As I write this review, the lights in my entire area have gone out. If you build one too many literally power hungry houses without a wind farm in place, you will find yourself unable to earn rent from the houses that your own and pretty much unable to build anything else. Shame on you for not being environmentally conscious about your real estate tycoon dreams. In Build-a-Lot 4: Power Source HD, the emphasis – as it should be, is on going green. Read the full review after the break!