Scorecard reveals crisis of confidence among wind and solar investors, not a lack of capacity

Australia needs nearly 38,000 megawatts of new wind and solar capacity by 2030 to meet the 82% renewable target. As of June 2026, only 4,716 MW was under construction. A scorecard from Green Energy Markets and the Institute of Energy Economics and Financial Analysis shows an ample pipeline of 88,000 MW in development with environmental approvals, yet projects are stalling at the financing stage. The bottleneck is not supply of projects or land, but investor confidence. Long-term power purchase contracts with retailers and large corporates have become the critical constraint: projects cannot reach construction without them.

Where this fits

This exposes a deepening reliability problem hiding behind the renewables cost narrative. A grid built only on wind and solar must overbuild transmission and maintain gas backup to manage weather variability. Large power customers are reluctant to lock into long-term contracts because they are uncertain about the system's stability and cost under weather-dependent generation. The scorecard confirms what grid operators have long known: cheapness per megawatt-hour is not the same as a workable grid. Australia is attempting to reach a renewable target without solving the firming and storage problem, and capital markets are pricing that risk.

What it means

Investor hesitation is rational. Until Australia addresses grid inertia, storage duration, and the gas capacity that will remain essential for decades, customers will not commit to renewable-dependent supply. The alternative, a firm generation source like nuclear, remains illegal. The pipeline of approved projects cannot convert to built capacity because the fundamental grid architecture required to make weather-dependent generation reliable at scale remains unresolved. Australia is running out of time to solve this before 2030.