More subpoenas are on the way as the House Energy and Commerce Committee prepares to mark the one-year anniversary of its investigation into the bankrupt solar energy company Solyndra on Friday.

The panel's chairman, Rep. Fred Upton (R-Mich.), and his lead investigator, Rep. Cliff Stearns (R-Fla.), announced this afternoon that a business meeting would be held Friday to authorize issuing subpoenas to five White House staffers.

The top Republican on the Senate Energy and Natural Resources Committee continued her quest today for a committee probe of the Energy Department's troubled loan guarantee program.

Sen. Lisa Murkowski (R-Alaska) repeated her request for an oversight hearing on the loan program. She is also requesting that Energy Secretary Steven Chu testify at the meeting.

President Obama didn't request any new loan authority for the Department of Energy's troubled clean energy loan guarantee program in the fiscal 2013 budget request he sent to Congress yesterday -- and the only new funding he is seeking for the effort is $38 million to cover ongoing administrative expenses. But Republicans on Capitol Hill said yesterday that they were skeptical of putting any additional dollars toward a program that has become synonymous with the failed Solyndra solar energy company.

The reform blueprint released today after an independent, White House-sought review of the Energy Department's loan program -- and given unique political weight by the Solyndra bankruptcy -- will get a public airing in the Senate that could end in legislative changes, according to the leader of its energy panel.

Senate Energy and Natural Resources Chairman Jeff Bingaman (D-N.M.) said today that while he is reluctant to start a fresh top-to-bottom inquiry into the loans' effectiveness, he would host DOE loan program reviewer Herb Allison for a hearing next month. Bingaman also would not rule out considering legislative changes to the program.