The present study was carried out in the Parbhani city, Maharashtra State to assess the impact of Domestic Roof Water Harvesting System on Ground Water potential of the area. For the research study 20 owners who have installed DRWH system and 20 owners who have not installed DRWH system were randomly selected. Responses by the adopters and non-adopters were obtained by using a questionnaire. The result of the study showed that, the owners who have installed DRWH system by their own interest do not face scarcity of water after installation. They also reported that, before installation of DRWH system they have to face scarcity of water every year. It was observed during research work that, the cost of construction of DRWH system varied according to material used by the owners. The cost of DRWH system for the roof area of 100 m 2 with screen filter was estimated about Rs 6980/- and with pit method, it was about Rs 6270/-. The data obtained from the survey of the adopters and non- adopters od DRWH system it was found that, about 100% adopters were satisfied and advised non-adopters to adopt the DRWH system. Also, 100% non- adopters urged need of getting training and technical guidance regarding installation of DRWH system. They also told that, they are interested to install DRWH system in future. Regarding improvement in water quality, about 35% adopters reported that water quality improved after installation of DRWH system. Only 10% adopters were facing the difficulties like care and maintenance of DRWH system. Ninety per cent owners demanded that Government should give subsidy for installation of DRWH system. About 45% non-adopters of DRWH system reported that the cost of installation is more. From the selected non-adopters of DRWH system, 75 % reported that due to provision of municipal water supply they do not have adopted DRWH System

Shunt compensation for medium voltage distribution systems requires higher rating for voltage source converters (VSCs). Ratings of the semiconductor devices in a VSC are always limited; therefore, for higher rated converters it is desirable to distribute the stress among the number of devices using multilevel topology. Cascaded multilevel configuration of the inverter has the advantage of its simplicity and modularity over the configurations of the diode-clamped and flying capacitor multilevel inverters. Application of cascaded multilevel converters for shunt compensation of distribution systems has been described in Literature. This paper presents an investigation of five-Level Cascaded H – bridge (CHB) Inverter as Distribution Static Compensator (DSTATCOM) in Power System (PS) for compensation of reactive power and harmonics. The advantages of CHB inverter are low harmonic distortion, reduced number of switches and suppression of switching losses. A CHB Inverter is considered for shunt compensation of a 11 kV distribution system. Finally a level shift carrier PWM (LSCPWM) and phase shifted PWM (PSPWM) techniques are adopted to investigate the performance of CHB Inverter. The results are obtained through Matlab/Simulink software package. The proposed DSTATCOM is simulated for both linear and nonlinear loads.