April 17, 2012, has established the general conditions for micro-generation and mini-generation plants to access and supply the electrical energy distribution grids, and has also established the system for electrical energy remuneration.
The new regulations establish that the electrical energy originating from micro-generators (those with an installed potential of up to 100kW) and mini-generators (with an installed potential of between 100kW and 1 MW) can be inserted into the local distribution grid and be remunerated for the electrical energy effectively consumed by the generator itself. This system of bi-directional measurement is internationally known as net metering, and is one of the means utilized to encourage the use of renewable energy sources.
Within this system, the electrical energy produced at the generation plant may be inserted into the distributor's network and, as part of an exchange system, the amount of energy produced by the generating unit will be discounted from the total amount consumed, respecting the seasonal-hourly rates. Should the amount generated be greater than that effectively consumed by the generator, the distributor will make credit available corresponding to the excess amount and this will be compensated as part of the generator's subsequent bills. This credit should be used within 36 months.
This new system is valid for generators which use incentivized sources of electrical power generation (qualified hydraulic, solar, biomass, wind or co-generation) connected to the distribution grid by means of installations with the end users.
Another factor of note is the possibility of individuals with more than one property registered in their name, public organs or...