1. DOE cannot say if it is an
"incremental improvement" or not based on your question. It is the
responsibility of the applicant to prove that their improvement is not
"incremental" and worth of consideration.
2. It refers to any product
available for purchase that can be used in the US to drive down the installed
cost of solar energy.
3. It is up to the applicant to
present how their proposed product improves on any product in the past in more
than an incremental fashion and that the proposed product is relevant to the
solar industry today.
4. "New Business Unit"
refers to a product which is new, or significantly, differentiated from another
product sold by the same company which has the potential to generate a new,
untapped revenue stream for the company.
5. For the example given, no it
would not need to run on totally different systems. The proposed product needs
to be substantially different than existing products the company sells, but the
underlying hardware can remain the same as needed.