Ed Porter
@edporter.bsky.social
All things energy transition and batteries.
Occasional host on the Transmission podcast.
Longer reads on LI, video on YouTube and both on Modo Energy’s terminal.
Occasional host on the Transmission podcast.
Longer reads on LI, video on YouTube and both on Modo Energy’s terminal.
Good snippet on co-location - a key trend over the next few years, to squeeze the most from existing networks
December 4, 2025 at 11:16 AM
Good snippet on co-location - a key trend over the next few years, to squeeze the most from existing networks
Series B complete for Modo Energy
Much more to come in enabling the transition
Much more to come in enabling the transition
December 4, 2025 at 11:01 AM
Series B complete for Modo Energy
Much more to come in enabling the transition
Much more to come in enabling the transition
When providing flexibility in GB power markets, how does the cost of batteries compare with gas?
Source: modoenergy.com/research/bat...
Source: modoenergy.com/research/bat...
November 26, 2025 at 4:05 PM
When providing flexibility in GB power markets, how does the cost of batteries compare with gas?
Source: modoenergy.com/research/bat...
Source: modoenergy.com/research/bat...
Today's Transmission episode is all about bringing down the cost of bills, link below
November 18, 2025 at 6:15 PM
Today's Transmission episode is all about bringing down the cost of bills, link below
How did a UK solar and battery system perform in October?
Nearly all of that battery export is during peak load.
☀️ Solar 🤝 battery 🔋
Nearly all of that battery export is during peak load.
☀️ Solar 🤝 battery 🔋
November 2, 2025 at 12:00 PM
How did a UK solar and battery system perform in October?
Nearly all of that battery export is during peak load.
☀️ Solar 🤝 battery 🔋
Nearly all of that battery export is during peak load.
☀️ Solar 🤝 battery 🔋
For years, French nuclear was seen as a steady, unchanging source of baseload power.
But as renewables expand and prices move more sharply through the day, nuclear flexibility has become part of France’s daily power balance.
How much further can the fleet flex?
But as renewables expand and prices move more sharply through the day, nuclear flexibility has become part of France’s daily power balance.
How much further can the fleet flex?
October 23, 2025 at 6:29 PM
For years, French nuclear was seen as a steady, unchanging source of baseload power.
But as renewables expand and prices move more sharply through the day, nuclear flexibility has become part of France’s daily power balance.
How much further can the fleet flex?
But as renewables expand and prices move more sharply through the day, nuclear flexibility has become part of France’s daily power balance.
How much further can the fleet flex?
October 22, 2025 at 10:35 AM
When the system operator needs to buy energy to balance the grid close to delivery, how does the price of batteries compare with gas?
Here’s the comparison for GB in September 2025.
Average battery accepted offers were £33/MWh cheaper than gas, reducing costs for consumers.
Here’s the comparison for GB in September 2025.
Average battery accepted offers were £33/MWh cheaper than gas, reducing costs for consumers.
October 22, 2025 at 9:47 AM
When the system operator needs to buy energy to balance the grid close to delivery, how does the price of batteries compare with gas?
Here’s the comparison for GB in September 2025.
Average battery accepted offers were £33/MWh cheaper than gas, reducing costs for consumers.
Here’s the comparison for GB in September 2025.
Average battery accepted offers were £33/MWh cheaper than gas, reducing costs for consumers.
Total rated power of batteries in Great Britain has reached 6.3 GW and 10GWh.
October 21, 2025 at 3:44 PM
Total rated power of batteries in Great Britain has reached 6.3 GW and 10GWh.
How has Tesla performed as an optimiser in the GB battery storage market?
Great to see back in the ft.
Great to see back in the ft.
October 20, 2025 at 8:17 AM
How has Tesla performed as an optimiser in the GB battery storage market?
Great to see back in the ft.
Great to see back in the ft.
Here are the interconnection timelines in California by technology…
Interesting to see how the investment theory changes and how surges in applications push out timelines
Interesting to see how the investment theory changes and how surges in applications push out timelines
October 16, 2025 at 6:51 PM
Here are the interconnection timelines in California by technology…
Interesting to see how the investment theory changes and how surges in applications push out timelines
Interesting to see how the investment theory changes and how surges in applications push out timelines
How do batteries in the most advanced battery storage geographies make returns?
Once frequency response markets are saturated, they move into the next best market, often energy trading.
Their impact at peak is usually at the expense of thermal plant which will see reduced run hours.
Once frequency response markets are saturated, they move into the next best market, often energy trading.
Their impact at peak is usually at the expense of thermal plant which will see reduced run hours.
October 13, 2025 at 2:10 PM
How do batteries in the most advanced battery storage geographies make returns?
Once frequency response markets are saturated, they move into the next best market, often energy trading.
Their impact at peak is usually at the expense of thermal plant which will see reduced run hours.
Once frequency response markets are saturated, they move into the next best market, often energy trading.
Their impact at peak is usually at the expense of thermal plant which will see reduced run hours.
Pretty cool to see Modo Energy data highlighting the growth of battery storage and storage’s expanding role from supporting frequency to energy balancing, reserve and future voltage support.
October 13, 2025 at 6:53 AM
Pretty cool to see Modo Energy data highlighting the growth of battery storage and storage’s expanding role from supporting frequency to energy balancing, reserve and future voltage support.
Had a blast speaking at Everything Electric on the future of resilient grids hosted by the excellent @bobbyllew.bsky.social
Key topics:
🔋 how quickly the battery fleet has grown (now 6.5GW/10GWh) to dominate short term flexibility, for example, in frequency response markets and at lower cost.
Key topics:
🔋 how quickly the battery fleet has grown (now 6.5GW/10GWh) to dominate short term flexibility, for example, in frequency response markets and at lower cost.
October 11, 2025 at 3:24 PM
Had a blast speaking at Everything Electric on the future of resilient grids hosted by the excellent @bobbyllew.bsky.social
Key topics:
🔋 how quickly the battery fleet has grown (now 6.5GW/10GWh) to dominate short term flexibility, for example, in frequency response markets and at lower cost.
Key topics:
🔋 how quickly the battery fleet has grown (now 6.5GW/10GWh) to dominate short term flexibility, for example, in frequency response markets and at lower cost.
How does liquidity pick up in Intraday markets, looking at Germany?
Slide from the recent German Livestream - which you can get here.
www.youtube.com/watch?v=drhd...
Slide from the recent German Livestream - which you can get here.
www.youtube.com/watch?v=drhd...
October 10, 2025 at 9:56 AM
How does liquidity pick up in Intraday markets, looking at Germany?
Slide from the recent German Livestream - which you can get here.
www.youtube.com/watch?v=drhd...
Slide from the recent German Livestream - which you can get here.
www.youtube.com/watch?v=drhd...
Very clear demonstration of cannibalisation of frequency response revenues as batteries push out any legacy technology from these markets.
October 10, 2025 at 9:38 AM
Very clear demonstration of cannibalisation of frequency response revenues as batteries push out any legacy technology from these markets.
If you'd like to understand how batteries could work alongside gas and hydro in Spain, check out the latest Modo Energy livestream on BESS in Spain.
www.youtube.com/watch?v=g0nR...
www.youtube.com/watch?v=g0nR...
October 9, 2025 at 6:40 PM
If you'd like to understand how batteries could work alongside gas and hydro in Spain, check out the latest Modo Energy livestream on BESS in Spain.
www.youtube.com/watch?v=g0nR...
www.youtube.com/watch?v=g0nR...
Fun sawtooth trading in 15-min day ahead market in Germany
I don’t expect it to stay as trading patterns evolve and generators pick up additional 15-min blocks or buy back lower end of period volume.
Source: modoenergy.com/research/ger...
I don’t expect it to stay as trading patterns evolve and generators pick up additional 15-min blocks or buy back lower end of period volume.
Source: modoenergy.com/research/ger...
October 2, 2025 at 9:40 AM
Fun sawtooth trading in 15-min day ahead market in Germany
I don’t expect it to stay as trading patterns evolve and generators pick up additional 15-min blocks or buy back lower end of period volume.
Source: modoenergy.com/research/ger...
I don’t expect it to stay as trading patterns evolve and generators pick up additional 15-min blocks or buy back lower end of period volume.
Source: modoenergy.com/research/ger...
What does Spain’s battery storage buildout look like?
By 2029, the country could host up to 5 GW of installed battery capacity.
By 2029, the country could host up to 5 GW of installed battery capacity.
September 30, 2025 at 9:35 AM
What does Spain’s battery storage buildout look like?
By 2029, the country could host up to 5 GW of installed battery capacity.
By 2029, the country could host up to 5 GW of installed battery capacity.
Germany’s intraday market is the deepest and most volatile in Europe. More than a million trades clear daily, with 96 delivery windows open and prices swinging within minutes.
For batteries, this is where speed and flexibility deliver exceptional returns.
Chart from the Weekly Dispatch
For batteries, this is where speed and flexibility deliver exceptional returns.
Chart from the Weekly Dispatch
September 26, 2025 at 9:29 AM
Germany’s intraday market is the deepest and most volatile in Europe. More than a million trades clear daily, with 96 delivery windows open and prices swinging within minutes.
For batteries, this is where speed and flexibility deliver exceptional returns.
Chart from the Weekly Dispatch
For batteries, this is where speed and flexibility deliver exceptional returns.
Chart from the Weekly Dispatch
A timely reminder of the growth in battery storage and how it is now competing at longer durations.
Check out the full episode to hear how groups like Field are bringing these battery projects to life.
Full source: youtu.be/v-1E24Uf2-4?...
Check out the full episode to hear how groups like Field are bringing these battery projects to life.
Full source: youtu.be/v-1E24Uf2-4?...
September 25, 2025 at 9:44 AM
A timely reminder of the growth in battery storage and how it is now competing at longer durations.
Check out the full episode to hear how groups like Field are bringing these battery projects to life.
Full source: youtu.be/v-1E24Uf2-4?...
Check out the full episode to hear how groups like Field are bringing these battery projects to life.
Full source: youtu.be/v-1E24Uf2-4?...
Which storage technologies have passed through to the next round of Ofgem’s Long Duration “Cap and Floor” auction?
Hard to see anything other than variants of lithium dominating at 8 hours.
Source: modoenergy.com/research/gb-...
Hard to see anything other than variants of lithium dominating at 8 hours.
Source: modoenergy.com/research/gb-...
September 24, 2025 at 10:20 PM
Which storage technologies have passed through to the next round of Ofgem’s Long Duration “Cap and Floor” auction?
Hard to see anything other than variants of lithium dominating at 8 hours.
Source: modoenergy.com/research/gb-...
Hard to see anything other than variants of lithium dominating at 8 hours.
Source: modoenergy.com/research/gb-...
In Great Britain, battery availability is high.
95% of batteries are available in any half-hour.
For more details, you'd need to be signed up to the Weekly Dispatch.
95% of batteries are available in any half-hour.
For more details, you'd need to be signed up to the Weekly Dispatch.
September 19, 2025 at 10:55 AM
In Great Britain, battery availability is high.
95% of batteries are available in any half-hour.
For more details, you'd need to be signed up to the Weekly Dispatch.
95% of batteries are available in any half-hour.
For more details, you'd need to be signed up to the Weekly Dispatch.
What will low-carbon energy systems cost? And how does that compare to today?
Key to this is whether areas are sun or wind-dominated and the associated balancing required.
@etc-energy.bsky.social
Here's the full episode here: youtu.be/X7ti6w6_0sg?...
Key to this is whether areas are sun or wind-dominated and the associated balancing required.
@etc-energy.bsky.social
Here's the full episode here: youtu.be/X7ti6w6_0sg?...
September 18, 2025 at 11:09 AM
What will low-carbon energy systems cost? And how does that compare to today?
Key to this is whether areas are sun or wind-dominated and the associated balancing required.
@etc-energy.bsky.social
Here's the full episode here: youtu.be/X7ti6w6_0sg?...
Key to this is whether areas are sun or wind-dominated and the associated balancing required.
@etc-energy.bsky.social
Here's the full episode here: youtu.be/X7ti6w6_0sg?...
Italy’s upcoming MACSE auction concentrates 10 GWh of storage procurement in the south and islands.
Why focus there?
- High renewable penetration
- Weak interconnection
- Acute flexibility needs
By targeting capacity where stress is highest, this ensures storage delivers the greatest impact.
Why focus there?
- High renewable penetration
- Weak interconnection
- Acute flexibility needs
By targeting capacity where stress is highest, this ensures storage delivers the greatest impact.
September 17, 2025 at 12:41 PM
Italy’s upcoming MACSE auction concentrates 10 GWh of storage procurement in the south and islands.
Why focus there?
- High renewable penetration
- Weak interconnection
- Acute flexibility needs
By targeting capacity where stress is highest, this ensures storage delivers the greatest impact.
Why focus there?
- High renewable penetration
- Weak interconnection
- Acute flexibility needs
By targeting capacity where stress is highest, this ensures storage delivers the greatest impact.