While the total installed price of solar has continued to decline, the price of the solar panels or modules themselves has remained relatively flat since 2012, indicating a decline in non-module costs. Credit: LBNL.
defense. 1  the denial or pleading of the defendant in answer to the claim or charge that has been made. 2  the proceedings adopted by a defendant, or the defendant's legal agents, for defending against the charges that have been made. 3  a defendant and his or her counsel.
1 Collective defence means that an attack against one Ally is considered as an attack against all Allies. 2  The principle of collective defence is enshrined in Article 5 of the Washington Treaty.  NATO invoked Article 5 for the first time in its history after the 9/11 terrorist attacks against the United States.