The plan, approved in a party-line vote, would curtain the Energy Department’s embattled loan-guarantee program.

A House Energy and Commerce Committee panel, in a largely party-line vote, approved a GOP plan Wednesday that would curtail the Energy Department’s embattled loan-guarantee program.

The vote marks the latest political jab at White House programs to boost commercialization of alternative energy technologies — attacks that have intensified since last year’s collapse of the taxpayer-backed solar panel company Solyndra.

The bill would prevent the Energy Department from issuing loan guarantees on applications received after the end of 2011, and also sets new restrictions on existing applications and loans.