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— Field notes

Solar news,
plainly told.

What's happening in solar — new research, shifting prices, better cells — translated into the same plain language the calculator uses.

Cutaway diagram of a tandem solar cell with layered perovskite on silicon, sun rays entering from the top left
October 14, 2026

BRIN's Study on Next-Generation Solar Panels

Indonesia's national research agency is weighing whether the country should manufacture heterojunction and perovskite–tandem cells instead of only assembling imported parts.

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A solar panel under a sky split between a sunny half with amber sun dots and a rainy half with storm clouds
October 2, 2026

Seasonal Changes in Solar Irradiation in Indonesia

Simulated daily irradiation in Surabaya swings from 7.18 kWh/m² in September to 3.91 kWh/m² in December — why a single annual average can overstate rainy-season output.

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A balance scale weighing one premium solar panel against several smaller plain panels, with a thin-line sun at the top left
September 19, 2026

Are Expensive Solar Panels Actually Worth It?

A pricier panel does not automatically mean cheaper electricity. What actually decides it: efficiency, heat tolerance, degradation, and the lifetime cost per kilowatt-hour.

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