I have worked at Canal Company for Electricity Distribution from "12 years" ago in Addition to that i have a private work, here is the summary : FIRST (Canal Company for Electricity Distribution):I have worked in two Managements as following:-1- Elect Distribution Networks Planning & Design Management :I worked as electrical planning and design engineer for a period of 7 years , performing electrical planning and design studies for low (0.4 K.V) and medium voltages (11 K.V,22 K.V). 2- Energy Efficiency & Solar Energy Management: From 5 years ago I have worked at another management as energy efficiency and solar energy manager and I still work-in, performing the following jobs:-(A) Electrical energy audit for buildings, indicating potentials of energy saving as I am certified as a technical energy efficiency manager from TUV Rheinland AKademie GmbH Germany.(B) Design & installing & commissioning of On Grid Photovoltaic Solar Plants. And indicate it's compatibility to standards and codes as I am in charge of distribution codes and PV standards. (C) Operation and maintenance of On Grid Photovoltaic solar Plants. (D) Execute electrical energy saving company plan.SECOND: (Private Work) – I love this field, I consider it as a hobby rather that a work:From many years ago I bought a power quality analyzer, using it for doing the following:1- Electrical power quality measurements at (22 K.V, 11 K.V and 0.4 K.V) buses in order to indicate power quality disturbances and offer a report including findings and the proposed solutions.2- Power factor correction and harmonics filtering studies.3- Harmonics survey starting from measuring all harmonics voltages and currents orders and applying the relevant standard and ending by offering a report includes readings, findings (if any) and recommended solutions.4- Voltage optimization studies "unbalance - over & under - sag & swell – flickers".