"total needs" is correct and usable in written English.
You can use it to indicate that all of something is required or necessary. For example: "To complete the project, we need to assess the total needs of the team."
In World War II the average ammunition requirements of Western forces in combat zones were 12 percent of total needs.
They argue it should offer higher payments than those proposed and aim to deliver far more clean electricity — up to one-third of the country's total needs.
Geothermal resources in the Rift Valley have been tapped since the early 1980s to generate electricity and have come to supply a significant amount of Nairobi's total needs.
But some estimates put the state's total needs at $10 billion, said Frank Belluscio, a spokesman for the New Jersey School Boards Association.
to fit the total needs of the State's dependent children, as measured by the State's standards of their subsistence requirements, into an inadequate State appropriation.
There are powerful counterarguments: Iran is China's third-biggest source of oil imports, supplying more than 5 percent of total needs.
Local farmers are currently able to supply about 90 percent of our total needs – for vegetarian products, hash browns and most of our French fries.
By comparison, France, with the second highest total, needs to auction $243 billion of new debt, according to estimates by Nomura.
Of European Union members, Austria was the most reliant on Syrian oil, importing about 8 percent of its total needs from that country, according to European Union officials in Brussels.
