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Sunnyside

Should you go battery-only, or battery + solar?

Backup batteries give homeowners a powerful new way to avoid blackouts and save on energy.

· May 31, 2026 · 8 min read
Solar & BatteryView all
· Oct 1, 2026 · 5 min read

The solar tax credit is gone. Here’s how homeowners are going solar anyway

The federal tax credit that helped homeowners pay for solar ended on December 31, 2025. Here are the five main ways homeowners pay now, and what to check before choosing one.

· Aug 20, 2026 · 3 min read

When Texas set an all-time power record, batteries came to the rescue

Texas set an all-time electricity demand record this summer, and its battery fleet kept the grid online without a single conservation call.

· Jun 9, 2026 · 5 min read

Home batteries explained

In just a few years' time, home batteries have gone from curiosity to common sense. Here's everything you need to know about how they work and why they matter.

Rate lookupAdvertisement · Daylight
Your state
Your monthly electric bill
$756more a year
A $200 bill today was $137 in 2021, for the same power.
Illinois average home electricity rate, per kWh
13.2¢
15.7¢
15.7¢
15.9¢
17.7¢
19.2¢
202120222023202420252026 so far
Source: U.S. Energy Information Administration. 2026 is January through July.
Flat for 25 yearsYour Daylight rate is locked at signing.¹
¹Rate locked with our 0% annual increase plan. Other plans are available. Currently available in Massachusetts and Illinois.
The GridView all
· Oct 1, 2026 · 4 min read

Utilities asked for $18.6 billion in rate increases in six months. Here’s why

Investor-owned utilities asked state regulators for $18.6 billion in rate increases in the first half of 2026. Here’s what homeowners need to know.

· Aug 13, 2026 · 7 min read

What the biggest utility merger in US history means for your power bill

NextEra Energy announced plans to buy Dominion Energy in a $67 billion deal. Here’s what homeowners everywhere should know.

· Aug 1, 2026 · 3 min read

Massachusetts electric rates jumped on August 1. Here’s why

Eversource, National Grid, and Unitil raised basic service supply rates as much as 16.4% on August 1.

Battery sizerAdvertisement · Daylight
What do you want to keep running?
Add EV charging7.2 kW. Usually paused during an outage.
How long do you need backup?
Estimated backup
30–45hours
How we estimate: the appliances you picked run the whole time, except the heat pump, sump pump and EV charger, which we count at about a third of the time. We base it on the battery setups we install and treat 85% of each battery as usable.
Illustrative estimate. Actual backup time varies.
Mother NatureView all
· Oct 1, 2026 · 4 min read

Nor’easter recap: 200,000 without power

A late-September nor’easter knocked out power across the Northeast, with restoration taking nearly three days in some areas. Learn why some outages last longer than others, and what a home battery can cover while you wait.

· Aug 20, 2026 · 6 min read

A brief history of El Niño

One hundred years ago, El Niño was a story fishermen told about strange, warm waters that arrived around Christmas. Today it is one of the best-tracked patterns in climate science, and this winter's event is on pace to be the strongest ever measured.

· Jul 10, 2026 · 3 min read

What a potentially record-setting El Niño could mean for your region

NOAA just said El Niño is strengthening faster than expected, on track to rival the biggest events on record.