Huge volume of refuse is generated in Japan, its volume per man-day is about 1 kg. Appropriate refuse disposal is one of key issues to keep our comfotrtable social life. Although there are different kinds of refuse disposal method, incineration is the best method for burnable refuse which is the most part of municipal one. Refuse can be mineralized, reduced the volume, and detoxified by high temperature incineration at an incinerator plant (IP). At the same time, power generation by waste (PGW) is done as thermal reuse. It decrease environmental load. However PGW has weakness. One is low generation efficiency, the other is that the number of IP with PGW is little. To overcome the issues of PGW, the optimal operation plan and facility plan at IPs are essential. This book is described the solution method of the issues above through numelical way using analized real operational data of Tokyo Metropolitan Area. The results are very effective. The book is very useful to make use of PGW.