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# 🔋 +120% Battery Storage Capacity. Enrollment Rates. Ageing Population.
- URL: https://newsletters.qs.com/120-battery-storage-capacity-enrollment-rates-ageing-population/
- Published: 2024-07-03T11:45:04.000Z
- Updated: 2024-07-03T11:45:03.000Z
- Description: Chart of the Day #128 looks at Enrollment Rate, Energy Storage and Ageing Population.
- Author: QS
- Tags: Charts

[**Ni hao**](https://en.wiktionary.org/wiki/%E4%BD%A0%E5%A5%BD?ref=newsletters.qs.com) 👋

The Scottish Parliament unanimously passed the [Circular Economy Bill](https://envirotecmagazine.com/2024/07/01/passage-of-the-circular-economy-bill-could-be-a-turning-point-for-scotland/?ref=newsletters.qs.com), a significant initiative to reduce waste and promote sustainability in Scotland. The European Commission announced the [selection of 14 new European University alliances that will receive funding](https://www.eeas.europa.eu/delegations/montenegro/new-funding-additional-european-universities-alliances-will-boost-cooperation-higher-education%5Fen?ref=newsletters.qs.com) under the Erasmus+ program to promote cooperation among higher education institutions.

### Today's Topics

🧑‍🎓 **Enrollment Rate.** US high schools have >45% fewer students than elementary schools  
🔋 **Energy Storage.** 120% YoY growth in global battery energy storage systems capacity   
**👴 Ageing Population.**  Nearly 10% of the global population Is aged 65+

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## 🧑‍🎓 US High Schools Have >45% Fewer Students Than Elementary Schools

[![](https://lh7-us.googleusercontent.com/docsz/AD_4nXdAPJaNugvxRksAqCwYfRlEspX5uhu8qzd65_u-JfoPbwZhBrKLm5Whb22rZR1GeagNX6axcF81AI5Fr3b89pKQxWkzGU8sSEjwzbVXAI8HOBb3Zkouqd0ovJYJVKwjN6WsLjPBRNUzYQAWiWdGJBNRteN_?key=EZnmQuv64JeinTCfyHac9g)](https://index.holoniq.com/charts/HCHLBOSPQPQU52P77XC5/Number-of-student-enrollments-in-the-United-States-by-education-level%252C-1964-2022-%28Millions-of-Students%29?ref=newsletters.qs.com)

Student enrollment in the United States has fluctuated over the years. While elementary school enrollment is strong, high school enrollment is nearly 47% lower. This gap can be attributed to high school dropout rates, delayed enrollment, and demographic shifts. College enrollment rates have tripled since 1964, reaching 17.2 million in 2022, indicating a growing trend in higher education.

## 🔋 120% YoY Growth in Global Battery Energy Storage Systems Capacity

[![](https://storage.ghost.io/c/f1/d4/f1d411df-6f49-4c75-a302-f8c9e9f59495/content/images/2024/07/HolonIQ_Global_installed_capacity_of_grid_scale_battery_energy_storage_systems_BESS_2013_2023_Gigawatts_HCH0VYB9RHJWPRALRZON.png)](https://index.holoniq.com/charts/HCH0VYB9RHJWPRALRZON/Global-installed-capacity-of-grid-scale-battery-energy-storage-systems-%28BESS%29%2C-2013-2023-%28Gigawatts%29?ref=newsletters.qs.com)

The global installed capacity of grid-scale battery energy storage systems (BESS) increased by over 120% from 2022 to 2023, reaching over 55 GW. BESS has shown steady growth from 2013 to 2020, followed by a significant increase starting in 2021\. This rapid increase shows the growing importance of BESS in supporting renewable energy integration and enhancing grid stability.

## 👴 Nearly 10% of the Global Population Is Aged 65+

[![](https://lh7-us.googleusercontent.com/docsz/AD_4nXd6wf7eKwPiZf9gCohxjIpAaWCXhF376m1zTQL24goaQCJQ72wRYmi1EPR41m-SJRrNcn7U6UmV3PzRUPH691X2EwYNfEnQrF5N5bB21Jre2dc5GffcKcofGsMskemjZukuEM2VKOWg_nTBXw3x6u66zg9E?key=EZnmQuv64JeinTCfyHac9g)](https://index.holoniq.com/charts/HCHUJPHGOK8HQF098Z9J/Percentage-of-world-population-aged-65-and-above%2C-1960-2022?ref=newsletters.qs.com)

The global population aged 65 and above increased significantly from 1960 to 2022, rising steadily and accelerating notably from the mid-1990s onward. By 2022, it reached nearly 10%, reflecting the aging demographic trend. In 2022, [Monaco had the highest elderly share at 35.92%](https://www.theglobaleconomy.com/rankings/elderly%5Fpopulation/?ref=newsletters.qs.com), followed by Japan at 29.92%. Qatar had the lowest share at 1.52%. In the United States, this rate increased from around 9% in 1950 to 17.3% in 2022.

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