TVA Energy Data vs PJM Now
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
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.
- 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
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | TVA Energy Data | PJM Now |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 3.6 (26 ratings) |
| Positive reviews | 100.0% of reviews — better | 22.2% of reviews |
| Number of ratings | 3 | 26 — better |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 26 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Tennessee Valley Authority | PJM Interconnection |
Customer experience
TVA Energy Data
PJM Now
In-app purchases
TVA Energy Data
No in-app purchases
PJM Now
No in-app purchases






