US energy-as-a-service provider Sunnova Energy International Inc (<a href="https://www.nyse.com/quote/XNYS:NOVA" target="_blank">NYSE:NOVA</a>) on Wednesday posted a net loss of USD 79.7 million (EUR 73.9m) for the second quarter of 2024, narrowing from USD 100.8 million in the same period of 2023.