For GHG emission reduction potential and costs
Final Report, Specific Mitigation Opportunities Working Group, prepared for the Pan Canadian Climate Framework.
Mark Jaccard’s shop at SFU has published a number of paper that compare different policy instruments based on GHG reduction potential, costs, and other criteria including political feasibility. See also his “Win-Win” paper under required readings.
The Ecofiscal Commission has done considerable work on the GHG reduction potential and cost of different policy instruments.
Is your jurisdiction cover by the Deep Decarbonization Pathways Project? If so, you may find good resources in there on emission reduction potential of different strategies and possibly cost information as well.
Lots of cost and other data here in Jacobson’s work on decarbonizing the world
Tons of cost data available from IRENA
And REN21’s Renewables 2016 Global Status Report
McKinsey Pathways to a low-carbon economy: Version 2 of the global greenhouse gas abatement cost curve