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In a discovery that has sent shockwaves through the cybersecurity community, U.S. energy officials have found undocumented "rogue" communication devices hidden inside solar power inverters imported from China.
According to Reuters, experts have discovered secret cellular radios and other communications gear inside solar inverters and solar batteries made by Chinese companies. These components are widely used in U.S. infrastructure to connect solar panels to the grid and store solar energy.
This investigative article exposes the discovery of undocumented communication devices hidden in Chinese-made solar inverters, creating unprecedented vulnerabilities in global power grids.
It's not unusual for solar equipment to have built-in communication systems. These features allow companies to push software updates and monitor performance remotely. But the concerning part, according to Reuters, is that these specific devices were not documented. That means they were hidden on purpose.
Different places have different energy storage costs. China's average is $101 per kWh. The US average is $236 per kWh. Knowing the price of energy storage systems helps people plan for steady power. It also helps them handle money risks. As prices drop and technology gets better, people need to know what causes these changes.
The cost of a lithium-ion-based storage system is approximately $1,750 a kilowatt-hour, according to Renewable Energy World. Keep in mind that the cost increases if the system needs enlargement. Renewable Energy World also reports that a vanadium system costs $500 a kilowatt-hour or less.
Battery storage prices have gone down a lot since 2010. In 2025, they are about $200–$400 per kWh. This is because of new lithium battery chemistries. Different places have different energy storage costs. China's average is $101 per kWh. The US average is $236 per kWh. Knowing the price of energy storage systems helps people plan for steady power.
For longer-term storage, PSH and CAES give the lowest cost in $/kWh if an E/P ratio of 16 is used at $165/kWh and $104/kWh, respectively, inclusive of BOP and C&C costs, while their cost is $660/kWh and $417/kWh, respectively at an E/P ratio of 4.1 Hence, even at the low E/P ratio of 4, they are competitive with battery storage technologies.
Bangladesh's power sector relies heavily on gas. Currently, approximately 39 % of the installed power capacity is gas-based, 18 % is coal-based, 23 % is liquid fuel-based, 3 % is imported, 4 % is renewable energy, and 9 % is capitve power .
Bangladesh's power generation is based on fossil fuels, with natural gas contributing 65 % of power generation and a quarter of the generation coming from liquid fuel, while the rest comes from hydropower, coal, imported power, and renewables; more recently, LNG has been introduced into the energy mix .
120GW of RE generation. If a similar ra-tio were to be considered for Bangla-desh's short-term RE aspirations (~1GW in the next three years), the re-sulting energy storage requirements would amount to 250MW/ 500MWh of energy storage.
ems.Section 2.Introduction Bangladesh's electricity supply is dominated by gas-fired power plants, historically fueled by the c untry's domestic gas fields. As of the end of 2022, the country has a generation capacity of 23.2GW, 50% of which comes from gas-fired power plants, followed by oil-fired power plants (33%) and
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