Renewables can’t carry grid during hurricanes, JPS warns

Jamaica’s ambitious transition to renewable energy is confronting a harsh climatic reality, as extreme weather events reveal critical vulnerabilities in solar and wind infrastructure. The Jamaica Public Service Company (JPS), the nation’s sole grid operator, has issued a stark warning that renewable systems coupled with battery storage cannot maintain grid stability during hurricanes, forcing renewed dependence on traditional thermal generation during crises.

The limitations became dramatically apparent during Hurricane Melissa’s Category 5 assault, when renewable sources failed completely—solar panels produced no power days before, during, and after the storm, while wind turbines were secured for safety. Acting JPS President and CEO Hugh Grant revealed that only 23% of customers maintained electricity post-hurricane, exclusively through fossil fuel resources. “When storms hit, the power system depends heavily on traditional, dispatchable generation,” Grant stated during a utilities regulation forum in Kingston.

This reality creates significant tension within Jamaica’s energy policy, which targets 50% renewable penetration by 2030. While supporting renewables as part of Jamaica’s long-term strategy, Grant emphasized that battery technology remains insufficient for prolonged outages, with utility-scale storage currently limited to approximately eight hours duration—inadequate for multi-day hurricane recovery periods.

In response to these challenges, JPS has implemented substantial grid-hardening measures including enhanced vegetation management, reinforced utility poles, reduced span distances for improved load-bearing capacity, and strategic circuit re-routing. The company is exploring underground infrastructure despite prohibitive costs—15 times higher than overhead systems—requiring targeted implementation and cross-sector cost sharing.

The hurricane exposed not only physical infrastructure limitations but also critical financing gaps. Government intervention through a $150 million loan covered less than half the $350 million estimated reconstruction costs, highlighting inadequate disaster funding mechanisms. Energy Minister Daryl Vaz clarified the government’s role is not to bail out utilities but to establish financial frameworks enabling rapid restoration while protecting consumers and the economy.

Jamaica Stock Exchange CEO Livingstone Morrison suggested utilities might need more aggressive capital market engagement to fund resilience projects. Meanwhile, policymakers face the complex challenge of balancing renewable expansion with maintaining reliable power through increasingly severe weather events, ensuring energy transition doesn’t compromise grid stability during critical periods.