42 COMPUTER PROGRAMMING SERVICES FOR OTHERS; POWER QUALITY ANALYSIS, DESIGN, AND ENGINEERING THROUGH THE SELECTION, OPERATION, AND INSTALLATION OF DEVICES OR EQUIPMENT TO REDUCE OR ELIMINATE ELECTRIC POWER INTERRUPTIONS, FLUCTUATIONS, TRANSIENTS, AND HARMONICS IN THE ELECTRICAL OR MECHANICAL SYSTEMS OF OTHERS; ENGINEERING AND DESIGN OF TRANSMISSION FACILITIES, ENERGY EQUIPMENT, ENERGY SYSTEMS FOR OTHERS; OIL AND NATURAL GAS EXPLORATION; MONITORING OF HOME SECURITY SYSTEMS; CONSULTATION SERVICES IN THE FIELD OF DEVELOPMENT, CONTROL, USE AND CONSERVATION OF ELECTRICAL ENERGY AND NATURAL GAS; ELECTRIC AND GAS METER READING SERVICES