Free home battery report

Is your home battery doing what you bought it for?

Tell us what you want your battery to do. We read your battery history and tell you, goal by goal, whether it's doing it, what it's costing you when it isn't, and what would fix it. It reads your last 30 days, and goes back 12 months for your demand peaks. Works with Tesla Powerwall.

Read-only. We can't change any setting. Your Tesla access is deleted after 24 hours. We never sell your data.
Demand charge · past 12 months

Your biggest demand peak this year cost you $142: 7.4 kW on Jul 15 at 5:45 PM, while your battery sat at 21%, held back by its 20% backup reserve.

Grid Getter could have held it to 3.1 kW, saving about $83. Your demand charges came to about $684 over the past 12 months.

Demand chargeRoom to improve

Your last 30 days peaked at 4.8 kW on Oct 15 at 5:45 PM, about $39 this month.

4 of your 5 biggest peaks landed between 5 and 7 PM.

Peak-rate costRoom to improve

You sold 212 kWh of solar at 4¢ and bought 164 kWh back at 31¢.

BackupOn track

Your battery carried you through 2 outages totaling 3 hours. You probably never noticed.

Your battery charged from the grid during peak hours 3 times.

Sample report. Yours is built from your own battery's history.
How it works

Four steps, a few minutes

No password, no card, nothing to install.

STEP 01

Pick your goals

Cut your demand charge, cut peak-rate cost, keep backup for outages, or just protect the battery. Pick any that apply. Not sure? Pick "I don't know" and we'll look at your home and suggest.

STEP 02

Get a code by email

Enter your email and we send you a code to sign in. There's no password to make up.

STEP 03

Connect, read-only

Tesla shows you a permission screen for read-only access to your energy data. It doesn't include permission to change any Powerwall setting.

STEP 04

Read your report

We read your last 30 days in detail, and the past 12 months month by month for your demand peaks, then check each goal you picked.

What's in your report

A straight answer for each goal

Every goal gets one of three verdicts: On track, Room to improve, or Can't tell yet. Then the numbers behind it, from your own home.

Demand charge

The peak that cost you most this year

Your biggest peak of the past 12 months, when it hit, and what it cost once we know your demand rate. If your battery sat full or was held back by its reserve, it says so, and shows the lowest peak Grid Getter could have held it to.

Past 12 months

A year of demand peaks, month by month

One mild month can make a battery look fine, so the report reads back 12 months, or to when you installed. You get each month's peak, your demand charges for the year, and the time of day your peaks keep landing.

Peak-rate cost

Solar sold cheap, bought back at peak

How much solar you sent to the grid and at what price, against what you bought back in your expensive hours. If another rate plan would have cost you less, it says so.

Backup

How long you'd last in an outage

The outages your battery carried you through, and about how many hours of your usual evening you'd have if the grid went down now. It flags a low backup reserve or Storm Watch being off.

Things that look wrong

Settings working against you

Like your battery charging from the grid during peak hours, or a mode that ignores your peak hours. You get the dates and times.

Your home

Sun, battery and grid, hour by hour

How much of your home ran on sun and battery, and a chart of every hour of the last 30 days with your peak hours shaded.

Where a goal has room to improve, the report names what would help, like DemandGuard for demand peaks or a Peak Time rule for peak-rate cost. Where it's already on track, it says that too.

Before you connect

What we can see, and what happens to it

Read-only

We can see your energy data. We can't change any Powerwall setting. Tesla's permission screen will confirm it.

Our access is deleted after 24 hours

Automatically. You can also remove Grid Getter yourself in the Tesla app.

Your report and account are deleted after 30 days

Unless you choose to keep them.

We never sell your data

Your email gets your report and the occasional tip. Unsubscribe anytime.

Everything deleted when you say so

One button on your report deletes it all, any time.

We never ask for

Permission to change any Powerwall setting, your vehicles or their location, or your Tesla profile or payment details. We never see your Tesla password.

How to remove our access yourself

In the Tesla app, open Security & Privacy, then Third-party apps. Tap Grid Getter, then Remove access.

After the automatic 30-day expiry your email stays on our tips list until you unsubscribe. If you delete everything yourself, your email is removed too. The privacy policy has the details.

After your report

Keep it, or let it go

You don't have to decide anything to read your report.

If you like what you see

Keep your account

Choose Keep my account and Grid Getter can start running your goals for you. If your report points to a paid plan, you get it free for 30 days. Cancel before the trial ends and you pay nothing.

Automations change settings, so Tesla asks you to approve full permission at this step. Until you do, Grid Getter can't change anything.

If you don't

Do nothing, and it deletes itself

Our access ends after 24 hours. Your report and account are deleted after 30 days. Or hit Delete everything now on your report and it's gone right away.

Common questions

About the report

Is the report really free?

Yes. You don't need a card and you don't have to buy anything to see it. If you decide to keep Grid Getter afterwards, a paid plan starts with a 30-day free trial.

How far back does the report look?

Every goal is checked against your last 30 days. For demand charges the report also reads back over the past 12 months, month by month, to find your biggest peak and what your demand charges came to for the year. If your system is less than a year old, it looks back to when you installed it.

Can Grid Getter change anything on my battery?

No. The report asks Tesla for read-only access to your energy data. It can't change any setting, and Tesla's permission screen shows you exactly what you're approving. Grid Getter only asks to change settings if you keep your account and want automations.

What does it read?

Your energy history, your site info (like your rate plan and backup reserve) and your backup history. It never asks for your vehicles, your Tesla profile or your payment details, and we never see your Tesla password.

Do I need a password?

No. You give us your email and we email you a code to sign in. That's it.

How long do you keep my data?

Our Tesla access is deleted 24 hours after you connect. Your report and account are deleted after 30 days, unless you keep them. After that automatic expiry your email stays on our tips list until you unsubscribe. We never sell your data.

Can I delete it sooner?

Yes. Your report has a Delete everything now button. It deletes your report, your account and our Tesla access right away, and removes your email from our list too. You can also remove Grid Getter yourself in the Tesla app: open Security & Privacy, then Third-party apps, tap Grid Getter, then Remove access.

What if my battery is already doing fine?

Then the report says On track. Not every home has something to fix, and we'd rather tell you that than make up a problem.

What if I don't know what I want it to do?

Pick I don't know. We look at your home and suggest goals, and the report says why we picked each one, for example because your plan has a demand charge or you had outages.

What if Tesla doesn't have my rate plan?

Search for it by ZIP code and pick it from the list. We fill in the rates, peak windows and demand charges from a public database covering 3,700+ US utilities. Your rate plan is how we put dollars on your goals. You can skip it, but then the cost goals say Can't tell yet. If you have a demand charge and we don't know the rate, the report asks what you pay per kW. Not sure you have one? Check by ZIP code.

Which home batteries does it work with?

It works with Tesla Powerwall. Sign in with the Tesla account your Powerwall is registered to. There's nothing to install.

What happens if I keep my account?

Running automations means changing settings, so Tesla asks you to approve full permission first. If your report points to a paid plan, you get it free for 30 days. Cancel before the trial ends and you pay nothing. If only your backup or battery protection goals need work, the free plan covers it.

Free, read-only, deleted automatically

See what your home battery is really doing

Pick your goals, connect read-only, and get your answer in a few minutes. If it's already on track, the report will tell you.