US property investor Starwood Capital’s announcement this Thursday that it is investing $850 million (€788 million) in a deal valuing Dublin-based Echelon data centres at €2.5 billion reveals both the formidable size of investments made by the industry in Ireland and the amount of debt applied to make them happen. This follows Sky News’s report last week that the US private equity giant Blackstone was contemplating buying some or all of Winthrop Technologies, the Irish contractor specialising in the construction of data centres which is valued at over €800 million. Starwood is “becoming a 50 per cent shareholder in Echelon…