Featured insights

Analysis
Struggling to break through: the state of rooftop solar in Indonesia
What satellite imagery reveals about small-scale solar PV installation rates in Southeast Asia’s largest coal system

Explainer
Coal in Southeast Asia will not flex on command
Legacy contracts and market rules still reward baseload output, despite the engineering potential to reduce reliance on coal.

Update
Free, no-code hourly dispatch modelling is here
Scenario Builder now bridges the gap between long-term investment planning and short-term operations modelling
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Update
A year of solar acceleration: the Q4 2025 Solar Asset Mapper release
From China’s runaway growth to new hotspots in the Philippines and South Africa — TZ-SAM’s latest update captures a record year for global solar, plus key lessons from 2025.

Update
Free, no-code hourly dispatch modelling is here
Scenario Builder now bridges the gap between long-term investment planning and short-term operations modelling

Update
Tracking the solar revolution: inside the Q3 2025 Solar Asset Mapper release
From Saudi Arabia’s mega projects to Pakistan’s rooftops — TZ-SAM’s Q3 2025 update tracks solar’s advance across continents, alongside new research on distributed systems.

Update
Open source interoperability: integrating OSeMOSYS and PyPSA for power system analysis
How our unified, interoperable data model allows results from one model framework can be easily shared between and across multiple others

Update
Solar Asset Mapper Q1 2025 data release
Top-level highlights from our second rolling quarterly release of TZ-SAM

Update
Southeast Asia at the crossroads
Energy transition trends to watch in 2025

Update
Solar Asset Mapper is now released quarterly
Following today’s Q4 2024 release of TZ-SAM, we’re bringing you updates more regularly

Update
Our secret master plan
Don't tell anybody!
