1/10 Battery storage in the Texas power market very likely to be a poor investment, but over 100,000 MW is now in the interconnection queue. Let's break down this down.⚡️🔋 #energytransition
2/10 It’s always been easy to develop power generation in Texas. Most battery storage projects are targeting a slim ancillary services market with a total of about 5k MW with over 3k MW already in operation. When supply > demand in power markets prices quickly collapse.
3/10 Long-lived assets to avoid saturating their market and collapsing profitability they need deep and durable markets. Yet in ERCOT, there's no capacity market (the deepest market). What's left is the energy market. But can it provide the necessary support? 🏭💡 #EnergyPolicy
4/10 The day ahead energy market is deep and has the potential to absorb the much more battery storage. But the challenge will be profitability. #EnergyEconomics 📉⏳
5/10 ERCOT boasts an impressive and growing array of renewables, which provide low energy prices to charge a battery. But it's not the cost of charging that's the problem - it's the discharge pricing. 🌿💵 #GreenTech
6/10 Discharge prices are influenced by delivered natural gas and carbon prices. In Texas, there's no carbon price, and with one of the cheapest natural gas resources in the country, the profit margin in the day ahead energy will be slim. ⛽️💰 #EnergyFinance
7/10 This narrow spread between charging and discharge price limits profitability. That leaves real-time energy as another potential market. But once again it's a pretty small market. #EnergyMarkets
8/10 Real-time energy markets handle deviations from expected load cleared in the day-ahead market. However, as more batteries join the grid, they will dampen these prices. ⚖️📊 #PowerSystems
9/10 So, will these projects be financed & built when their very existence could disrupt the price signals they're chasing? It's a paradox that will shape the future of our #EnergyLandscape. 🏗️🔄 #SustainableInvestment
10/10 As we continue to navigate the complexities of the #EnergyTransition, it's clear that our infrastructure, markets, and policies need to adapt. I would love to hear other more optimistic points of view. ⚡️🌎 #CleanEnergyFuture
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Today’s energy crisis is not a failure of renewables, but it is a harbinger of things that we need to address to get through the energy transition. As we electrify our economy we will increase, not decrease, our reliance on natural gas capacity to preserve reliability. 1
This does not mean that we will burn more gas, just the opposite. We will burn less gas as more zero marginal cost renewables hit the electric grid. 2
The intermittent characteristics of renewables are well understood. When they are under producing and our energy storage resources are depleted we will need to call on gas, all be it infrequently, to keep the lights on. This has broad implications. 3
Utility scale renewable finance needs to be reimagined. The capital stack for renewable projects has traditionally been tax equity, back leverage/debt, and project equity — supported by two primary ways to create revenue: 1. long term PPA’s and 2. long term hedges.
1/
Most PPA’s result in the sale of as available MWh’s to load like a utility or corporate customer. The key risk is that the projected output is less than the expected output resulting in a proportional decrease in cash flow - usually not a big deal.
2/
Long term hedges are more complicated and I believe that they are going away in the wake of what happened in Texas last week. The key difference between the PPA and the hedge is that the hedge provides for a scheduled quantity (not as available) of power to be delivered.
3/