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Save Energy and Money This Summer With These Eco-Friendly Smart Home Devices

These smart home gadgets can help reduce your water, electric and energy bills this summer.

Molly Price Former Editor
Macy Meyer Editor I
Macy Meyer is a N.C. native who graduated from UNC-Chapel Hill in 2021 with a B.A. in English and Journalism. She currently resides in Charlotte, N.C., where she has been working as an Editor I, covering a variety of topics across CNET's Home and Wellness teams, including home security, fitness and nutrition, smart home tech and more. Prior to her time at CNET, Macy was featured in The News & Observer, The Charlotte Observer, INDY Week, and other state and national publications. In each article, Macy helps readers get the most out of their home and wellness. When Macy isn't writing, she's volunteering, exploring the town or watching sports.
Expertise Macy covers a variety of topics across CNET's Home and Wellness teams, including home security, smart home tech, fitness, nutrition, travel, lifestyle and more. Credentials
  • Macy has been working for CNET for coming on 2 years. Prior to CNET, Macy received a North Carolina College Media Association award in sports writing.
Macy Meyer
7 min read
Coin and light bulb

Small changes can cut your utility costs in a big way.

krisanapong detraphiphat/Getty Images

Whether it's a smart light bulb, a smart thermostat or a water-saving, low-flow smart sprinkler, there are plenty of devices on the market that can help you save money on energy, water and electricity. 

Plus, if you use these devices in addition to turning off lights when you leave the room, setting your thermostat to the ideal temperature, spending less time in the shower and unplugging appliances, you'll start to see real savings on your monthly utility bills this summer and beyond. Here are a few devices we think you should try out. 

Smart thermostats

If this were Family Feud, smart thermostats would be the number one answer on the board when it comes to energy savings -- and for good reason. These connected thermostats manage your HVAC system with several extra features you won't get in an unconnected model.

You can set temperature thresholds appropriate for the season, as well as Home and Away temperatures that adjust automatically based on whether your mobile device is present via location data. If you can only do one thing to make your home smarter and more energy conscious, a thermostat is a great choice.


Not only is this thermostat available at an amazing value, but it's also our favorite smart thermostat of all. The Amazon Smart Thermostat is the least expensive smart thermostat CNET has tested and is still packed with a plethora of perks: touchscreen interface, a sleek design and Energy Star-certified, saving an average of $50 on a yearly energy bill.

And, of course, it works via the Alexa app and with Alexa voice commands. You will need a compatible Alexa-enabled smart speaker or smart display to use voice commands, but you don't have to enable an Alexa skill since this is an Amazon-branded product. Read our full Amazon Smart Thermostat review here.

Tyler Lizenby/CNET

Google Nest is in its third round of smart thermostats. The third-gen Nest Learning Thermostat boasts a larger display, a better resolution and a far-field sensor for viewing time and temperature from farther away than previous models.

This thermostat works with Google Assistant and Alexa for voice commands and smart-home integration. You can also pick up a battery-powered temperature sensor (sold-separately) to pinpoint the climate in your most frequently used rooms.

Read our Nest Learning Thermostat Third Generation review.

Chris Monroe/CNET

Like Google Nest, Ecobee has continued to gradually improve its smart thermostats. The latest, the Ecobee SmartThermostat with Voice Control, includes one temperature sensor.

That price is high, but Ecobee added features like a nicer looking glass finish, support for 5GHz connectivity, better Alexa integration with digital microphones, improved speaker quality and a redesigned temperature sensor. 

This is the thermostat for you if you're a fan of Alexa, because Amazon's smart assistant is built right in.

Read our Ecobee SmartThermostat with Voice Control review.


With or without the smarts, LED bulbs are far more efficient than old-school incandescents. If you want to save big on your electric bill, LED bulbs are a great place to start. If you're ready to jump into smart bulbs, there are plenty of affordable options out there these days. 

Use a schedule to make sure the right lights are on or off during the day. If you don't need a schedule, you can still use Alexa and Google Assistant integrations to turn off that kitchen light you forgot about from your phone or smart speaker from anywhere in your house or where you have an internet connection. 


Yes, the Wyze bulb is the cheapest smart bulb available and yes, it's one of the best smart lights available, too. For just $32, you can purchase a 4-pack and proceed to bask in the glow of dirt-cheap smart light all around your home.

Plus, these bulbs come with a number of excellent features: Amazon Alexa or Google Assistant compatibility, a full spectrum of white-light color temperature settings and unbeatable brightness. Read our Wyze Bulb review

Philips Hue bridges and bulbs still set the standard for reliable, scalable smart lighting. A starter kit with two white bulbs and the required Hue bridge costs $70 (you could also opt for the $100 four-bulb and bridge package). From there, you can add bulbs for as little as $15 each. 

The Hue app allows you to control these bulbs remotely, set schedules, create scenes and more. Read our complete guide to Philips Hue for a deeper dive into this robust collection of smart lights.

Smart plugs 

Like smart lights, smart plugs can automatically turn on and off on a schedule, monitor energy consumption and create scenes. Plug in any gadget or small appliance you'd normally use in a wall outlet, and a smart plug will bring it online. If you're specifically interested in conserving power, not just automation, be sure to select a plug that includes energy monitoring. 

Chris Monroe/CNET

Eufy Smart Plug Mini

Many smart plugs don't offer true energy monitoring. The Eufy Smart Plug Mini brings your daily and monthly reports on energy consumption for whatever device it's powering. There are also scheduling, timing and customization options through a companion app. 

The app is easy to set up, simple to use and comes with every feature you would need to control a gadget or small appliance. You won't need a hub or bridge to get started, just a solid 2.4GHz wireless connection. However, you also won't get the additional side USB charger some plugs offer, and it doesn't work with HomeKit.

This isn't CNET's favorite smart plug, but it has great energy consumption settings. For anyone who can live without energy consumption details, we'd recommend the smaller TP-Link Kasa Smart Wi-Fi Plug Mini.

Read our Eufy Smart Plug Mini review.


This $12 outdoor smart plug by Wyze boasts some excellent features -- especially for the price. Like many smart plugs, the Wyze Plug Outdoor is weather resistant, can easily control your connected devices from anywhere, and incorporates Alexa and Google Assistant functionality. But what separates the Wyze Plug Outdoor from other plugs on the market is its Energy Monitoring feature. 

The Wyze Plug Outdoor monitors the energy used to power the connected devices -- and it will even send you notifications if the consumption exceeds certain levels and will track your historical energy usage in the Wyze app.

Motion sensors

If you already own smart lights or are ready to set up your first bulbs, consider adding a compatible motion sensor. A good motion sensor, like the options below, can turn lights on or off. You'll be able to turn on a hallway or bathroom light when someone walks by at night or turn off all the living room lights when no motion has been detected. 

Tyler Lizenby/CNET

The Philips Hue Motion Sensor works with the Hue line of smart lights via the Hue app for iOS or Android. What's nice about this sensor is that Hue has included a daylight sensor. That means the device can detect when there's still enough daylight to light a space and make sure there aren't lights on unnecessarily.

The motion sensor runs on two AAA batteries and you can pair up to a dozen of them with your Philips Hue Bridge. Mount in a variety of ways, including an option magnet included in the box.

Read our Philips Hue Motion Sensor preview.

Samsung SmartThings

SmartThings Motion Sensor

The SmartThings system isn't for everyone. You'll really need to buy into it to get the full benefits. That means a $70 hub, this $25 motion sensor and any compatible bulbs and devices you'd like to turn on or off.

The motion sensor sits on a ball joint, so you can move it around for the perfect angle. As with the Hue sensor, it can turn lights on or off based on motion or lack thereof. With all SmartThings all the time, you can get a pretty good setup going. The system is also compatible with Google Assistant and Alexa for voice commands.

Smart sprinklers

Spring is coming upon us quickly and that means lawn care is probably back to the top of your to do list. Smart sprinklers are one way to save water when your grass gets thirsty. With connectivity and management apps you can schedule watering and even automatically delay it if rain is in the forecast. If water consumption in your home has gone up now that there are more people there during the day, putting some smarts around your lawn watering is a great way to help minimize usage.


Rachio 3 replaces the controller for your in-ground sprinklers. It's a great way to keep your lawn maintenance on a routine. Rachio watches your local weather, too. If you normally water your lawn on Tuesday mornings, but there is a forecasted thunderstorm this Tuesday, Rachio won't run. That upgrade will keep you from using water when you don't need it. 

Rachio 3 also has a flow meter built in that not only knows exactly how much water your lawn is getting, but will shut down the sprinkler if a leak is detected.

Read our Rachio 3 Smart Sprinkler Controller preview.

Chris Monroe/CNET

This budget smart sprinkler system has an app that will watch the weather and schedule the sprinklers for you. You can also control sprinklers with Alexa voice controls through B-Hyve's Alexa skill. 

Sure, the large dial, big buttons and clunky LCD display might not scream "smart home chic," but for an affordable outdoor device, the Orbit B-Hyve gets the job done well.

Read our Orbit B-hyve review.

Smart home products make our lives easier, more automated and in the case of these devices more energy efficient. Adding just a smart thermostat can make a big difference. Smart lights and plugs are a great way to go, too. No matter how you start your energy-saving smart home, the benefits are sure to add up. 

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