Cost/Benefits analysis of infrastructure projects L’activité Le contexte J-Luc Bessède Some KPI’s Renewables Dynamic quality in transmission Steady-state quality Harmonic quality CO2 Reduction Efficiency Dynamic quality in distribution Direct effect (lower losses) Indirect effect (parameters, bottlenecks) Indirect effect (more efficiency) T&D Manufacturers • Ready to provide State of art technologies • For Innovative electricity transmission grids • With a prospective view Eg. : KPI’s for Replacement / refurbishment of Power Components 2 UHV DC Energy efficiency Type of Power production Type of line Power to be produced (MW) Total electric energy to be produced in one year (TWh) Total CO2- equivalent emitted (t/year) CO2 –eq. emitted (kg/ received kWh) Avoided CO2- eq. by ±800 kV DC, compared with 500 kV AC Avoided CO2- eq. by ±800 kV DC, compared with 1100 kV AC Generation - mix (0.5 t CO2- eq./MWh) 500 kV AC 3049 26.7 1.34×107 0.61 1100 kV AC 2848 24.9 1.25×107 0.57 ±800 kV DC 2622 23.0 1.15×107 0.524 1.87 Mt/year 0.986 Mt/year 2500 MW, final distribution -1000 km - Line availability: 97% by time UHV transmission line improves energy efficiency, & decreases CO2-equivalent emissions compared with 500 kV AC line. ±800 kV DC shows even better energy efficiency 4. Conclusions » The UHV transmission line improves energy efficiency, and decreases CO2-equivalent emissions compared with 500 kV AC line. » ±800 kV DC shows even better energy efficiency » Comparing the different power generation, hydro and nuclear offer the lowest CO2-equivalent emissions.