> ## Documentation Index > Fetch the complete documentation index at: https://docs.transitionzero.org/llms.txt > Use this file to discover all available pages before exploring further. # Country models > Browse the power system models available in Scenario Builder, by country and region. Scenario Builder provides calibrated, ready-to-run power system models for the countries and regions below. Each card shows the model types available and the spatial resolution on offer. Select a model to see its scope, data sources, and data standards. Capacity Expansion · Dispatch · National and 7-node regional National and 3-node regional National and 2-node regional Capacity Expansion · Dispatch · National (single node) Capacity Expansion · Dispatch · National (single node) Capacity Expansion · Dispatch · National (single node) Capacity Expansion · Dispatch · National (single node) Capacity Expansion · Dispatch · National (single node) Capacity Expansion · Dispatch · National and 3-node regional Capacity Expansion · Dispatch · National and 3-node regional Capacity Expansion · Dispatch · National and 3-node regional Capacity Expansion · Dispatch · National and 3-node regional National and 10-node regional Capacity Expansion · Dispatch · National (single node) Capacity Expansion · Dispatch · National and 5-node regional Capacity Expansion · Dispatch · National and 9-node regional Capacity Expansion · Dispatch · 10-node and 25-node regional