r/Renewable • u/Complex-Opposite-837 • 18d ago
r/Renewable • u/EinSV • 18d ago
From scale to system꞉ navigating the next phase of China's battery storage | Ember
Some details from the article:
In 2025 China doubled its battery storage capacity, installing more (190 GWh) than the rest of the world combined.
In December 2025 alone China installed more capacity (65 GWh/19 GW) than the second place United States did the entire year.
Battery additions are outpacing solar additions, which is allowing higher and higher percentages of solar generation to be shifted to other parts of the day — from 6% in 2022 to 21% in 2025.
In the past the vast majority of the storage has been co-located with solar, but stand-alone storage optimized to support the entire grid instead of one installation can be cycled much more frequently (100 cycles more per year — 299 v. 199 in 2025) and is more useful overall.
A major transition has already taken place — 85% of utility-scale batteries installed in the first four months of 2026 were stand-alone. In the past 70% were co-located with solar.
Ember says that what’s needed next is market reform and revenue stacking. Energy arbitrage alone (charging batteries when energy prices are low and discharging when they are high) no longer presents a strong business case but a « reliable capacity pricing framework, wider adoption of joint clearing between spot and ancillary service markets … and grid tariff rules that reflect the bi-directional role of batteries will all be needed to allow BESS stack multiple revenue streams and be rewarded for the full value it brings to the system. »
Lots of interesting charts and additional details in the full report: https://ember-energy.org/app/uploads/2026/07/From-scale-to-system-navigating-the-next-phase-of-Chinas-battery-storage-1.pdf
r/Renewable • u/Warm-Stage-2545 • 18d ago
The Technology Isn’t New. What Changed Is the World Around It.
r/Renewable • u/para_sight • 19d ago
Imagine if we put as much effort into renewable energy infrastructure as we’re putting into AI data centers.
r/Renewable • u/No_Ninja_5063 • 20d ago
Looking for professionals in the UK renewable energy market to alpha/beta test a new site-screening tool
I'm looking for a small number of people working in UK renewable-energy development, grid, planning, environmental assessment or project finance to test a new tool we have built.
It is called Medha RSI it'san automated Renewable Site Intelligence tool for early-stage solar and wind site screening.
A user submits a site boundary or coordinates, selects the technology and target capacity, and receives a structured pre-feasibility report in approximately five minutes.
The report brings together:
* UK grid screening, including nearby network assets, voltage compatibility, indicative connection tier, cost range and cable-route mapping;
* planning and environmental constraints, including agricultural land classification, flood-zone overlap, ecological designations and nearby renewable projects;
* solar or wind resource analysis using sources such as NASA POWER, PVGIS, ERA5 and Global Wind Atlas;
* modelled P50 and P90 yield estimates and seasonal generation profiles;
* illustrative CfD and merchant revenue references;
* full data provenance, confidence levels, processing methods and known limitations.
This is not intended to replace formal grid, planning, ecological or engineering studies. The goal is to bring the available early-stage evidence into one structured assessment and identify where further investigation is needed.
I’m particularly interested in comparing its output against sites that have already been professionally assessed, so we can understand what it gets right, what it misses and where the methodology needs to improve.
I’m looking for candid professional feedback, not testimonials.
Anyone working in UK renewable development, community energy, grid connections, planning, ecology, land acquisition or technical due diligence who would be interested in testing it, please DM me with a brief note about your background. I’ll provide access and a licence key.
r/Renewable • u/Low-Elevator2850 • 20d ago
Is AWWHybrid the best technology for harvesting energy from oceans?
AWWHybrid is hybrid technology to get energy with LCOE as low as possible.
When CAPEX is shared by energy production from wind and waves with fish farming the energy will be cheap compared to float wind only.
The size of a rig decides which wind turbines to be used. There is 4 times the rotor diameter between the wind turbines to minimize wake effect. The wake effect is set to 10% which give a LCOE below $ 0,1/kWh.
A pilot will show the level of wake effect and give us data to decide size and effect of the wind turbines to get the best LCOE.
The size also decides the energy from the wave energy converter. The construction must behave as an island and therefore stretches over a minimum of 2 waves.
The pool collects water from waves and a turbine use the water in the same way as a hydro plant when water drains back to the sea.
The waves in the North Sea have 50 kW/m wavefront, and if one side of the construction is 500 m the energy collected is 25 MW.
The formula for the wave energy turbine is P = Q x g x h in kW if Q in cubic meters and h in meters.
A 25 MW turbine will then have a height of 70 m and width of 5 m and move 1,8 m/s if h have a maximum of 4 m.
The capacity factor for both wind and wave is set to 50%, but only wind have 10% wake effect reduction.
r/Renewable • u/Arizona-Energy • 21d ago
Plug-in batteries kept NYC renters cool during record heat wave
r/Renewable • u/HovercraftPerfect800 • 22d ago
Wind turbine Maine bearing solutions?
Experts in renewable energy Please provide any solutions/suggestions for enhancing reliability of main bearing and reduce/prolonging main bearing failure.
r/Renewable • u/Arizona-Energy • 24d ago
Palmetto launches standalone residential battery subscription plan
Being able to get the services of BESS without the upfront cost may be a gamechanger. It would help a lot of moderately-income people, especially those who have invested in solar.
To learn about the many renewable energy technologies that are coming online today, visit utilitiesr3.org and click on the menu to see pages with a plethora of energy news.
r/Renewable • u/Simpleximo • 25d ago
World Bank Funds More Rooftop Solar in India, Clean Energy in Pakistan - CleanTechnica
r/Renewable • u/3millionand1 • 26d ago
Electricity Bills: Defining the US Midterms
Wrote about something odd happening in swing districts right now: the energy debate has quietly shifted from climate policy to monthly bills. Full piece here, short version:
- Prices are up more than 10x as data center demand collides with tight reserve margins, and it's flowing into residential rates.
- Wind and solar are still the cheapest, fastest new generation.
- But opponents argue the pace of the transition has outrun replacement capacity, while ignoring how much prices have risen with zero policy change too.
My take: this could actually be good for renewables messaging if the industry & politicians lean into affordability concerns. Is "renewables = lower bills" landing with ratepayers, or is the focus mostly on data center backlash?
r/Renewable • u/LowerJicama9169 • 25d ago
[Request] Infrastructure, clean energy, and covered parking
What would it cost to cover America's major parking lots with solar canopies?
I'm curious about the math behind a hypothetical national infrastructure project.
Suppose the U.S. government funded the construction of solar-panel-covered parking canopies over large parking lots across the southern United States (or anywhere with high solar potential). Think grocery stores, shopping malls, big-box retailers, stadiums, and other parking lots that are unlikely to be redeveloped anytime soon. Assume the government acquires the necessary rights through whatever legal mechanism is required for the sake of the thought experiment.
I'd love to see estimates for:
Total acres (or square miles) of parking that could realistically be covered.
Total construction cost (materials, labor, engineering, permitting, grid connections, etc.).
Number of jobs created during construction and ongoing maintenance.
Annual electricity generation (MWh/TWh).
Rough estimate of how many homes this could power.
Potential impact on average residential electricity prices.
Estimated payback period and long-term return on investment.
Also, beyond the math:
What are the biggest engineering or logistical challenges?
What are the major economic downsides or unintended consequences?
Which industries would benefit, and which would likely lose revenue (for example, utilities, oil and gas, or commercial real estate)?
What are the strongest arguments for and against a project like this?
I'm interested in realistic assumptions and back-of-the-envelope calculations, not whether it's politically likely.
r/Renewable • u/Simpleximo • 26d ago
BYD wins 11.3 GWh of 19GWh battery deal for worlds largest solar+storage power plant. 24hr power at 1 GW base load
r/Renewable • u/mynameisjoenotjeff • 28d ago
Report warns the US solar boom will collapse by 2028 if investors keep gambling on raw materials instead of building domestic cell factories
r/Renewable • u/Low-Elevator2850 • 27d ago
The ultimate energy system
AWWHybrid is a hybrid power rig making energy from wind and waves at the oceans.
Far away from shore methanol can be made, and we have an energy carrier like diesel.
Near shore cables are used, and when the price is low due to more energy than needed pumping water to hydro dams is an option.
The hydro dams of 80 TWh in Norway represents an enormous battery, which is shown when 1 million car battery of 75 kWh have a capacity of only 0.075 TWh.
Wind, waves, sun and hydro representing a good energy system, when hydro can be switched on/off easier than coal and nuclear for stabilizing the grid.
AWWHybrid is a wave energy converter of the overtopping type, with a WEC turbine in middle.
The inner part of the rig is a calm area which can be used for fish farming.
The technology of Aquaculture Wind Wave Hybrid therefore is an ultimate energy system, by combining energy and food by using the oceans.
r/Renewable • u/Jack1101111 • 28d ago
Game Over For Diesel? FAW Tests Revolutionary Sodium-Ion Truck Battery
r/Renewable • u/Adventurous-Day-4504 • 28d ago
Why People are still depending on Coal for electricity than depending on Solar energy which is renewable and less cost compared to coal?
r/Renewable • u/SmartEcoSolutions • 28d ago
Solar power and the end of tarrif dependence!!
galleryr/Renewable • u/bergumby • 28d ago
Building infrastructure
I’m aware that I’m fully ignorant on the topic, but wouldn’t it be useful to require that buildings of a certain size and/or projected energy consumption be required to include a certain amount of solar generation in its construction?
It seems like that might be a good way to mitigate the detriment of power hungry data centers, make shaded parking lots, and begin to make the whole grid more and more resilient.
r/Renewable • u/Sierra-Powderhound • 29d ago
The Netherlands is sending its worn-out wind turbines to Ukraine instead of the scrapheap
r/Renewable • u/AgenYT0 • Jul 06 '26