3 smart reasons to connect your water heater to Hilo
Hot water is cozy — but did you know it can account for up to 20% of your electricity use in winter? Now there’s a smart way to take back control: by connecting your electric water heater to Hilo. That way, you’ll still have access to hot water in moderation during peak demand events — without putting your savings at risk.
Two ways to connect your water heater:
- Get the Hilo smart water heater controller (available free of charge1)
- Pair your Calypso water heater controller with the Hilo app
Here are three smart reasons to get started!
1. Maximize your savings
By automating your water heater during peak demand events, Hilo’s smart solution can help you save money — an average of $302 each winter, depending on the size of your water heater!
2. Enjoy more comfort during peak events
No cold showers here. The controller lets you use a moderate amount of hot water during peak demand events — roughly 25 minutes’ worth with a 60-gallon tank3 — without cutting into your energy savings.
3. Optimize your electricity use
With the Hilo app, you can view your electricity consumption in real time4 or the next day, depending on your meter type. You’ll also have access to data on your water heater’s energy use, so you can find ways to lower your electricity bill.
Already have a Sinopé Calypso controller?
Good news! Both the Zigbee and Wi-Fi models of Sinopé’s Calypso water heater controller are compatible with Hilo. Just pair yours with the Hilo app to benefit from automation during peak demand events and maximize your savings. Plus, you’ll receive a cash bonus of up to $1255!
Want to save even more? Add Hilo’s other smart energy solutions — like thermostats or a compatible EV charger — alongside your water heater controller for even greater impact.
Calculate my potential savings
1 With a 12-month commitment to participate in automation during peak demand events. Conditions apply.
2 Average potential savings are based on actual consumption by Hilo customers enrolled in Rate Flex D who participated throughout the entire 2025–2026 season. The averages are based on estimated savings observed under a scenario of 84 hours or 21 peak demand events and attributed to each category of connected devices supported by Hilo (data to be validated in summer 2026). Calculations are based on Rate Flex D prices in effect during that season. Potential savings represent the difference between Rate Flex D and Rate D (the base rate), including applicable taxes. Actual savings may vary depending on the combination of connected devices, home or vehicle characteristics (if applicable), energy use or charging habits, peak event participation rate, and weather conditions.
3 With a water heater setpoint temperature of 60°C, a shower temperature of 40°C, and a flow rate of 10L/min.
4 This feature may not be available, depending on the meter type. Learn more.
5 With a 12-month commitment. The number of connected devices eligible for financial assistance is limited. Conditions apply
