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In this article:See more ▼Post may contain affiliate links which give us commissions at no cost to you.Preppy fonts capture that quintessential East Coast elite vibe – think Nantucket summers, yacht clubs, and monogrammed everything. These typefaces embody the perfect balance of tradition and refinement that makes preppy design so timeless and aspirational. But here’s the thing: not all fonts can pull off that coveted preppy aesthetic. The best preppy fonts have a certain je ne sais quoi – they’re classic without being stuffy, elegant without being pretentious, and refined without being inaccessible. In this comprehensive guide, we’ll explore the most gorgeous preppy fonts that’ll have your designs looking like they belong in the pages of Town & Country magazine. So grab your pearls and let’s dive into this typographic treasure trove! 👋 Psst... Did you know you can get unlimited downloads of 59,000+ fonts and millions of other creative assets for just $16.95/mo? Learn more »The Preppiest Fonts That Define 2025 Let’s start with the crème de la crème – the fonts that truly embody that preppy spirit. I’ve curated this list based on their ability to channel that classic New England charm while remaining versatile enough for modern design needs. Gatsby Prelude Gatsby Prelude is an elegant and modern Art Deco font duo. It combines sans-serif characters with decorative elements, perfect for creating sophisticated designs with a touch of vintage glamour.Burtuqol Burtuqol is a vintage slab serif font that exudes a retro charm. Its bold, chunky serifs and aged appearance make it ideal for projects requiring a nostalgic or timeworn aesthetic.Gafler Gafler is a classy vintage serif font with decorative elements. It combines elegance with a touch of old-world charm, making it perfect for high-end branding and classic design projects.Get 300+ Fonts for FREEEnter your email to download our 100% free "Font Lover's Bundle". For commercial & personal use. No royalties. No fees. No attribution. 100% free to use anywhere. Kagnue Kagnue is a modern and classy serif font. It offers a fresh take on traditional serif typefaces, blending contemporary design with timeless elegance for versatile use in various design contexts.The Blendinroom The Blendinroom is a retro serif typeface featuring luxurious ligatures. Its vintage-inspired design and intricate details make it ideal for creating sophisticated, old-world aesthetics in design projects.MODER BULES MODER BULES is a playful sans-serif font with a fun, childlike appeal. Its quirky design makes it perfect for kids-oriented projects or Halloween-themed designs, adding a touch of whimsy to typography.Nickey Vintage Nickey Vintage is a decorative display font with a strong vintage flair. Its bold, eye-catching characters make it ideal for headlines, logos, and designs that require a striking retro aesthetic.Ladger Ladger is a casual script font that exudes luxury and elegance. Its flowing lines and graceful curves make it perfect for logo designs, high-end branding, and projects requiring a touch of sophistication.Hadnich Hadnich is a modern script font with a brush-like quality. Its versatile design makes it suitable for various applications, from signage to branding, offering a contemporary take on handwritten typography.Belly and Park Belly and Park is a condensed beauty classic font family featuring both serif and sans-serif styles. Its vintage-inspired design and narrow characters make it ideal for creating elegant, space-efficient layouts.Loubag Loubag is a modern retro font family encompassing sans-serif, serif, and decorative styles. Its bold, fashion-forward design makes it perfect for creating eye-catching headlines and trendy branding materials.Petter And Sons Petter And Sons is a romantic beauty script font with decorative elements. Its elegant, flowing design makes it ideal for wedding invitations, luxury branding, and projects requiring a touch of refined beauty.Preteoria Preteoria is a modern cursive font with a sleek, contemporary feel. Its smooth curves and clean lines make it versatile for various design applications, from branding to digital media projects.Delauney Delauney is an Art Deco-inspired sans-serif font that captures the essence of the roaring twenties. Its geometric shapes and sleek lines make it perfect for creating designs with a bold, metropolitan flair.Amadi Vintage Amadi Vintage is a chic and beautiful serif font with a timeless appeal. Its elegant design and vintage-inspired details make it ideal for creating sophisticated, classic-looking designs and branding materials.LEDERSON LEDERSON is a vintage-inspired shadow font. Its weathered look and strong character make it perfect for designs requiring an authentic, aged aesthetic.Fancyou Fancyou is a versatile serif font with alternate characters. Its elegant design and customizable options make it suitable for a wide range of projects, from formal invitations to modern branding materials.Catterpie Font Catterpie is a handwritten script font that mimics natural handlettering. Its fluid, signature-like style makes it perfect for creating personal, authentic-looking designs and branding materials.Jemmy Wonder Jemmy Wonder is a Victorian-inspired serif font with a strong vintage character. Its ornate details and old-world charm make it ideal for creating designs with a classic, nostalgic feel.Monthey Monthey is a bold, elegant vintage display serif font. Its chunky characters and 70s-inspired design make it perfect for creating eye-catching headlines and retro-themed branding materials.Madville Madville is a classy script font with a versatile design. Its elegant curves and smooth transitions make it suitable for a wide range of projects, from formal invitations to modern branding materials.Crowk Crowk is a luxury serif font with a timeless, elegant appeal. Its refined design and classic proportions make it ideal for high-end branding, editorial layouts, and sophisticated design projects.Peachy Fantasy Peachy Fantasy is an Art Nouveau-inspired display font with decorative elements. Its vintage charm and unique character make it perfect for creating eye-catching headlines and artistic design projects.Cormier Cormier is a decorative sans-serif font with a strong artistic flair. Its unique design and fashion-forward aesthetic make it ideal for creating bold, attention-grabbing headlines and branding materials.Syntage Syntage is a decorative modern luxury font with both serif and ornamental elements. Its retro-inspired design and luxurious details make it perfect for high-end branding and sophisticated design projects.Jeniffer Selfies Jeniffer Selfies is a retro-inspired bold font combining sans-serif and script styles. Its playful design and vintage feel make it ideal for creating nostalgic, fun-loving designs and branding materials.The Rilman The Rilman is a ligature-rich rounded sans-serif font with a 90s-inspired design. Its retro charm and smooth edges make it perfect for creating playful, nostalgic designs and branding materials.Milky Croffle Milky Croffle is a classic beauty elegant serif font. Its refined design and timeless appeal make it ideal for creating sophisticated layouts, high-end branding, and projects requiring a touch of traditional elegance. What Makes a Font Feel Preppy? You might be wondering what exactly gives a font that unmistakable preppy vibe. After years of working with typography, I’ve identified several key characteristics that define the preppy aesthetic: Classic Serif Structure: Most preppy fonts are serifs, drawing inspiration from traditional typography used in prestigious publications and academic institutions. These serifs aren’t just decorative – they’re a nod to centuries of refined typographic tradition. Elegant Proportions: Preppy fonts tend to have well-balanced letterforms with moderate contrast between thick and thin strokes. They’re neither too delicate nor too bold – just perfectly poised, like a well-tailored blazer. Timeless Appeal: The best preppy fonts don’t scream “trendy.” Instead, they whisper “timeless.” They’re the typography equivalent of a strand of pearls – always appropriate, never out of style. Sophisticated Details: Look for subtle refinements in letterforms – graceful curves, well-crafted terminals, and thoughtful spacing. These details separate truly preppy fonts from their more pedestrian cousins. Heritage Inspiration: Many preppy fonts draw inspiration from historical typefaces used by Ivy League universities, prestigious publishing houses, and old-money families. This connection to tradition is what gives them their authentic preppy pedigree. Where to Use Preppy Fonts (And Where Not To) Preppy fonts aren’t one-size-fits-all solutions, but when used appropriately, they’re absolutely magical. Here’s where they shine brightest: Wedding Invitations: Nothing says “elegant affair” quite like a beautifully chosen preppy serif. These fonts are perfect for formal invitations, save-the-dates, and wedding stationery that needs to feel sophisticated and timeless. Luxury Branding: Brands targeting affluent audiences or positioning themselves as premium often benefit from preppy typography. Think boutique hotels, high-end fashion, or artisanal goods. Editorial Design: Magazines, newsletters, and publications focusing on lifestyle, fashion, or culture can leverage preppy fonts to establish credibility and sophistication. Corporate Identity: Professional services, law firms, financial institutions, and consulting companies often choose preppy fonts to convey trustworthiness and establishment credibility. Academic Materials: Universities, prep schools, and educational institutions naturally gravitate toward preppy typography that reflects their traditional values and heritage. However, preppy fonts might not be the best choice for: Tech Startups: The traditional nature of preppy fonts can feel at odds with innovation and disruption. Modern sans serifs usually work better for tech companies. Children’s Brands: While elegant, preppy fonts might feel too formal for products targeting young children. Playful, rounded fonts are typically more appropriate. Casual Brands: If your brand personality is laid-back and approachable, overly formal preppy fonts might create distance between you and your audience. How to Choose the Perfect Preppy Font Selecting the right preppy font requires careful consideration of several factors. Here’s my tried-and-true process: Consider Your Audience: Are you designing for actual prep school alumni, or are you trying to capture that aspirational preppy aesthetic for a broader audience? Your target demographic should influence how traditional or accessible your font choice is. Evaluate the Context: A wedding invitation can handle more ornate details than a business card. Consider where your text will appear and how much personality the context can support. Test Readability: Preppy doesn’t mean hard to read. Always test your chosen font at various sizes to ensure it remains legible. Your typography should enhance communication, not hinder it. Think About Pairing: Will you be using this font alone or pairing it with others? Consider how your preppy serif will work alongside sans serifs for body text or script fonts for accents. Consider Your Medium: Some preppy fonts work beautifully in print but struggle on screens. Others are optimized for digital use but lose their charm in print. Choose accordingly. Pairing Preppy Fonts Like a Pro The magic of preppy typography often lies in thoughtful font pairing. Here are some winning combinations that never fail: Classic Serif + Clean Sans Serif: Pair your preppy serif headline font with a crisp, readable sans serif for body text. This creates hierarchy while maintaining sophistication. Traditional Serif + Script Accent: Use a refined script font sparingly for special elements like signatures or decorative text, balanced by a solid preppy serif for main content. Serif + Serif Variation: Sometimes pairing two serifs from the same family – perhaps a regular weight for body text and a bold condensed version for headlines – creates beautiful, cohesive designs. Remember, less is often more with preppy design. Stick to two or three fonts maximum, and let the inherent elegance of your chosen typefaces do the heavy lifting. The Psychology Behind Preppy Typography Understanding why preppy fonts work so well psychologically can help you use them more effectively. These typefaces tap into powerful associations: Trust and Reliability: The traditional nature of preppy fonts suggests stability and permanence. When people see these fonts, they subconsciously associate them with established institutions and time-tested values. Sophistication and Education: Preppy fonts are reminiscent of academic institutions and intellectual pursuits. They suggest refinement, education, and cultural awareness. Exclusivity and Status: Let’s be honest – part of the preppy aesthetic’s appeal is its association with privilege and exclusivity. These fonts can make designs feel more premium and aspirational. Quality and Craftsmanship: The careful attention to typographic detail in preppy fonts suggests similar attention to quality in whatever they’re representing. Modern Takes on Classic Preppy Style While preppy fonts are rooted in tradition, the best designers know how to give them contemporary flair. Here are some ways to modernize preppy typography: Unexpected Color Palettes: Pair traditional preppy fonts with modern colors. Think sage green and cream instead of navy and white, or soft blush tones for a fresh take. Generous White Space: Give your preppy fonts room to breathe with plenty of white space. This modern approach to layout keeps traditional fonts feeling fresh and uncluttered. Mixed Media Integration: Combine preppy typography with photography, illustrations, or graphic elements for a more contemporary feel while maintaining that sophisticated foundation. Strategic Contrast: Pair your refined preppy fonts with unexpected elements – maybe a bold geometric shape or modern photography – to create dynamic tension. Preppy Font Alternatives for Every Budget Not every preppy project has a premium font budget, and that’s okay! Here are some strategies for achieving that coveted preppy look without breaking the bank: Google Fonts Gems: Fonts like Playfair Display, Crimson Text, and Libre Baskerville offer sophisticated serif options that can work beautifully for preppy designs. Font Pairing Magic: Sometimes combining two free fonts thoughtfully can create a more expensive-looking result than using a single premium font poorly. Focus on Execution: A free font used with excellent spacing, hierarchy, and layout will always look better than an expensive font used carelessly. Common Preppy Font Mistakes to Avoid Even with the perfect preppy font, poor execution can ruin the effect. Here are the most common mistakes I see designers make: Overdoing the Decoration: Just because a font has elegant details doesn’t mean you need to add more flourishes. Let the typeface’s inherent sophistication speak for itself. Ignoring Hierarchy: Preppy design relies on clear, elegant hierarchy. Don’t make everything the same size or weight – create visual flow through thoughtful typography scaling. Poor Spacing: Cramped text kills the elegant feel of preppy fonts. Give your typography generous leading and appropriate margins. Wrong Context: Using an ultra-formal preppy font for a casual pizza restaurant’s menu will feel jarring and inappropriate. Match your font choice to your content and audience. The Future of Preppy Typography As we look ahead in 2025, preppy fonts continue to evolve while maintaining their classic appeal. We’re seeing interesting trends emerge: Variable Font Technology: Modern preppy fonts are increasingly available as variable fonts, allowing designers to fine-tune weight, width, and optical size for perfect customization. Screen Optimization: Classic preppy fonts are being redrawn and optimized for digital screens without losing their traditional charm. Inclusive Preppy: Designers are expanding the preppy aesthetic beyond its traditional boundaries, creating fonts that maintain sophistication while feeling more accessible and diverse. Sustainable Design: The timeless nature of preppy fonts aligns perfectly with sustainable design principles – these typefaces won’t look dated next year, making them environmentally responsible choices. Conclusion: Embracing Timeless Elegance Preppy fonts represent more than just letterforms – they’re a gateway to timeless elegance and sophisticated communication. Whether you’re designing wedding invitations for a Martha’s Vineyard ceremony or creating brand identity for a boutique law firm, the right preppy font can elevate your work from merely professional to genuinely distinguished. The beauty of preppy typography lies in its ability to feel both traditional and fresh, formal yet approachable. These fonts have stood the test of time because they tap into something fundamental about how we perceive quality, tradition, and sophistication. As you explore the world of preppy fonts, remember that the best typography choices support your message rather than overshadowing it. Choose fonts that enhance your content’s inherent qualities and speak to your audience’s aspirations and values. So whether you’re channeling that old-money aesthetic or simply want to add a touch of refined elegance to your designs, preppy fonts offer a wealth of possibilities. After all, good typography, like good manners, never goes out of style.

Reading Time: 9 minutes In marketing, data isn’t a buzzword. It’s the lifeblood of all successful campaigns. But are you truly harnessing its power, or are you drowning in a sea of information? To answer this question (and many others), we sat down with Ankur Kothari, a seasoned Martech expert, to dive deep into this crucial topic. This interview, originally conducted for Chapter 6 of “The Customer Engagement Book: Adapt or Die” explores how businesses can translate raw data into actionable insights that drive real results. Ankur shares his wealth of knowledge on identifying valuable customer engagement data, distinguishing between signal and noise, and ultimately, shaping real-time strategies that keep companies ahead of the curve.   Ankur Kothari Q&A Interview 1. What types of customer engagement data are most valuable for making strategic business decisions? Primarily, there are four different buckets of customer engagement data. I would begin with behavioral data, encompassing website interaction, purchase history, and other app usage patterns. Second would be demographic information: age, location, income, and other relevant personal characteristics. Third would be sentiment analysis, where we derive information from social media interaction, customer feedback, or other customer reviews. Fourth would be the customer journey data. We track touchpoints across various channels of the customers to understand the customer journey path and conversion. Combining these four primary sources helps us understand the engagement data. 2. How do you distinguish between data that is actionable versus data that is just noise? First is keeping relevant to your business objectives, making actionable data that directly relates to your specific goals or KPIs, and then taking help from statistical significance. Actionable data shows clear patterns or trends that are statistically valid, whereas other data consists of random fluctuations or outliers, which may not be what you are interested in. You also want to make sure that there is consistency across sources. Actionable insights are typically corroborated by multiple data points or channels, while other data or noise can be more isolated and contradictory. Actionable data suggests clear opportunities for improvement or decision making, whereas noise does not lead to meaningful actions or changes in strategy. By applying these criteria, I can effectively filter out the noise and focus on data that delivers or drives valuable business decisions. 3. How can customer engagement data be used to identify and prioritize new business opportunities? First, it helps us to uncover unmet needs. By analyzing the customer feedback, touch points, support interactions, or usage patterns, we can identify the gaps in our current offerings or areas where customers are experiencing pain points. Second would be identifying emerging needs. Monitoring changes in customer behavior or preferences over time can reveal new market trends or shifts in demand, allowing my company to adapt their products or services accordingly. Third would be segmentation analysis. Detailed customer data analysis enables us to identify unserved or underserved segments or niche markets that may represent untapped opportunities for growth or expansion into newer areas and new geographies. Last is to build competitive differentiation. Engagement data can highlight where our companies outperform competitors, helping us to prioritize opportunities that leverage existing strengths and unique selling propositions. 4. Can you share an example of where data insights directly influenced a critical decision? I will share an example from my previous organization at one of the financial services where we were very data-driven, which made a major impact on our critical decision regarding our credit card offerings. We analyzed the customer engagement data, and we discovered that a large segment of our millennial customers were underutilizing our traditional credit cards but showed high engagement with mobile payment platforms. That insight led us to develop and launch our first digital credit card product with enhanced mobile features and rewards tailored to the millennial spending habits. Since we had access to a lot of transactional data as well, we were able to build a financial product which met that specific segment’s needs. That data-driven decision resulted in a 40% increase in our new credit card applications from this demographic within the first quarter of the launch. Subsequently, our market share improved in that specific segment, which was very crucial. 5. Are there any other examples of ways that you see customer engagement data being able to shape marketing strategy in real time? When it comes to using the engagement data in real-time, we do quite a few things. In the recent past two, three years, we are using that for dynamic content personalization, adjusting the website content, email messaging, or ad creative based on real-time user behavior and preferences. We automate campaign optimization using specific AI-driven tools to continuously analyze performance metrics and automatically reallocate the budget to top-performing channels or ad segments. Then we also build responsive social media engagement platforms like monitoring social media sentiments and trending topics to quickly adapt the messaging and create timely and relevant content. With one-on-one personalization, we do a lot of A/B testing as part of the overall rapid testing and market elements like subject lines, CTAs, and building various successful variants of the campaigns. 6. How are you doing the 1:1 personalization? We have advanced CDP systems, and we are tracking each customer’s behavior in real-time. So the moment they move to different channels, we know what the context is, what the relevance is, and the recent interaction points, so we can cater the right offer. So for example, if you looked at a certain offer on the website and you came from Google, and then the next day you walk into an in-person interaction, our agent will already know that you were looking at that offer. That gives our customer or potential customer more one-to-one personalization instead of just segment-based or bulk interaction kind of experience. We have a huge team of data scientists, data analysts, and AI model creators who help us to analyze big volumes of data and bring the right insights to our marketing and sales team so that they can provide the right experience to our customers. 7. What role does customer engagement data play in influencing cross-functional decisions, such as with product development, sales, and customer service? Primarily with product development — we have different products, not just the financial products or products whichever organizations sell, but also various products like mobile apps or websites they use for transactions. So that kind of product development gets improved. The engagement data helps our sales and marketing teams create more targeted campaigns, optimize channel selection, and refine messaging to resonate with specific customer segments. Customer service also gets helped by anticipating common issues, personalizing support interactions over the phone or email or chat, and proactively addressing potential problems, leading to improved customer satisfaction and retention. So in general, cross-functional application of engagement improves the customer-centric approach throughout the organization. 8. What do you think some of the main challenges marketers face when trying to translate customer engagement data into actionable business insights? I think the huge amount of data we are dealing with. As we are getting more digitally savvy and most of the customers are moving to digital channels, we are getting a lot of data, and that sheer volume of data can be overwhelming, making it very difficult to identify truly meaningful patterns and insights. Because of the huge data overload, we create data silos in this process, so information often exists in separate systems across different departments. We are not able to build a holistic view of customer engagement. Because of data silos and overload of data, data quality issues appear. There is inconsistency, and inaccurate data can lead to incorrect insights or poor decision-making. Quality issues could also be due to the wrong format of the data, or the data is stale and no longer relevant. As we are growing and adding more people to help us understand customer engagement, I’ve also noticed that technical folks, especially data scientists and data analysts, lack skills to properly interpret the data or apply data insights effectively. So there’s a lack of understanding of marketing and sales as domains. It’s a huge effort and can take a lot of investment. Not being able to calculate the ROI of your overall investment is a big challenge that many organizations are facing. 9. Why do you think the analysts don’t have the business acumen to properly do more than analyze the data? If people do not have the right idea of why we are collecting this data, we collect a lot of noise, and that brings in huge volumes of data. If you cannot stop that from step one—not bringing noise into the data system—that cannot be done by just technical folks or people who do not have business knowledge. Business people do not know everything about what data is being collected from which source and what data they need. It’s a gap between business domain knowledge, specifically marketing and sales needs, and technical folks who don’t have a lot of exposure to that side. Similarly, marketing business people do not have much exposure to the technical side — what’s possible to do with data, how much effort it takes, what’s relevant versus not relevant, and how to prioritize which data sources will be most important. 10. Do you have any suggestions for how this can be overcome, or have you seen it in action where it has been solved before? First, cross-functional training: training different roles to help them understand why we’re doing this and what the business goals are, giving technical people exposure to what marketing and sales teams do. And giving business folks exposure to the technology side through training on different tools, strategies, and the roadmap of data integrations. The second is helping teams work more collaboratively. So it’s not like the technology team works in a silo and comes back when their work is done, and then marketing and sales teams act upon it. Now we’re making it more like one team. You work together so that you can complement each other, and we have a better strategy from day one. 11. How do you address skepticism or resistance from stakeholders when presenting data-driven recommendations? We present clear business cases where we demonstrate how data-driven recommendations can directly align with business objectives and potential ROI. We build compelling visualizations, easy-to-understand charts and graphs that clearly illustrate the insights and the implications for business goals. We also do a lot of POCs and pilot projects with small-scale implementations to showcase tangible results and build confidence in the data-driven approach throughout the organization. 12. What technologies or tools have you found most effective for gathering and analyzing customer engagement data? I’ve found that Customer Data Platforms help us unify customer data from various sources, providing a comprehensive view of customer interactions across touch points. Having advanced analytics platforms — tools with AI and machine learning capabilities that can process large volumes of data and uncover complex patterns and insights — is a great value to us. We always use, or many organizations use, marketing automation systems to improve marketing team productivity, helping us track and analyze customer interactions across multiple channels. Another thing is social media listening tools, wherever your brand is mentioned or you want to measure customer sentiment over social media, or track the engagement of your campaigns across social media platforms. Last is web analytical tools, which provide detailed insights into your website visitors’ behaviors and engagement metrics, for browser apps, small browser apps, various devices, and mobile apps. 13. How do you ensure data quality and consistency across multiple channels to make these informed decisions? We established clear guidelines for data collection, storage, and usage across all channels to maintain consistency. Then we use data integration platforms — tools that consolidate data from various sources into a single unified view, reducing discrepancies and inconsistencies. While we collect data from different sources, we clean the data so it becomes cleaner with every stage of processing. We also conduct regular data audits — performing periodic checks to identify and rectify data quality issues, ensuring accuracy and reliability of information. We also deploy standardized data formats. On top of that, we have various automated data cleansing tools, specific software to detect and correct data errors, redundancies, duplicates, and inconsistencies in data sets automatically. 14. How do you see the role of customer engagement data evolving in shaping business strategies over the next five years? The first thing that’s been the biggest trend from the past two years is AI-driven decision making, which I think will become more prevalent, with advanced algorithms processing vast amounts of engagement data in real-time to inform strategic choices. Somewhat related to this is predictive analytics, which will play an even larger role, enabling businesses to anticipate customer needs and market trends with more accuracy and better predictive capabilities. We also touched upon hyper-personalization. We are all trying to strive toward more hyper-personalization at scale, which is more one-on-one personalization, as we are increasingly capturing more engagement data and have bigger systems and infrastructure to support processing those large volumes of data so we can achieve those hyper-personalization use cases. As the world is collecting more data, privacy concerns and regulations come into play. I believe in the next few years there will be more innovation toward how businesses can collect data ethically and what the usage practices are, leading to more transparent and consent-based engagement data strategies. And lastly, I think about the integration of engagement data, which is always a big challenge. I believe as we’re solving those integration challenges, we are adding more and more complex data sources to the picture. So I think there will need to be more innovation or sophistication brought into data integration strategies, which will help us take a truly customer-centric approach to strategy formulation.   This interview Q&A was hosted with Ankur Kothari, a previous Martech Executive, for Chapter 6 of The Customer Engagement Book: Adapt or Die. Download the PDF or request a physical copy of the book here. The post Ankur Kothari Q&A: Customer Engagement Book Interview appeared first on MoEngage.

June 13, 20256 min readAir-Conditioning Can Surprisingly Help the Power Grid during Extreme HeatSwitching on air-conditioning during extreme heat doesn’t have to make us feel guilty—it can actually boost power grid reliability and help bring more renewable energy onlineBy Johanna Mathieu & The Conversation US Imagedepotpro/Getty ImagesThe following essay is reprinted with permission from The Conversation, an online publication covering the latest research.As summer arrives, people are turning on air conditioners in most of the U.S. But if you’re like me, you always feel a little guilty about that. Past generations managed without air conditioning – do I really need it? And how bad is it to use all this electricity for cooling in a warming world?If I leave my air conditioner off, I get too hot. But if everyone turns on their air conditioner at the same time, electricity demand spikes, which can force power grid operators to activate some of the most expensive, and dirtiest, power plants. Sometimes those spikes can ask too much of the grid and lead to brownouts or blackouts.On supporting science journalismIf you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.Research I recently published with a team of scholars makes me feel a little better, though. We have found that it is possible to coordinate the operation of large numbers of home air-conditioning units, balancing supply and demand on the power grid – and without making people endure high temperatures inside their homes.Studies along these lines, using remote control of air conditioners to support the grid, have for many years explored theoretical possibilities like this. However, few approaches have been demonstrated in practice and never for such a high-value application and at this scale. The system we developed not only demonstrated the ability to balance the grid on timescales of seconds, but also proved it was possible to do so without affecting residents’ comfort.The benefits include increasing the reliability of the power grid, which makes it easier for the grid to accept more renewable energy. Our goal is to turn air conditioners from a challenge for the power grid into an asset, supporting a shift away from fossil fuels toward cleaner energy.Adjustable equipmentMy research focuses on batteries, solar panels and electric equipment – such as electric vehicles, water heaters, air conditioners and heat pumps – that can adjust itself to consume different amounts of energy at different times.Originally, the U.S. electric grid was built to transport electricity from large power plants to customers’ homes and businesses. And originally, power plants were large, centralized operations that burned coal or natural gas, or harvested energy from nuclear reactions. These plants were typically always available and could adjust how much power they generated in response to customer demand, so the grid would be balanced between power coming in from producers and being used by consumers.But the grid has changed. There are more renewable energy sources, from which power isn’t always available – like solar panels at night or wind turbines on calm days. And there are the devices and equipment I study. These newer options, called “distributed energy resources,” generate or store energy near where consumers need it – or adjust how much energy they’re using in real time.One aspect of the grid hasn’t changed, though: There’s not much storage built into the system. So every time you turn on a light, for a moment there’s not enough electricity to supply everything that wants it right then: The grid needs a power producer to generate a little more power. And when you turn off a light, there’s a little too much: A power producer needs to ramp down.The way power plants know what real-time power adjustments are needed is by closely monitoring the grid frequency. The goal is to provide electricity at a constant frequency – 60 hertz – at all times. If more power is needed than is being produced, the frequency drops and a power plant boosts output. If there’s too much power being produced, the frequency rises and a power plant slows production a little. These actions, a process called “frequency regulation,” happen in a matter of seconds to keep the grid balanced.This output flexibility, primarily from power plants, is key to keeping the lights on for everyone.Finding new optionsI’m interested in how distributed energy resources can improve flexibility in the grid. They can release more energy, or consume less, to respond to the changing supply or demand, and help balance the grid, ensuring the frequency remains near 60 hertz.Some people fear that doing so might be invasive, giving someone outside your home the ability to control your battery or air conditioner. Therefore, we wanted to see if we could help balance the grid with frequency regulation using home air-conditioning units rather than power plants – without affecting how residents use their appliances or how comfortable they are in their homes.From 2019 to 2023, my group at the University of Michigan tried this approach, in collaboration with researchers at Pecan Street Inc., Los Alamos National Laboratory and the University of California, Berkeley, with funding from the U.S. Department of Energy Advanced Research Projects Agency-Energy.We recruited 100 homeowners in Austin, Texas, to do a real-world test of our system. All the homes had whole-house forced-air cooling systems, which we connected to custom control boards and sensors the owners allowed us to install in their homes. This equipment let us send instructions to the air-conditioning units based on the frequency of the grid.Before I explain how the system worked, I first need to explain how thermostats work. When people set thermostats, they pick a temperature, and the thermostat switches the air-conditioning compressor on and off to maintain the air temperature within a small range around that set point. If the temperature is set at 68 degrees, the thermostat turns the AC on when the temperature is, say, 70, and turns it off when it’s cooled down to, say, 66.Every few seconds, our system slightly changed the timing of air-conditioning compressor switching for some of the 100 air conditioners, causing the units’ aggregate power consumption to change. In this way, our small group of home air conditioners reacted to grid changes the way a power plant would – using more or less energy to balance the grid and keep the frequency near 60 hertz.Moreover, our system was designed to keep home temperatures within the same small temperature range around the set point.Testing the approachWe ran our system in four tests, each lasting one hour. We found two encouraging results.First, the air conditioners were able to provide frequency regulation at least as accurately as a traditional power plant. Therefore, we showed that air conditioners could play a significant role in increasing grid flexibility. But perhaps more importantly – at least in terms of encouraging people to participate in these types of systems – we found that we were able to do so without affecting people’s comfort in their homes.We found that home temperatures did not deviate more than 1.6 Fahrenheit from their set point. Homeowners were allowed to override the controls if they got uncomfortable, but most didn’t. For most tests, we received zero override requests. In the worst case, we received override requests from two of the 100 homes in our test.In practice, this sort of technology could be added to commercially available internet-connected thermostats. In exchange for credits on their energy bills, users could choose to join a service run by the thermostat company, their utility provider or some other third party.Then people could turn on the air conditioning in the summer heat without that pang of guilt, knowing they were helping to make the grid more reliable and more capable of accommodating renewable energy sources – without sacrificing their own comfort in the process.This article was originally published on The Conversation. Read the original article.