Compared to 2010, costs in 2022 were 95% higher for electricity, 67% higher for gas, 24% higher for solid fuel, and 46% higher for liquid fuel.
O ganlyniad i brisiau tanwydd 2022, y cynnydd mewn biliau ynni canolrifol ar gyfer pob tanwydd oedd: 48% ar gyfer trydan, 109% ar gyfer nwy a 6% ar gyfer olew gwresogi.