Within the United States, retail electricity prices vary dramatically by geographic region, with states like Hawaii, California, parts of the Northeast (such as Massachusetts, New York, and Connecticut), and Alaska consistently reporting the highest average rates. Hawaii's high prices stem from its geographic isolation and heavy reliance on imported oil for power generation. In contrast, states in the Northeast face constrained transmission grid capacity, high regulatory costs, and infrastructure upgrade expenses, whereas California grapples with high operational standards and extensive grid hardening investments against wildfires.