Recent changes in the world s electrical mix are generally motivated by the search for cleaner energy sources and by the difficulty in building new centralized power plants. As a result, this stimulus changes not only the energy source technology, but also its location, which is now closer to consumer centers or even connected to the distribution network, such as Distributed Generation (DG). In Brazil, DG has a regulatory framework that allows its supporters, called prosumers, to play an active role in the distribution network, injecting and consuming electricity according to their own electrical balance. This behavior brings new challenges for distribution companies, and although some benefits of DG can be obtained for these companies, the loss of market and reduction of their fixed revenues can result in the transfer of structural costs, from prosumers to consumers without this type of installation. In this context, this work performs a technical-economic analysis for new residential projects of photovoltaic DG, the most significant portion of DG in Brazil. This analysis considers all proposed options for reviewing DG regulation by the regulatory body and addresses both the impact on return on investment by prosumers and the impact on revenues in all distribution companies in the country. For this, within the investor, three different economic factors are evaluated: LCOE, discounted payback and benefit-cost; within the scope of the distribution companies, the impact of the increase in DG on the company s revenue and on their electricity tariff are also evaluated, for which a market forecast will be made for the next ten years, considering the model based on Bass. The obtained results indicate that any of the options proposed by the regulatory agency will cause a reduction in the market adherent to the installation of the DG, which will consequently lead to a reduction in the revenue losses for distribution companies and less favorable scenarios for investment on the prosumer side.