The Switch Energy Planning model was originally written by Matthias Fripp as part of his dissertation at the University of California Berkeley in 2008. After Matthias graduated, the Renewable and Appropriate Energy Laboratory forked his codebase, writing new features and extending it to various regional studies. 

If you reuse this code, please cite the following study:

Nelson, James, Josiah Johnston, Ana Mileva, Matthias Fripp, Ian Hoffman, Autumn Petros-Good, Christian Blanco, and Daniel M. Kammen. "High-resolution modeling of the western North American power system demonstrates low-cost and low-carbon futures." Energy Policy 43 (2012): 436-447.

Other studies conducted with SWITCH include:

Fripp, Matthias. "Switch: a planning tool for power systems with large shares of intermittent renewable energy." Environmental science & technology 46.11 (2012): 6371-6378.

Wei, Max, James H. Nelson, Jeffery B. Greenblatt, Ana Mileva, Josiah Johnston, Michael Ting, Christopher Yang, Chris Jones, James E. McMahon, and Daniel M. Kammen. "Deep carbon reductions in California require electrification and integration across economic sectors." Environmental Research Letters 8, no. 1 (2013): 014038.

Mileva, Ana, et al. "SunShot solar power reduces costs and uncertainty in future low-carbon electricity systems." Environmental science & technology 47.16 (2013): 9053-9060.

Nelson, James; Ana Mileva; Josiah Johnston; Max Wei; Jeffery Greenblatt; Daniel Kammen. Renewable and Appropriate Energy Laboratory, Energy and Resources Group, (University of California, Berkeley). 2014. Scenarios for Deep Carbon Emission Reductions from Electricity by 2050 in Western North America Using the SWITCH Electric Power Sector Planning Model. California Energy Commission. Publication number: CEC‐500‐2014‐109.

Sanchez, Daniel L., et al. "Biomass enables the transition to a carbon-negative power system across western North America." Nature Climate Change 5.3 (2015): 230-234.

de Leon Barido, Diego Ponce, et al. "Evidence and future scenarios of a low-carbon energy transition in Central America: a case study in Nicaragua." Environmental Research Letters 10.10 (2015): 104002.

Mileva, Ana, et al. "Power system balancing for deep decarbonization of the electricity sector." Applied Energy 162 (2016): 1001-1009.

He, Gang, et al. "SWITCH-China: A Systems Approach to Decarbonize China’s Power System." Environmental science & technology (2016).