Our model will use a barell system 2000 meters long to accellerate a shelled payload between 50-100 times the speed of sound into low earth orbit.
To minimize use of materials, it's support structure will be a mountain.
At its peak, the solar array will be supplied with about 25 square kilometers of receptors, which at 44 percent efficiency produces 66 Gwh's per day.
According to a WIRED Magazine article ( xxx ) it costs approximately 9.1 Kwh's to launch 1 Kilogram of material into low-earth orbit, therefore at 66 Gwh's a total of 7,250,000 Kg's can be launched DAILY, at 100 percent electric efficiency.
That is about 2,650,000,000 Kilograms, annually, and without a massively rocket feuled launcher, which represents the vast majority of the weight in a typical rocket delivery of orbital payloads, most of the aforementioned BILLIONS of kilos will be the actual payload itself....vastly more efficient than a rocket of any size.
The one unavoidable constraint is the need for durable cargo capable of high G resistance...meaning most living organisms would not survive launch into orbit.
Neveretheless, it is an excellent delivery system....especially orbital resupply, and building materials for facilities and space vehicles....which need to be exceptionally durable for prolonged use in space anyway.