Locations near major cities are ideal for greenhouse construction, especially so if these cities' populations are willing to pay a bit extra for greenhouse products. Greenhouse cultivation tends to be more expensive than open-field cultivation. As stated by Lambert van Horen of Rabobank and Peter Ravensbergen of the WUR in Financieel Dagblad (a Dutch financial newspaper). As there's little space left in the Westland (the Netherlands), and as there's a world food problem to be solved, this newspaper discusses where additional greenhouses could be located.
The experts identify the north of the US (far enough away from major competitor Mexico), Asia, and Brazil as potential locations. However, there is a caveat. The essential local knowledge and business activity that make Westland such a strong horticultural cluster are often lacking internationally. "Even in the mountain ranges of Kazakhstan, your vegetables need to be cooled and should arrive at the supermarket on time," Ravensbergen emphasizes at the end of the article, which can be read in its entirety in the FD(€).