That resulted in immediate savings, but will add $2.5 billion to the overall cost, the Pentagon figures showed.

But there are several benefits beyond the immediate savings.

This service includes a full report with recommendations for immediate financial savings.

The pilots have already delivered immediate savings of £12million in their first few months.

The Government has committed to make immediate savings of £6.2 billion.

Cool roofs offer both immediate and long-term savings in building energy costs.

"In order to accomplish this immediate savings, you blow up your budget for the next decade," he said.

The Government has committed to make immediate savings of £6.2billion.

"We need to have some immediate savings, with enough flexibility for the states so they can absorb the changes."

Some city officials have suggested an immediate savings of $100 million or more per year.