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lower your electric bill with solar panels

How To Lower Your Electric Bill With Solar Panels

By How Do Solar Panels Lower Your Electric Bill?, The Pros and Cons of Rooftop Solar in 2026 No Comments

There are a zillion articles and videos promising “expert tips” for how to lower your electric bill. Spoiler alert: 99% of them focus solely on reducing consumption and have no actionable advice for lowering your rate.

We’re here to shake things up a bit.

We’re all for conserving electricity, but usage is only half of the equation for electricity bills and it can only realistically be reduced so far. In fact, if you are experiencing high electricity bills, it’s far more effective to reduce your rate than to shave your consumption down one kilowatt-hour at a time .

So, in this article, we’re going to skip over turning off lights and unplugging appliances to focus on the meaningful ways to lower your electric bill.

In this article:

Let’s start with a quick investigation of what causes high electricity bills.

What causes high electric bills?

High electricity bills are typically caused by a combination of extreme weather and utility rate hikes. For example, intense or prolonged heat waves cause homeowners to use more electricity for air conditioning. Meanwhile, utility electricity prices increased in 2022 at the highest rate in 40 years.

Each of these forces on their own can cause electricity bills to increase substantially. But when combined – as they have been in the summer of 2023 – they create the perfect storm for high electricity bills.

average annual utility rate changes since 1980

So, what can we do about it?

How to save on your electric bill

There are three ways to save money on your electric bill: Lower your rate, reduce consumption, and conserve electricity. Most articles – and homeowners – tend to focus solely on reducing consumption with things like upgrading to LED lightbulbs, unplugging devices, sealing doors and windows, and fine-tuning the thermostat.

But we find it more effective – and realistic – to focus on lowering your rate. Here are two reasons why.

Why it’s time to focus on lowering your electricity rate

First, electricity consumption isn’t easy to control. Typically 30-50% of household electricity consumption is from heating and cooling, which is largely dependent on the weather and extreme weather events. For example, during the prologned 2023 summer heat wave, Phoenix saw at least 19 consecutive days with temperatures above 110 degrees (the streak is still going as I’m writing this!), forcing residents to keep their ACs humming or risk heat-related illnesses and deaths.

Second, conserving electricity is a wonderful thing, and anything you can do to prevent waste is a win in our book, but having high electricity consumption isn’t necessarily a bad thing, economically and environmentally, if you are using it efficiently and in place of fossil fuels.

The prime example is home electric vehicle (EV) charging. Charging an EV at home is many times cleaner, more convenient, and more cost-effective than fueling a combustion vehicle at a gas station. But it will also make your electricity bill increase substantially.

The same goes for electrifying your stove, water heater, clothes dryer, and heating and cooling systems.

In fact, if the goal is to cut your overall energy costs, then home electrification is the way to go for four reasons:

  1. Electricity is cheaper (and cleaner) than fossil fuels
  2. Electrical systems are far more efficient than combustion systems
  3. There are robust incentives for home electrification upgrades
  4. You can control the price you pay for electricity

The last point is the most important, because unless you have an inside man at OPEC, there is virtually nothing you can do about the price of fossil fuels for your car or home. However, home solar gives you the power to lower your electricity rate.

 

 

Lowering your electricity rate with solar panels

At its core, home solar is a way to buy electricity in bulk. And if we’ve learned anything from Costco, it’s that buying in bulk is a great way to reduce the cost of essential items and save a ton of money over time.

So, what does that look like for electricity? The metric to focus on is Levelized Cost of Electricity (LCOE), which is essentially the price you pay per kilowatt-hour (kWh) of electricity that you use (aka your utility rate). You can find your LCOE by taking your electricity costs and dividing it by your electricity consumption.

For example, let’s say you live in California and you paid $1,765 for 6,504 kWh of electricity over the course of a year. That would bring your LCOE to 27.15 cents per kWh.

$1,765 / 6,504 kWh = $0.2715 per kWh

Even easier, just look up your electricity rate on your utility bill. For reference, the national average price of electricity in June 2023 was 17 cents per kWh, according to the US Bureau of Labor Statistics.

Now that you have a score to beat, let’s see how to find the LCOE of a solar system.

What’s the price per kWh of home solar?

The price per kWh of solar varies from system to system depending on the size and scope of the project, how it’s financed, and the incentives available in the area.

For example, a larger system purchased with cash can typically produce electricity at around 6-8 cents per kWh, after the 30% solar tax credit is applied. A smaller, more complex project that’s financed with a loan may produce electricity at closer to 12-14 cents per kWh.

The amazing thing is that homeowners can effectively control their price per kWh by choosing:

  • The size of their system
  • The equipment and installers they choose
  • Which incentives they claim
  • How they finance the project (cash or loan)

The easiest way to find the cost per kWh of home solar is to generate and compare binding quotes from solar.com’s network of vetted installers. However, you can get a ballpark figure by taking the net cost of the system (after incentives) and dividing it by the estimated production over 25 years.

How to calculate the cost per kWh of home solar

Let’s say you buy a 6 kW system for $25,000. Between the 30% tax credit and the interest on a 12-year loan, the net cost of the system comes to $23,000.

Factoring in 5.5 hours of sunshine per day and typical degradation, this 6 kW system can be expected to produce a total of 219,500 kWh of electricity throughout its 25-year warrantied life. That brings the price per kWh – or levelized cost of electricity – to 10.48 cents per kWh.

$23,000 / 219,500 kWh = $0.1048 per kWh

This is 38% lower than the average electricity rate in the US, and a 60% reduction in higher cost states like California, Massachusetts, and Connecticut. You can cut and conserve as much electricity as you’d like, but it’s unrealistic to sustain a 40-60% reduction in an era of electrification and climate change.

 

 

How does solar lower your electricity bill?

Home solar reduces your monthly electric bill in two ways: By offsetting your grid consumption with net metering credits and by reducing your grid consumption altogether (aka “behind the meter” savings). With a properly sized solar system that produces 100% or more of your electricity usage, your electricity costs become the fixed monthly payments on your solar and/or battery equipment, which are much lower than the cost of grid electricity over time.

Net metering: Offset your grid usage

Most residential solar systems use net metering to trade electricity back and forth with the local utility grid. In net metering, homeowners earn credits for the electricity their solar system pushes onto the grid, and use those credits to offset the cost of electricity they pull off the grid at night.

A system sized to produce 100% of a household’s average electricity consumption can effectively reduce the electricity bill completely, aside from certain fixed charges that can’t be offset, and your electricity costs are the predictable monthly payments for your solar system.

Depending on how you finance the system, your solar payments may be higher or lower than your electricity bill at first, as shown in the table below for a household using 750 kWh per month.

Electricity source LCOE Monthly cost (first year)
Grid – National Average 17 cents per kWh $127.50
Grid – High cost states 25 cents per kWh $187.50
Solar – Cash 10.48 cents per kWh $0
Solar – 12-year loan* 10.62 cents per kWh $161.86
Solar – 20-year loan* 12.62 cents per kWh $115.50

*Based on APR rate of 5%. All solar options for 6 kW system with net price of $17,500 after claiming the 30% tax credit.

But the thing about electricity rates is that they keep rising over time. So, even if your solar payment starts out higher than your average electricity bill, it won’t stay that way for long.

chart showing the average monthly payments for solar versus grid electricity

The point is that solar gives you options for lowering your electric bill. You can:

  • Pay cash to get the greatest lifetime savings
  • Take out a 20-year loan to start saving on Day 1
  • Take out a 12-year loan to a steady payment and substantial lifetime savings

It’s worth noting that net metering isn’t offered everywhere, and in some places (namely California) the credit value of excess solar electricity is far less than the price of using grid electricity. In this case, it’s better to reduce your grid consumption as much as possible.

Battery storage: Reduce your grid usage

The second way is by using battery storage to reduce the homeowner’s reliance on the grid altogether to lower their electricity bill. With a properly sized solar and battery system, a household can produce, store, and use all of its own solar electricity.

Batteries are most known for their ability to provide backup power. However, they also perform a function called “load shifting,” which is essentially storing the cheap electricity produced by solar systems to avoid using expensive electricity from the utility grid.

Given the cost, it can be tough to achieve Year 1 electricity bill savings with a solar and battery system. However, under NEM 3.0 solar billing in California, solar and battery typically yield greater savings than solar-only systems.

Solar is key to a lower electric bill

Home solar gives homeowners unprecedented control over their electricity rate, which is crucial to cutting essential electricity costs. Using net metering and/or battery storage, homeowners can replace the cost of buying electricity from their utility with predictable payments for their solar system – leading to substantial energy cost savings over the 25 year life of the system.

High electricity consumption is not necessarily a bad thing, if it’s being used efficiently and in place of fossil fuel systems. With that in mind, focusing solely on cutting consumption (as many articles do) is an unrealistic way to lower an electric bill.

With that said, the most effective way to lower your electric bill is through a combination of installing solar panels, reducing consumption, and conserving electricity.

Connect with an Energy Advisor to see how much you can save with solar.

How to lower your electric bill FAQs

Does unplugging appliances save electricity?

Unplugging certain appliances when they are not in use can save the average household up to $100 per year in electricity costs, according to the US Department of Energy. Standby power or vampire power — the electricity consumed by appliances that are off but still plugged in — accounts for 5-10% of residential electricity use. This can be reduced by uplugging appliances when not in use, using a power strip, or upgrading to energy efficient products with lower standby power usage.

Why is my AC bill so high?

AC bills (aka the electricity consumption associated with air conditioning) get higher during the summer when the units are running more frequently and for longer periods of time. Air conditioning costs can also increase due to heatwaves or if the AC unit is not functioning properly. To decrease your AC costs, have a professional tune up your machine, decrease your usage by setting a higher indoor temperature, or install solar panels to decrease the price you pay for electricity.

Why is my electric bill $500?

The average electricity bill in the United States varies from $85 in Utah to over $245 in Connecticut, so a $500 monthly bill is very high. This is likely due to a combination of increased usage (EV charging, prolonged air conditioning, pool or hot tub heating, etc) and/or a significant electricity rate hike by your utility. There could also be an appliance malfunctioning or left running that is using an abnormal amount of electricity.

what is consumption only battery

What Is a Consumption-Only Battery and Why Is It Being Offered in California?

By How Do Solar Batteries Work?, Solar Battery No Comments

If you’re looking into solar to reduce your electricity costs in California, you may come across a new term that takes a second to digest: consumption-only battery

Consumption-only battery is one term for the new, more affordable generation of solar batteries that provide all the cost savings storing and using your own solar production, but do not have capability to provide backup power during grid outages.

You may also see this referred to as:

  • No-backup batteries
  • Grid-tied batteries
  • Rate Saver batteries (or some version of this)
  • Arbitrage batteries
  • BatteryOne – just one calorie! (Okay, we made this one up)

Regardless of what you call it, a consumption-only battery is crucial to maximizing the savings potential of a home solar system billed under NEM 3.0.

We’re going to divide this article into two sections, both of which answer, “What’s the point of a battery that doesn’t provide backup power?”

Let’s start with the short version, but if at any point you need more details, then it’s time to jump to the long version below!

The quick version: What’s the point of a consumption-only battery?

Simply put, the point of a consumption-only battery is to maximize the savings of a NEM 3.0 solar system without paying for the additional (and rather expensive) backup capabilities of a traditional battery.

But why is battery storage so crucial for savings under NEM 3.0?

The key feature of NEM 3.0 solar billing is a drastic reduction in solar export rates – that’s the value of surplus solar electricity pushed onto the grid. With export rates slashed by 75% on average, it’s much more economical to store and consume your own solar production onsite than to export it to the grid.

That’s where battery storage comes in.

Home batteries have always had the ability to store solar energy produced during the day to use at night – a feature known as load shifting – but before NEM 3.0 billing, this feature was little more than a perk that saved the average household ~$30 a month. So, batteries were primarily associated with backup power instead of energy cost savings.

Under NEM 3.0, load shifting is crucial to bill savings (learn more in the in-depth version), but not every home needs – or wants to pay for – backup capabilities. Battery makers recognized this dilemma and said, “Okay, let’s set the backup components aside and offer just the load shifting.”

The cost of consumption-only versus backup batteries

As it turns out, there’s quite a bit of technology and labor that goes into enabling backup capabilities and removing these from the equation substantially reduces the cost of consumption-only batteries (learn more in the in-depth version).

In our experience so far, consumption-only batteries are being priced around $3,000 to $4,000 lower than their backup counterparts. This significantly reduces the cost barrier to battery technology and reduces the payback period of a NEM 3.0 solar and battery system.

chart showing the difference in backup and non-backup solar batteries

Imagine if your cable TV provider allowed you to reduce the cost of your plan by 25-30% by removing 200 channels that you never watch. That’s pretty close to what’s happening with consumption-only batteries.

Which type of battery is right for me?

Under NEM 3.0 solar billing, the question has shifted from “Do I need a battery?” to “What type of battery do I need?”

But the answer remains the same: It depends on your energy goals.

self consumption battery vs backup battery

  • If you are strictly interested in energy cost savings, then a consumption-only battery is the way to go.
  • If you regularly experience outages (or want to plan ahead), then a backup battery is a better fit.

It’s also worth considering the pros and cons of a consumption-only battery.

Pros Cons
Maximum savings for NEM 3.0 solar system Does not provide backup power
Shorter payback period Adding backup components later is more expensive than during initial installation
Not paying for features you may not use May need to add capacity in order to provide robust backup capabilities later on
Quicker and easier installation
Can add backup components later
Storing and using your own solar production increases grid resiliency

Connect with an Energy Advisor to talk through your battery options and to compare binding quotes for each option.

 

 

The in-depth version: Why are consumption-only batteries being offered in California?

Over the last decade or so, there have been two primary benefits for homeowners to install home battery systems:

  • Backup power for grid outages
  • Self-consumption of surplus clean energy

The backup component is pretty straightforward. Configuring a solar system with a battery allows the system to continue to operate during a power outage, providing uninterrupted power to the home. The battery will power the circuits it’s been configured to, and the panels will recharge the battery.

Historically, the consumption-only aspect of battery systems has been a much less potent motivator. For homeowners whose utility companies offer full 1:1 net metering, where electricity prices are the same at all times of day, using a battery for consumption-only doesn’t provide any additional savings. Some people appreciated the ability to use their own clean surplus power in the evening rather than drawing in dirty power from the grid, but there wasn’t really a financial incentive to do so.

Enter Time-of-Use rates

This paradigm began to shift when CA passed NEM 2.0 rates back in 2016. NEM 2.0 required homeowners to move to a time-of-use (TOU) rate plan when installing solar, which varies the price of electricity throughout the day. Under NEM 2.0, the rate for surplus power that a home solar system generated and sent back to the grid during the middle of the day (an “off-peak” period) became less than the cost of electricity drawn from the grid during the late afternoon & early evening (an “on-peak period”).

As a result, these TOU rates began providing a financial incentive to use the battery for consumption-only for the first time. Rather than exporting surplus power to the grid for lower credit and then being charged higher rates from the utility in the evening, using a battery to store surplus energy during the day and feed that same power into the house in the evening reduces the amount of power the home needs to draw from the grid at those higher peak rates.

how solar batteries save money

In turn, the battery’s self-consumption capability helped reduced the remaining utility charges for the homeowner and yielded higher overall savings for a combined solar & battery system.

The value of this self-consumption capability is highly dependent on the difference in the rates throughout the day. The greater the difference between the rate for surplus power and the peak rate in the evening, the greater value the battery system will provide. Under NEM 2.0, the difference between the off-peak and on-peak rates wasn’t particularly high – maybe 20% or so.

So, even though the battery’s self-consumption capability would generate additional savings, it wasn’t hugely substantial – generally $30/month or so for the average project in CA – which means homeowners were still looking to batteries much more for power backup than for savings.

NEM 3.0 changes the game again

This is where CA’s new NEM 3.0 rates fundamentally change the equation. NEM 3.0 reduced the value of surplus power sent to the grid in the middle of the day by about 75% compared to NEM 2.0 levels.

NEM 2.0 vs 3.0 Export Value

With credits for daily surplus averaging around 7-8 cents per kWh and peak evening rates exceeding 50 cents/kWh, there is now about 80% less benefit to sending surplus energy back to the grid rather than storing it in a battery to use later. This makes each kilowatt-hour saved for self-consumption far more valuable than before, and allows battery systems to generate far higher returns.

Under these conditions, homeowners have begun expressing much more interest in batteries from a savings perspective, even if they don’t need the backup capability that standard battery installations provide.

So as long as you’re installing a battery to maximize your savings through consumption-only, why would you not just have the battery configured for backup as well?

Why not just install a standard backup battery?

The answer to this question is that configuring home batteries for backup requires thousands of dollars in additional costs, for both materials and labor, beyond the battery unit itself. In order for batteries to provide backup power, installation companies need to take on significant additional work, including:

  • Running complex load calculations to determine how many circuits the battery system can accommodate for backup based on the specific demands on each of those circuits;
  • Installing a subpanel that houses those specific circuits that have been determined to be included and running wires & conduit from the main panel;
  • Relocating those designated breakers from the main electrical panel to the subpanel;
  • Installing an automatic transfer switch that will allow the solar & battery system to disconnect from the grid when a power outage is detected to ensure live power isn’t backfed into the power lines;
  • Increased complexity for both the permitting & installation processes

So, by configuring a battery system to only provide consumption-only on a daily basis, installation companies can offer the same amount of battery capacity for consumption-only savings at substantially lower cost – typically $3,000-4,000 – than the same battery system with all the additional work required for power backup.

This kind of consumption-only configuration wasn’t needed when backup power was really the sole reason to install a battery. Now, however, homeowners looking to maximize their bill savings who don’t particularly need backup power can get the same amount of savings that backup-configured systems can provide but at substantially lower cost.

Additionally, if grid reliability worsens over the coming years and homeowners decide they want to use their consumption-only battery for power backup, they have the flexibility to reconfigure that battery for backup down the road.

The bottom line

NEM 3.0 changed the solar landscape in California by reducing the benefits of solar-only systems and increasing the importance of batteries.

Consumption-only batteries are the solar industry’s response to NEM 3.0. By stripping out the backup power components, consumption-only batteries provide all the load shifting benefits of a traditional battery, but at a much lower price point.

Consumption-only batteries are a great option for homeowners that want to maximize their energy cost savings and aren’t frequently impacted by grid outages.

Connect with an Energy Advisor to discuss and compare your battery options.