The ongoing shortage of water in the country has spurred innovation in water conservation techniques, and a substantial agricultural modernization, drip irrigation, was invented in Israel. Israel is also at the technological forefront of desalination and water recycling. The Sorek desalination plant is the largest seawater reverse osmosis (SWRO) desalination facility in the world. By 2014, Israel's desalination programs provided roughly 35% of Israel's drinking water and it is expected to supply 40% by 2015 and 70% by 2050. , more than 50 percent of the water for Israeli households, agriculture and industry is artificially produced. The country hosts an annual Water Technology and Environmental Control Exhibition & Conference (WATEC) that attracts thousands of people from across the world. In 2011, Israel's water technology industry was worth around $2 billion a year with annual exports of products and services in the tens of millions of dollars. As a result of innovations in reverse osmosis technology, Israel is set to become a net exporter of water in the coming years.