accessible(easy of access or approach) adjective [UK: ək.ˈse.səb.l̩] [US: æk.ˈse.səb.l̩]
affordable(able to be afforded) adjective [UK: ə.ˈfɔː.dəb.l̩] [US: ə.ˈfɔːr.dəb.l̩]Solar energy is abundant, clean, affordable and renewable. = La energía solar es abundante, limpia, asequible y renovable.
attainable(able to be accomplished, achieved, or obtained) adjective [UK: ə.ˈteɪ.nəb.l̩] [US: ə.ˈteɪ.nəb.l̩]
feasible(that can be done in practice) adjective [UK: ˈfiː.zəb.l̩] [US: ˈfiː.zəb.l̩]
practicable(capable of being accomplished; feasible) adjective [UK: ˈpræk.tɪk.əb.l̩] [US: ˈpræk.tək.əb.l̩]