WASHINGTON -- The White House will announce plans Wednesday to provide another $5 billion in tax credits for manufacturers of wind, solar, electric vehicle and other renewable energy products, hoping to leverage at least $15 billion in private investment and create "tens of thousands" of jobs.

The expansion would increase three-fold the $2.3 billion available in the Section 48C Advanced Energy Manufacturing Tax Credit program, part of the $787 billion stimulus package enacted in February. That program has been over-subscribed....