This webinar will discuss the latest advancements produced in the context of INESC TEC and INESC P&D Brasil research, on how system state estimation may evolve to take advantage of modern technologies, and tackle problems until now considered not possible to be solved. New algorithms outperforming existing solutions will be described, leading to building an extremely robust state estimation system, able to deal with gross errors, missing information and malicious information injected. Also, new concepts will be discussed, allowing taking full advantage of having PMUs supplying data at milisecond rate and therefore able to deal with transient phenomena; at the same time, obtaining net benefits for information collected at different levels and distinct frequency, from classical measurements in the order of minutes to smart meter information in the order of tens of minutes.