Nest Renew is Google's program to match your energy use with renewable power

Nest Renew is a service from Google that works with compatible Nest thermostats to shift when your home uses electricity toward times when renewable energy — wind and solar — is more available on the grid. You don't generate your own power. Instead, the system learns your heating and cooling patterns, then adjusts your thermostat slightly during peak renewable hours to use more power then, and uses less during times when the grid relies more on fossil fuels.

The service is optional and free to use if you own a compatible Nest thermostat. Google does not charge a subscription. The program is available in parts of the United States where Google has partnered with local utilities to access real-time data about grid energy sources.

Key Takeaways

  • Nest Renew shifts your heating and cooling to times when renewable energy is more available on your local grid, without requiring you to install solar panels or other equipment.
  • The service is free and works only with newer Nest Learning Thermostat and Nest Thermostat models that have the feature built in.
  • You control how much the thermostat can adjust your comfort — you can set it to prioritize comfort over renewable energy use, or allow larger shifts.
  • Nest Renew is only available in certain regions where Google has partnerships with utilities to access grid data.
  • The program does not reduce your total energy bill, but it does reduce the carbon footprint of the electricity your home uses.

How Nest Renew actually shifts your energy use

When Nest Renew is turned on, the thermostat watches the grid in your area in real time. If wind or solar power is abundant at a particular hour, the system may cool your home a bit more than usual during that window, or heat it slightly higher. The idea is that your home's thermal mass — the walls, furniture, and air inside — will hold that temperature for hours afterward, so you need less heating or cooling during times when the grid is running on coal or natural gas.

You set a comfort band: the range of temperatures you will tolerate. If you set it to 68–72 degrees, the thermostat will stay within that range but may shift toward 72 during renewable-heavy hours and toward 68 during fossil-fuel-heavy hours. You can also choose a "comfort first" mode that makes only tiny adjustments, or an "eco" mode that allows larger swings.

Google's servers receive anonymized data from your thermostat about your home's heating and cooling needs, combined with grid data from your utility. The system learns your patterns over time and predicts when you will need heat or cooling, then times those adjustments to match renewable availability.

Which thermostats support Nest Renew

Nest Renew works only with the Nest Learning Thermostat (3rd generation and newer) and the Nest Thermostat (the newer, simpler model released in 2020). Older Nest models and other smart thermostats do not support the feature.

You can check whether your thermostat is compatible by opening the Google Home app, tapping your thermostat, and looking for a "Nest Renew" or "Energy" section in the settings. If the option appears, your device supports it. If you have an older Nest thermostat, you would need to replace it to use Nest Renew.

Where Nest Renew is available

Nest Renew requires a partnership between Google and your local utility company. The utility must share real-time data about the energy sources powering the grid — what percentage is coming from wind, solar, natural gas, coal, and other sources at any given moment.

As of now, Nest Renew is available in parts of California, Texas, and a handful of other states. Google's website lists the specific utilities and regions where the service works. If your utility is not listed, you cannot use Nest Renew even if you own a compatible thermostat, because Google does not have access to your grid's energy data.

What Nest Renew does not do

Nest Renew does not reduce your total electricity bill. It does not lower the amount of energy your home uses overall — it only shifts when you use it. If your utility charges the same rate all day, Nest Renew will not save you money on your bill.

It also does not generate electricity. You are not installing solar panels, wind turbines, or batteries. Nest Renew is purely a scheduling tool that works with the existing grid.

The carbon reduction from Nest Renew is usually small — typically a few percent of your heating and cooling emissions, not your total home energy use. The actual impact depends on how much renewable energy your grid has available and how much the thermostat can shift your usage without making you uncomfortable.

How to turn on Nest Renew if it is available to you

Open the Google Home app and select your Nest thermostat. Tap the settings icon (gear symbol), then look for "Energy" or "Nest Renew." Toggle the feature on. You will see options to choose your comfort mode — "comfort first," "balanced," or "eco." Select the level of adjustment you are willing to accept.

Once enabled, Nest Renew runs automatically. You can check your impact in the Energy tab of the Google Home app, which shows a summary of how much renewable energy your adjustments helped use. You can turn the feature off at any time from the same menu.

Privacy and data with Nest Renew

Nest Renew sends information about your heating and cooling patterns to Google's servers, where it is combined with grid data to make scheduling decisions. Google says this data is anonymized and not used for advertising or shared with third parties.

Your thermostat also communicates with your local utility through Google's systems. The utility sees only aggregate data across all Nest Renew users in your area, not your individual usage patterns. If you turn off Nest Renew, Google stops collecting this data from your thermostat.

Frequently Asked Questions

Will Nest Renew make my home uncomfortable?

That depends on the comfort mode you choose. "Comfort first" mode makes only small adjustments and should feel invisible. "Eco" mode allows larger temperature swings but stays within the range you set. You control the trade-off between comfort and carbon reduction.

Does Nest Renew work if I am not home?

Yes. Nest Renew adjusts your thermostat based on grid conditions regardless of whether anyone is home. If you use the "away" mode in Google Home, your thermostat will still participate in Nest Renew, but within the temperature range you set for that mode.

Can I use Nest Renew with a heat pump?

Yes. Nest Renew works with any compatible Nest thermostat, including those controlling heat pumps, furnaces, and air conditioning systems. The scheduling logic is the same regardless of your heating or cooling equipment.

What happens if my utility is not in the Nest Renew program?

You cannot use Nest Renew without a utility partnership. Google does not have access to your grid's real-time energy data, so the system cannot make scheduling decisions. You can check Google's website to see if your utility has joined the program.

Does Nest Renew save money on my electric bill?

Not directly. Nest Renew shifts when you use electricity but does not reduce total usage. If your utility charges the same rate all day and all night, your bill will not change. Some utilities offer time-of-use rates where off-peak hours cost less, and Nest Renew could help you use more power during those cheaper windows.