Solar thermal electricity in 1998 : An IEA/solarPACES summary of status and future prospects C.E. Tyner, G.J. Kolb, W. Meinecke et F. Trieb J. Phys. IV France, 09 PR3 (1999) Pr3-17-Pr3-22 DOI: 10.1051/jp4:1999303