Comparison

TVA Energy Data vs PJM Now

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TVA Energy Data

Access near real-time and historical energy usage data, demand information, and power system alerts. This app requires authorized access and is designed for TVA's directly served customers needing on-the-go information.

Highlights
  • Near real-time energy data
  • Current day interval data
  • Month-to-date usage and demand
  • Historical energy and demand
  • Power system alerts
  • TVA key contacts
Features
Read full description

Download the TVA Energy Data mobile app for an easy-to-use resource providing information to TVA’s directly served customers who need ready access to information away from their desktop computers. Authorized access is required. Information available: • Near real-time and current day interval data • Month-to-date energy usage and demand • Historical monthly energy and demand • Power system alerts • TVA key contacts

About

PJM Now

Monitor electricity usage, grid status, and wholesale power prices in real-time for the PJM Interconnection region. Get alerts for price changes and grid conditions, and view power flow and fuel mix.

Highlights
  • Real-time electricity use tracking
  • Wholesale power price monitoring
  • Interactive map of prices by location
  • PJM grid condition alerts
  • Power flow visualization
  • Current fuel mix display
Features
Read full description

Track electricity use, power grid conditions and wholesale power prices in real time throughout the region PJM Interconnection serves with the simple and easy-to-use PJM Now app. • See wholesale power prices and trends broken down by location on an interactive map • Receive alerts when wholesale power prices in your area reach the level of your choosing • Receive alerts about PJM grid conditions for your chosen area • Track real-time electricity use and compare it to the day’s forecasted use • See how power flows in and out of the region PJM serves • See the current fuel mix PJM Interconnection, founded in 1927, ensures the reliability of the high-voltage electric power system serving 65 million people in all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia. PJM coordinates and directs the operation of the region’s transmission grid, which includes over 84,042 miles of transmission lines; administers a competitive wholesale electricity market; and plans regional transmission expansion improvements to maintain grid reliability and relieve congestion. Visit PJM at www.pjm.com.

Screenshots

TVA Energy Data3 screens
PJM Now4 screens

Verdict

The call

The clearest difference is review sentiment: TVA Energy Data at 100% against PJM Now's 22%. TVA Energy Data also leads on rating (5.0 vs 3.6) and iOS requirement (13.0 vs 15.1). PJM Now's advantage is ratings volume (26 vs 3) and update cadence (every 3 months vs every 6 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

TVA Energy Data holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: PJM Now has 26 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of TVA Energy Data's written reviews are positive against 22% of PJM Now's.

UpkeepUpdate frequency

TVA Energy Data ships an update every 6 months, PJM Now every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
TVA Energy Data versus PJM Now: the parameters behind the verdict, then further details
ParameterTVA Energy DataPJM Now
PriceFreeFree
Rating5.0 (3 ratings) — better3.6 (26 ratings)
Positive reviews100.0% of reviews — better22.2% of reviews
Number of ratings326 — better
Update frequencyEvery 6 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size26 MB38 MB
Age rating4+4+
DeveloperTennessee Valley AuthorityPJM Interconnection

Customer experience

TVA Energy Data

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PJM Now

All ratings26 ratings
Positive65.4%
Neutral0.0%
Negative34.6%
Written reviews9 reviews
Positive22.2%
Neutral0.0%
Negative77.8%

In-app purchases

None

TVA Energy Data

No in-app purchases

None

PJM Now

No in-app purchases

Questions

Is TVA Energy Data free?
TVA Energy Data is free to download, with no in-app purchases.
Is PJM Now free?
PJM Now is free to download, with no in-app purchases.
Which has better reviews, TVA Energy Data or PJM Now?
TVA Energy Data is rated higher. TVA Energy Data averages 5.0 out of 5 from 3 ratings, while PJM Now averages 3.6 from 26 ratings.
Do TVA Energy Data or PJM Now have ads?
Neither TVA Energy Data nor PJM Now shows ads.
Which is updated more often, TVA Energy Data or PJM Now?
TVA Energy Data ships an update every 6 months, and PJM Now every 3 months. Most recently, TVA Energy Data was updated on November 1, 2026 and PJM Now on November 6, 2026.

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