Yeast cell that is genetically modified comprising: a) one or more nucleotide sequence encoding a NAD+-dependent acetylating acetaldehyde dehydrogenase (E.C. 1.2.1.10); b) one or more nucleotide sequence encoding a acetyl-CoA synthetase (E.C. 6.2.1.1); c) one or more nucleotide sequence encoding a glycerol dehydrogenase (E.C. 1.1.1.6); and d) one or more nucleotide sequence encoding a dihydroxyacetone kinase (E.C. 2.7.1.28 or E.C. 2.7.1.29), wherein a) is one or more heterologous nucleotide sequence encoding a NAD+-dependent acetylating acetaldehyde dehydrogenase represented by SEQ ID NO: 2 or a functional homologue of SEQ ID NO: 2 having sequence identity of at least 60% with SEQ ID NO: 2; b) is one or more nucleotide sequence encoding a homologous or heterologous acetyl-CoA synthetase (E.C. 6.2.1.1) represented by SEQ ID NO: 6 or a functional homologue of SEQ ID NO: 6 having sequence identity of at least 60% with SEQ ID NO: 6; c) is one or more nucleotide sequence encoding a glycerol dehydrogenase (E.C. 1.1.1.6) represented by SEQ ID NO: 7 or a functional homologue of SEQ ID NO: 7 having sequence identity of at least 60% with SEQ ID NO: 7; and d) is one or more nucleotide sequence encoding a homologous or heterologous dihydroxyacetone kinase (E.C. 2.7.1.28 or E.C. 2.7.1.29) represented by SEQ ID NO: 13 or a functional homologue of SEQ ID NO: 13 having sequence identity of at least 40% with SEQ ID NO: 13. a) one or more nucleotide sequence encoding a NAD+-dependent acetylating acetaldehyde dehydrogenase (E.C. 1.2.1.10); b) one or more nucleotide sequence encoding a acetyl-CoA synthetase (E.C. 6.2.1.1); c) one or more nucleotide sequence encoding a glycerol dehydrogenase (E.C. 1.1.1.6); and d) one or more nucleotide sequence encoding a dihydroxyacetone kinase (E.C. 2.7.1.28 or E.C. 2.7.1.29), wherein a) is one or more heterologous nucleotide sequence encoding a NAD+-dependent acetylating acetaldehyde dehydrogenase represented by SEQ ID NO: 2 or a functional homologue of SEQ ID NO: 2 having sequence identity of at least 60% with SEQ ID NO: 2; b) is one or more nucleotide sequence encoding a homologous or heterologous acetyl-CoA synthetase (E.C. 6.2.1.1) represented by SEQ ID NO: 6 or a functional homologue of SEQ ID NO: 6 having sequence identity of at least 60% with SEQ ID NO: 6; c) is one or more nucleotide sequence encoding a glycerol dehydrogenase (E.C. 1.1.1.6) represented by SEQ ID NO: 7 or a functional homologue of SEQ ID NO: 7 having sequence identity of at least 60% with SEQ ID NO: 7; and d) is one or more nucleotide sequence encoding a homologous or heterologous dihydroxyacetone kinase (E.C. 2.7.1.28 or E.C. 2.7.1.29) represented by SEQ ID NO: 13 or a functional homologue of SEQ ID NO: 13 having sequence identity of at least 40% with SEQ ID NO: 13. a) is one or more heterologous nucleotide sequence encoding a NAD+-dependent acetylating acetaldehyde dehydrogenase represented by SEQ ID NO: 2 or a functional homologue of SEQ ID NO: 2 having sequence identity of at least 60% with SEQ ID NO: 2; b) is one or more nucleotide sequence encoding a homologous or heterologous acetyl-CoA synthetase (E.C. 6.2.1.1) represented by SEQ ID NO: 6 or a functional homologue of SEQ ID NO: 6 having sequence identity of at least 60% with SEQ ID NO: 6; c) is one or more nucleotide sequence encoding a glycerol dehydrogenase (E.C. 1.1.1.6) represented by SEQ ID NO: 7 or a functional homologue of SEQ ID NO: 7 having sequence identity of at least 60% with SEQ ID NO: 7; and d) is one or more nucleotide sequence encoding a homologous or heterologous dihydroxyacetone kinase (E.C. 2.7.1.28 or E.C. 2.7.1.29) represented by SEQ ID NO: 13 or a functional homologue of SEQ ID NO: 13 having sequence identity of at least 40% with SEQ ID NO: 13.