A Life Cycle Assessment of future New Zealand electricity was undertaken by Louise Bullen (published in 2020), supported by a grant from the Building Research Levy. The final Master's thesis is available below.
An Excel spreadsheet is available with the LCA results for each year from 2020 to 2035, and to 2050 for some scenarios. The results are presented for five MBIE electricity scenarios, and three ICCC scenarios, and based on both attributional and consequential modelling approaches.
Bullen, L. (2020). Life Cycle Based Environmental Impacts of Future New Zealand Electricity Supply. Master's thesis. Massey University. Available here.
Excel spreadsheet of LCA results for future NZ scenarios. Available here.