New Zealand power and gas utility Genesis Energy Ltd (<a href="https://www.nzx.com/instruments/GNE" target="_blank">NZE:GNE</a>) and telecommunications company Spark New Zealand Ltd (<a href="https://www.nzx.com/companies/SPK" target="_blank">NZE:SPK</a>) have signed a power purchase agreement (PPA) for the electricity generated by the 63-MW Lauriston solar farm set for construction not far from Christchurch.