TEGs are rarely over 15% efficient, and usually require 300+°C to operate. At 150C you're probably looking at traditional steam turbine for peak recovery, at t

TEGs are rarely over 15% efficient, and usually require 300+°C to operate. At 150C you're probably looking at traditional steam turbine for peak recovery, at this pressure you're looking at about 35% efficiency placing a potential absorber/generator combination a-la-stirling near 29% overall, which is great but for the price and complexity probably not ideal compared to solar at 20%.