If you live in the Bay Area and your January or February 2026 bill shocked you, you’re not alone. When I opened my PG&E bill this January, I genuinely thought there had to be a mistake. It was almost triple what I paid the month prior. We hadn’t bought new appliances or blasted the heat. If anything, we were trying to conserve energy and save money by wearing sweaters and running the heat less.

So how does a bill jump by $150–$300 when it feels like nothing changed?

After getting the bill, my investigative mind jumped into action: I googled, read Reddit threads, articles and found that all the explanations were confusing. None of the jargon (baseline allocations, tiers, time-of-use, rate schedules, etc.) clearly answered the simple question of why my bill jumped so high when my habits didn’t.

So, I called PG&E customer service. They were polite, but the answer was basically "you used more electricity.” That answer wasn’t satisfying to me because the increase in usage didn’t seem big enough to explain the size of the bill.

I went deeper and spoke with experts to answer my burning questions. I had long conversations with people who’ve worked on rate design, energy pricing experts at Berkeley, and those who understand how PG&E’s billing structures are actually built.

In plain English, they said winter bill spikes usually happen because three things stack on top of each other:

• The amount of lower-priced electricity you get each month changes in winter
• The most expensive hours of the day matter more when it’s cold and dark
• Heating pushes you into higher-priced electricity much faster than you expect

Since none of this is obvious to the average person looking at their bill, I decided to share this knowledge and help you better understand where your money is going. I’ll use a typical San Francisco studio as an example to show what’s actually driving the spike.

1. The “Cheap Electricity” Bucket Is Smaller Than You Think

Seasonal baseline allowances are the silent multiplier.

PG&E doesn’t charge the same price for every unit of electricity you use. Each month, you get a certain amount at a lower price. After you pass that amount, the price goes up. These are called “baselines” and they change seasonally.

Let’s use a small San Francisco studio as an example. In the summer, you might use around 200 units of electricity. That often translates to roughly $70–$100 for the electric portion of your bill.

In the winter, that same apartment can jump to 400–500 units because of heating. Let’s say the first 250 units are billed at the lower rate at around $0.35 per unit. Anything above that can cost closer to $0.50–$0.60 per unit.

That means that the first 250 units might cost around $85–$90 but the next 150–250 units could cost $75–$140 more. So, instead of a $90 summer bill, you’re suddenly looking at $200–$280 for the same apartment and habits.

So, your bill doesn’t just go up because you used more. It goes up because the extra electricity costs more than your summer electricity did.

2. The Most Expensive Hours Hit at the Worst Time

Most Bay Area customers are on a Time-of-Use plan. That means electricity costs more during peak hours (4–9 PM). That’s usually when you get home from work, cook dinner, heat up your home, etc. Electricity units at peak hours can cost almost twice as much as off-peak units of electricity.

Imagine the case of a small space heater:

• Runs 3 hours from 5-8 pm
• Uses about 4–5 units per night
• That’s ~120–150 units per month

If most of that happens during peak hours, the space heater alone can add $60–$90 to your bill.

3. Heating Quietly Doubles Small Apartments

A portable space heater can use as much electricity in an evening as your fridge uses in an entire day. Run it for 4–5 hours daily in January and you can easily add 200+ extra units to your monthly usage. Stack that on top of electric stoves, water heaters, working from home, etc. and the costs add up quickly.

That’s why it’s not hard for a summer $90 electric bill to become a $220–$300 winter bill. The way PG&E prices electricity makes winter usage much more expensive than people expect.

A 5-Minute Winter Bill Audit (That Actually Tells You Something)

So how does all of this information actually come together to save you money? Here’s a quick way to sanity-check whether your rate plan is quietly making your prices more expensive.

Log into your PG&E account and pull up your most recent bill.

1. First, find your rate plan. It will usually say something like “Time-of-Use (4–9 PM)” or “E-TOU-C.” If you see the words “Time-of-Use,” that means electricity costs more during certain hours of the day.
2. Next, click into the daily or hourly usage chart. Do you see big spikes in the late afternoon or evening? Did those spikes start right when colder weather hit? If so, you’re likely paying peak pricing for heating which is the most expensive way to use electricity.
3. Now compare total usage from June to now. If winter usage is roughly double, that’s actually pretty normal for electric heat. But if your bill more than doubled, that’s not just usage – that’s pricing structure.

What You Can Actually Change

Here are a few realistic levers you can pull to save money:

1. If you’re on a Time-of-Use plan and most of your electricity happens after 4 PM, you may want to look at whether another rate plan would cost less for your pattern.
2. Lowering your thermostat by even 1–2 degrees can meaningfully reduce heating demand over a month. If you’re in an apartment with whole-home electric heat, sometimes running a small space heater in just the room you’re using can reduce overall draw.

The frustrating reality is that PG&E doesn’t clearly show what you would have paid on a different plan. They don’t show whether your specific lifestyle (working from home, heating at night, etc.) is being penalized. You’re left in the dark.

Why We’re Building Nura

This is exactly the gap we kept running into. People don’t just want to know that their bill went up. They want to know:

• What actually drove it
• Whether their rate plan made it worse
• And what would have been cheaper

That’s what we’re building with Nura. Instead of telling you to “use less,” we analyze your pattern and show you whether you’re overpaying for the life you’re already living. The goal isn’t to obsess over every light switch, but rather to make sure your rate plan isn’t quietly adding $150 to your winter.

If your bill shocked you this January, you can join the Nura beta waitlist here. We’re starting with PG&E customers in the Bay Area.