New startup ideas · Physical world · Climate and energy
startup idea
Ampyard
A subscription that bids your home battery into wholesale power markets, in any country.
Consumers pay a flat monthly fee for software that takes control of whatever battery, heat pump, EV charger or hybrid inverter they already own and trades that flexibility in the local wholesale and balancing markets, keeping the earnings for the household.
- Software subscription
- Consumer
- $100B+ market
- Creates a new category
- Global from day one
3/5
venture judge
4
similar startups, last 2 years (33 all-time)
96%
of 4 nearest real companies still alive
yes
8 matching federal grants and programs
Direction supported by government programs and grants
Test it before you build it
$800 · 3 weeks · 30 prospects
For $800 and three weeks, prove that Texas home battery owners will pay $19 a month plus a $49 deposit for wholesale market earnings, when free VPP credits already exist.
Riskiest assumption · A US homeowner who already owns a battery will pay $19 a month plus a $49 deposit for market earnings of a few hundred dollars a year, even though utilities and retailers hand out VPP credits for free.
1Focus group: who and where
A Texas homeowner in ERCOT territory with a paid-off Enphase, SolarEdge or FranklinWH battery of 10 kWh or more, outside Tesla's ecosystem, who watched August real-time prices spike while their battery sat full and earned nothing.
where to find 30 · The r/solar subreddit and the DIY Solar Power Forum where ERCOT battery owners post payback math, the Enphase Community forum's storage threads, city building-permit portals in Austin and San Antonio that list residential battery installations by address, and Texas installers found through the EnergySage directory as a referral channel.
2Sell first, build later
Founding membership in a 50-home Texas cohort: Ampyard software takes over the battery you already own, bids it into ERCOT real-time and ancillary markets, and pays earnings to your bank account monthly - live within 90 days of cohort start, by December 1, 2026.
the ask · $19 per month flat; the household keeps 100 percent of market earnings; $49 refundable deposit to reserve a cohort slot.
a real yes · A real yes is a $49 card charge that settles with a confirmed battery brand and model attached; upvotes, 'sign me up' comments and requests for a free beta are not yes.
3Small experiments
The first one attacks the riskiest assumption; each ends with a number that says whether to run the next.
1. Left-money-on-the-table statement
$100 · 10 days
Recruit 20 ERCOT battery owners from r/solar, the DIY Solar Power Forum and Enphase Community by offering a free personalized earnings report. Using each owner's battery size and last month's ERCOT real-time prices, send a one-page statement of what their battery would have earned trading, then pitch the $19 per month founding subscription with a $49 refundable deposit on a 20-minute call.
keep going if · 6 of 20 owners take the call and 4 of those 6 pay the $49 deposit
2. Priced page with card-in reservation
$450 · 14 days
Run $400 of Meta ads targeted to Texas homeowners interested in solar and home batteries, pointing at a one-page site stating the $19 monthly price, a projected $25-45 monthly payout for a 10 kWh battery, and a $49 refundable reservation checkout with a required field for battery brand and model.
keep going if · 5 or more deposits from 500 visitors, each confirming a real battery brand and model
3. Installer referral test
$250 · 12 days
Call 12 Texas solar installers from the EnergySage directory and the permit records and offer $50 per converted deposit if they email the founding offer to past battery customers. Count who actually sends and what converts.
keep going if · 3 of 12 installers send the email and it produces 5 or more deposits
4Collect a deposit up front
Tesla took $1,000 refundable reservations for the Model 3 and $100 for the Cybertruck before building either: the deposit is the measurement, not the revenue.
$49
per prospect, refundable
how · A $49 refundable reservation taken at checkout on the priced page, chosen because a card-in waitlist is the only credible commitment a consumer can make before the control firmware exists; the homeowner confirms battery brand, model and ZIP code at checkout. set up: Stripe Checkout ↗
what it reserves · One of 50 places in the Texas founding cohort, the $19 monthly price locked for two years, and integration priority for their inverter brand.
refund · Refunded to the card automatically if the battery is not live and earning within 90 days of cohort start, and on request any time before activation.
target · 15 deposits across all three experiments within 21 days
before taking money · Selling wholesale market participation to Texas households falls under PUCT and ERCOT aggregation rules, so take only refundable reservations and do not control anyone's battery or move settlement money before registration and counsel.
Go: build it if
15 or more $49 deposits from roughly 30 owner conversations and 500 page visitors, with at least 8 from confirmed non-Tesla battery owners: build the first inverter integration.
Kill: stop if
Fewer than 6 deposits after all three experiments, or the calls show most owners expect this free as part of an electricity plan: stop, it is a vitamin the utility will bundle.
5 Scripts to run itoutreach message, landing copy, deposit terms · click to open
outreach message
You have a battery in your garage that sits full most evenings while ERCOT real-time prices spike past $100 per MWh. I am building software that bids batteries like yours into the market and pays the earnings straight to your bank account - you keep 100 percent, I charge $19 a month. I will send you a free one-page statement of what your battery would have earned in August; can we take 20 minutes this week to walk through it?
landing page
Your home battery can earn its keep in the Texas market $19 a month, you keep 100 percent of earnings; a $49 refundable deposit reserves a founding slot at that price for two years Reserve your slot - 50 Texas homes, live within 90 days
deposit terms
Your $49 deposit reserves one of 50 places in the Texas founding cohort and locks the $19 monthly price for two years. If your battery is not live and earning within 90 days of cohort start, we refund the $49 to your card automatically, and you can cancel for a full refund any time before activation. The subscription starts only when your battery starts earning.
Would you run this test?
One tap. The yes-share feeds the Demand pillar of this idea's score; nobody sees who answered.
Budgets are out-of-pocket estimates for a team of one to three, US market. Size the deposit to the deal, and check the terms before taking money in a regulated line.
Scorecard
One score that balances how trendy the idea is, the demand for it and its potential for 100x, with competition measured relative to every other idea in the catalog. Recent startup trends first, government priorities second.
67
Idea Score, 0-100 · raw 41.7 x 1.61
Active
competition: more crowded than 47% of ideas · headwind x0.76
+2.7
government priorities, secondary (16 matching grants)
Trend
30
Is the wave forming now? 2025-26 entrants vs 2023-24, rounds since 2025, the sector's live-batch direction, the 2026 trend analyst.
- Entrants 2025-26 vs 2023-24 (similar companies)23
- Rounds announced 2025+ in the sector47
- Sector direction (live batch)50
- 2026 trend analyst0
Demand
67
Does anyone want it? YC's current RFS, companies already paid for something similar, the operator judge, founders' yes-rate in decks, readers who would run the test.
- YC asks for it (current RFS: idea / sector)100
- Someone already pays (similar companies, recent / all-time)100
- Operator judge: real pain0
100x potential
66
Can it return a fund? The venture judge (double weight), market-size and moat axes, neighbours still alive, the technologist judge.
- Venture judge50
- Market size axis100
- Moat axis100
- Neighbours still alive71
- Technologist judge25
Score = 100 x cbrt(Trend x Demand x 100x) x (1 - 0.5 x crowding) + government bonus (max 5), calibrated so the 95th-percentile idea scores 90 (order never changes). A geometric mean: a weak pillar cannot be papered over. Percentiles are among the 272 ideas in the catalog; the terms matched were subscription, bids, home, battery, wholesale, power, consumers, pay.
The idea in full
- What
- Consumers pay a flat monthly fee for software that takes control of whatever battery, heat pump, EV charger or hybrid inverter they already own and trades that flexibility in the local wholesale and balancing markets, keeping the earnings for the household. Ampyard writes and certifies the control firmware layer for each major inverter family, holds the aggregator prequalification and market collateral itself, and settles payouts to the customer's bank account. The heavy part is not the box in the garage but the per-market certification, telemetry fleet and collateral the company carries before any household earns anything.
- Why now
- The radar's most recent cohort is explicitly building the hardware side of this: Voxel Energy (yc W26) on solar plus repurposed batteries and NODI Energy (yc X25) on distributed energy infrastructure, while WattShift (techstars TS 2026) is assembling utility rate and price signal data. Meanwhile the consumer-side attempts in the graveyard, Pelm (2022, Plaid for utilities) and Leafpress (2023, AI energy management), died as data plumbing with no market revenue attached, and no pitch phrase in this cluster repeats across four or more recent companies, so the household-as-market-participant framing is unclaimed.
- Wedge: first customer and entry point
- Start with owners of one inverter brand in one market with a real imbalance price, sign them self-serve through installer forums, and prove a single number: euros per battery per month after fees.
- Path to 100x
- Residential electricity and flexible load is a $100B+ annual spend globally, and a fleet that clears more megawatt hours forecasts better, posts collateral more cheaply and wins better market prequalification, so the second entrant in each country earns less per battery than the first. If Ampyard becomes the default trading layer across three inverter families worldwide, it defines a category, household flexibility as a traded asset, in which winner-takes-most per market.
- Ceiling
- Per-household earnings settle at a few hundred dollars a year, so ARPU stays under $10 a month and utilities bundle the same service free with a tariff.
- Closest real companies, as the generator saw them
- Voxel Energy and NODI Energy build and own generation and storage assets; Ampyard owns no hardware and monetizes only the control and market access layer on batteries the consumer already bought. Pelm and Leafpress read household energy data without ever holding a market position.
- Main risk
- Inverter makers close their local control APIs and ship their own trading app, cutting the fleet off overnight.
Five judges
Each judge scores every idea in the catalog with a named rubric; the venture judge decides whether a card is shown at all (4-5 is venture-grade).
Venture investor
3/5
$100B+ flexible load and per-market prequalification advantage, but sub-$10 monthly ARPU and inverter makers closing local APIs cap the upside.
Bootstrapper
1/5
Per-market aggregator prequalification and market collateral must be carried before any household earns, on sub-$10 ARPU.
Operator
1/5
Sub $10 monthly ARPU on a household benefit utilities bundle free is a vitamin, and inverter makers control the API.
Technologist
2/5
The whole product sits on inverter local control APIs that Fronius or SolarEdge can close in a firmware release.
Risk
1/5
The whole fleet lives on inverter makers' local control APIs, which the card admits can be closed overnight, across per-market prequalification the company funds first.
trends
1/5
Home battery aggregation existed in 2023 via Tesla and EU aggregators; its why-now cites dead companies Pelm and Leafpress, which is history, not a shift.
Similar startups in the directory
Companies whose pitch matches most of the idea's terms (subscription, bids, home, battery, wholesale, power, consumers, pay): 33 all-time, 4 from the last two years. Same matching as Idea Check.
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First all-in-one home energy trading platform, enabled by seamless lego-like power system
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We let customers "Buy Now Pay Later" on any store in Europe.
The generator's reference companies
Real companies the model named as closest when it wrote the card, with their fate. A check mark is a company the radar could verify in its directory.
Public money in this direction
US federal grants, SBIR/STTR awards and open opportunities from the radar's public-money feed, matched to the idea's terms; the sector totals give the context.
8
grants and programs matching the idea
203
startup-relevant grants in Climate and energy
$167M
awarded in the sector, tracked
13
opportunities open now in the sector
- Daily Burn Active Together: A personalized, dyadic exercise and health program for people living with dementia and their family care partnersawardhigh relevance
NIH / NIA · SBIR phase I · $500K · posted 2026-09-17
- Brain-based hearing enhancement: a wearable, noninvasive patch to enhance speech communication and expand treatment access for the hearing impairedawardhigh relevance
NIH / NIA · SBIR phase I · $308K · posted 2026-09-17
- Development and assessment of a powered prosthetic digit system with novel wrist-based control and integrated sensory feedbackawardhigh relevance
NIH / NINDS · STTR phase II · $500K · posted 2026-09-01
- I-Corps: Translation Potential of an Artificial Intelligence (AI)-Powered Materials Characterization Platform for Automated Microscopy and Spectroscopy Analyticsawardhigh relevance
National Science Foundation · I-Corps · $50K · posted 2026-08-19
National Science Foundation · I-Corps · $50K · posted 2026-08-10
- Development of a Novel Pediatric LVAD for Home Discharge of Children Awaiting Heart Transplantawardhigh relevance
NIH / NHLBI · SBIR phase II · $1M · posted 2026-08-10
- I-Corps: Translation potential of an Artificial Intelligence-driven electricity market optimization platformawardhigh relevance
National Science Foundation · I-Corps · $50K · posted 2026-07-17
National Science Foundation · SBIR Phase I · $305K · posted 2026-06-23
Market signal
What the radar sees in Climate and energy: new companies by cohort year, the forming YC batch, and outcomes since the February snapshot.
Climate and energy · 99 → 115 → 200 → 90 → 45 new companies 2022 → 2026 · 89% aliveYC F26 live: 1 in this cluster, 1% of the batch (was 1% in S26)Since February, of 118 YC companies here: 1 acquired, 2 shut down, 9 rewrote their pitch
Design attributes
The card is one cell of a designed set: every axis below was chosen before the text was written, and the text had to realize it.
- Buyer
- Consumer
- Business model
- Software subscription
- Path to 100x
- Creates a new category
- Market size
- $100B+ market
- Capital intensity
- Capital-heavy (hardware, bio, infra)
- Speed to revenue
- R&D first, revenue after 3 years
- Technical depth
- Real engineering
- Go-to-market
- Self-serve
- Moat
- Network effects
- Geography
- Global from day one
- Regulation
- Some regulation
- Vibe
- Hot space
Listed under
An idea sits in its own sector and in any sector its text clearly touches.
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