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<\/figure><\/div>\n\n\n- \n
- Power grids weren\u2019t designed to handle new types of electricity demands and supplies.<\/li>\n\n\n\n
- Battery energy storage systems are key to transforming and protecting the grid.<\/li>\n\n\n\n
- Innovation in battery-management and high-voltage semiconductors help grids get the most out of battery storage.<\/li>\n<\/ul>\n\n\n\n
The growing adoption of electric vehicles (EVs) and the transition to more renewable energy sources are reducing our more-than-century-long reliance on fossil fuels. Electric utilities are increasingly turning to solar panels and wind turbines rather than natural gas-fueled turbines to generate the electricity needed to charge EVs, as well as help power our homes and businesses. Together, these trends are poised to bring us closer to a sustainable energy future.<\/p>\n\n\n\n
Those same trends also pose a big challenge to the electricity grid. Demand can vary throughout the day \u2013 and so can supplies of solar and wind energy based on changes in the weather. That\u2019s why batteries are becoming an essential component of the grid.<\/p>\n\n\n\n
\u201cBatteries can fill in the gap when it\u2019s cloudy and the wind dies down,\u201d said Richard Zhang, a Virginia Tech professor who teaches power electronics and has worked in the grid and energy industry for 25 years. \u201cAnd batteries improve the economics of electricity because they can be charged during off-peak times, providing electricity for charging EVs at peak times.\u201d<\/p>\n\n\n\n
Getting batteries to safely, reliably and cost-effectively store and release the large amounts of electricity running through the grid is a complex challenge. That\u2019s where our company\u2019s expertise in providing advanced battery-management semiconductor solutions can make a big difference.<\/p>\n\n\n\n
\u201cThe bigger, higher-voltage batteries used in the grid require better thermal management and more precise monitoring,\u201d said Samuel Wong, our company\u2019s vice president and general manager of Battery Management Solutions. \u201cEffectively managing those batteries requires understanding battery chemistry and adapting high-performance semiconductor devices to safely get the most out of each battery.\u201d<\/p>\n\n\n
\n![\"\"](\"https:\/\/electronicsmaker.com\/wp-content\/uploads\/2025\/01\/TI_quote-1024x512.jpg\")
<\/figure><\/div>\n\n\nSmoothing out the grid<\/strong><\/p>\n\n\n\n
The adoption of solar and wind generation and EVs is good news for the planet, Richard said. The problem is that power grids weren\u2019t originally designed to handle these new types of electricity demands on available energy.<\/p>\n\n\n\n
\u201cGetting people to switch to EVs is easier today than it was just a few years ago,\u201d he said. \u201cNow the growing issue is getting the electricity infrastructure to handle them, alongside other energy demands.\u201d<\/p>\n\n\n\n
The challenge, Samuel said, is grid instability \u2013 in other words, fluctuations in electricity generation and usage. Variations in energy supply occur in solar and wind generation, especially the complete loss of solar power at night. Supply and demand swings may also occur from the charging routines of EV owners.<\/p>\n\n\n\n
\u201cIf everyone comes home in the evening and plugs in their EVs for the night, the grid might not be able to handle it,\u201d he said.<\/p>\n\n\n\n
Samuel and Richard, like most power experts, agree on the solution to grid instability: energy storage systems (ESS). Storage systems \u2013 usually in the form of batteries \u2013 can capture and hold excess energy in the grid when supply is high and demand is low, and then make it available at other times. You may be picturing the relatively small, light battery cells used in EVs. But for the grid, an ESS might consist of a railroad-car-sized stack of bigger, heavier cells that each can operate at as much as 4 megawatt-hours (MWh) \u2013 enough energy to power thousands of homes.<\/p>\n\n\n\n
Staging storage systems at different points in the grid optimizes their ability to distribute enormous amounts of electricity to neighborhoods when and where they\u2019re needed. That can mean placing an ESS alongside a solar panel farm, where it can soak up the excess energy during the day and then pump it back out to the grid at night. Or, an ESS placed in a community can more easily grab energy from local rooftop solar panels and later supply the extra electricity needed to charge nearby EVs. \u201cAn ESS can serve as a local reservoir for the community,\u201d Samuel said.<\/p>\n\n\n\n
Managing battery and system performance<\/strong><\/p>\n\n\n\n
At the heart of storage systems are high-voltage battery modules \u2013 typically lithium-iron phosphate cells \u2013 capable of generating enormous amounts of heat if charged or discharged too quickly. These modules can also have shortened lifetimes if completely depleted too often.<\/p>\n\n\n\n
Monitoring temperature and charge in these batteries requires extremely precise semiconductors, such as the BQ79616 industrial battery monitor, Samuel said. That\u2019s because even tiny fluctuations in temperature and voltage can signal that a battery may need attention.<\/p>\n\n\n\n
\u201cYou have to get to millivolt accuracy to know how much charge is left in a battery,\u201d he said.<\/p>\n\n\n\n
Our company\u2019s extensive experience in ultra-precise battery monitors is proving essential in helping the ESS industry produce systems that can supply the grid with vital battery-management data. The results can have a big impact on the cost-effectiveness of a grid ESS, Samuel said.<\/p>\n\n\n\n
\u201cIf you can only measure the charge in a 10-MWh ESS with 5% accuracy, then you can\u2019t safely use more than 9.5 MWh,\u201d he said. \u201cOur battery monitors can get the accuracy measurement to 1%, which enables you to use 9.9 MWh.\u201d<\/p>\n\n\n\n
In addition to accurate battery monitoring, grid-scale energy storage systems such as the ones integrated with solar panel farms require efficient high-voltage power conversion that help reduce power losses when transferring power to and from the grid. These systems also rely on sensing and isolation technologies that help maintain system safety and stability, which is critical for managing electricity flow as high as 1500 V.<\/p>\n\n\n\n
Impacting the future<\/strong><\/p>\n\n\n\n
For the foreseeable future, innovation in battery ESS looks to be the key to transform and protect the grid from the variabilities coming from solar and wind energy, as well as EV charging.<\/p>\n\n\n\n
\u201cIt\u2019s really exciting to contribute to strengthening the grid with innovations in energy storage,\u201d Samuel said. \u201cWe can already do a lot today, and we\u2019ll be able to do a lot more as we build out tomorrow\u2019s smart grid.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"
By Samuel Wong, Vice President of Battery Management Solutions, TI Semiconductor innovations in battery systems are leading to energy storage adoption The growing adoption of electric vehicles (EVs) and the transition to more renewable energy sources are reducing our more-than-century-long reliance on fossil fuels. Electric utilities are increasingly turning to solar panels and wind turbines […]<\/p>\n","protected":false},"author":2,"featured_media":79868,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[5355,8],"yoast_head":"\n
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