Savills Thailand says overseas data centre investors now rank reliable electricity and water above land cost. Many want up to 500MW, and grid approvals for around 150MW are limited in each area. Ayutthaya has flood-retention zones, and industrial estates have an edge because they already have fibre. For most small firms this is background. It matters mainly if you own land near the EEC, Samut Prakan, Ayutthaya or Saraburi, where a data centre buyer or lessor could come along. Expect site selection to take over a year.