Software as a service (SAAS) services featuring software for use in managing and submitting proposals for solar installation, integrating financing, documentation, engineering and computer aided drafting for solar projects; software as a service (SAAS) services featuring software for solar proposal management; software as a service (SAAS) services featuring software for proposal and contract management in the solar field; providing temporary use of non-downloadable software for proposal and contract management in the solar field; software as a service (SAAS) services featuring software for determining solar panel layouts and calculating energy production from solar panel systems; providing temporary use of non-downloadable software for determining solar panel layouts and calculating energy production from solar panel systems; providing temporary use of a web-based software application for residential solar system design, pricing, estimated savings, and installation planning; software as a service (SAAS) services featuring software for residential solar system design, pricing, estimated savings, and installation planning; providing on-line non-downloadable software for solar permits by using computer-aided design (CAD) tool to prepare the necessary drawings that are required by the applicable utility, jurisdiction, and installer to complete a solar installation; providing on-line non-downloadable software that enables users to design, engineer, and obtain permits for solar projects