The phrase "add substantial" is correct and usable in written English.
It can be used when discussing the act of increasing or enhancing something significantly, often in terms of quantity, quality, or impact.
Example: "The new policy is expected to add substantial benefits to the overall productivity of the team."
Alternatives: "provide significant" or "contribute considerable".
Miriam Siefer, a lawyer for James Nichols, said the affadavit did not add substantial new information.
firm-level characteristics, typically ignored in the literature, add substantial explanatory power for manager compensation.
Abundant raw materials and a huge supply of educated workers give joint ventures a chance to add substantial value.
We show that firm-level characteristics, typically ignored in the literature, add substantial explanatory power for manager compensation.
It is observed that the additional dampers add substantial damping to structure and thus favorably control the response of platform structure.
Experimental results demonstrate that the proposed solution does not add substantial load or delays to the system when compared to an IEC 61131-3 basolutiontion.
On 1 March, the company will institute new "privacy policies" that will add substantial detail to the picture Google keeps of each user.
Protections for an office building could include measures such as additional mail screenings or enhanced surveillance technology — although Burton notes that this can add substantial cost.
This change could add substantial costs to a program that needs to reduce projected spending to remain sustainable in the long run.
"For many people though these sessions add substantial amounts of alcohol to their annual consumption and inevitably increase their risks of developing alcohol related ill health".
The Integral Resonant Control (IRC) utilizes this unique property to add substantial damping to the dominant resonant mode by the use of a simple integrator implemented in closed loop.
