Solar could sup­ply more than 40% of the nation’s elec­tric­i­ty by 2035 — up from 3% today — if Con­gress adopts poli­cies like tax cred­its for renew­able ener­gy projects and com­po­nent fac­to­ries, accord­ing to a memo pub­lished by the Depart­ment of Energy.

The memo is part of a push by the White House to pump up solar as a jobs engine and piv­otal pil­lar in the cli­mate change agen­da of Pres­i­dent Joe Biden.

The sec­tor is also tak­ing cen­ter stage as offi­cials plug the admin­is­tra­tion’s leg­isla­tive pri­or­i­ties on the road, with Labor Sec­re­tary Mar­ty Walsh tour­ing a new First Solar Inc facil­i­ty in Ohio that is expect­ed to cre­ate about 500 jobs.

To pro­pel solar to near­ly half of U.S. gen­er­a­tion, the indus­try needs to grow at three or four times its cur­rent rate, cre­at­ing up to 1.5 mil­lion jobs, accord­ing to an unpub­lished analy­sis by the Nation­al Renew­able Ener­gy Lab­o­ra­to­ry cit­ed in the memo.