ESS Tech Inc (<a href="https://www.nyse.com/quote/XNYS:GWH" target="_blank">NYSE:GWH</a>), a US manufacturer of long-duration energy storage systems (LDES), aims to move toward unit profitability in 2024, the company said on Wednesday as it reported a net loss of USD 77.6 million (EUR 70.9m) for 2023, similar to the result in 2022.