"projected demand" is correct and usable in written English.
Example: According to our market analysis, the projected demand for organic food is expected to increase by 10% in the next year.
Population estimates in British Columbia for 2008 2010 and projections to 2020 and 2030 were used to model the projected demand for pediatric LRTI hospitalizations up to 2020 and 2030.
Vaccination against it has steadily risen to a projected demand of 100m shots this year.
"When set against projected demand for credit by the public and private sectors," the I.M.F.
New York's power plants can deliver up to 36,000 megawatts, more than 4,000 above this year's projected demand.
We also need more land, as much as "two more North Americas" to produce the fodder needed to meet projected demand.
At Canary Wharf in London, an inquiry is being held into how to cope with the projected demand for 1.1m new homes in the south-east by 2016.
One of the oil market's longest known uncertainties, that of a match between projected demand and supply for oil, is today more uncertain than ever.
A shutdown would deprive New Yorkers of a valuable source of electricity even as energy companies are scrambling to build more power plants to meet projected demand.
To meet projected demand over the next to decades, America must have in place between 1,300 and 1,900 new electric plants.
Jeff Ready, chief executive of Scale Computing, would like nothing more than to double his sales staff to meet projected demand for the information technology infrastructure that his Indianapolis-based company develops and manufactures.
Reports circulated this week saying that Audi planned to jettison certain vehicles in its E-tron electric-vehicle program because of high development costs and low projected demand, particularly in Europe.
