Part 1: LCA of electricity from two technologies GOAL: To estimate the life cycle environmental impacts of electricity produced from natural gas and solar photovoltaics (PVs) given the data provided. SCOPE: The analysis includes the fuel production and electricity generation (for natural gas electricity), and the technology production and electricity generation for solar photovoltaic. The functional unit is 1 MJ of electricity (at the power plant), and the impacts of interest are: water use, global warming potential, and smog formation potential. Use the following Global Warming Potentials: GWPmo of C02 = 1, GWPloo of CH; = 30 (all methane is fossil), and GWleof N20 = 265. METHODS: Use the figures and data below to calculate the impacts of generating 1 M] of electricity from each of these technologies. In this part of the problem you will IGNORE transmission and distribution. Natural Gas Electricity Production System1 The natural gas production system is broken into two main stages; natural gas production and electricity generation. The power plant has a 50% conversion efciency of fuel to electricity. The figure and data below include all of the data required for your calculation. Note that the "input" of natural gas reported in the Table for Generation of 1 MJ of Electricity reflects the 50% efficiency (i.e. for 1 MJ of electricity, 2 MJ of natural gas are needed).