Rioglass is engaged in design and manufacturing of key optical components for concentrated solar power (CSP). Rioglass provides operation and maintenance services for renewable power plants as well as other specialized services to assess and improve the performance of CSP and other renewables assets. Rioglass Solar Systems Ltd Formerly known as 'Solel - Siemens' was established with the acquisition of the receiver tube facilities in Israel. The facility produces HCE receivers and mirrors.