Bylined articles from our editorial team where the work spans multiple contributors. Individual contributors are credited inline.
US virtual power plants enrolled 38 GW in 2025 and the DOE wants 80 to 160 GW by 2030. With gas turbines backlogged past 2028, transformers on five-year lead times and Northern Virginia interconnection queues running seven years, aggregated distributed capacity is the only resource that can be built on the timescale AI data centre demand is actually arriving.
MNRE issued operational guidelines on 30 July 2026 for the ₹4,950 crore DISCOM incentive component of PM Surya Ghar, paying utilities 5 to 10 percent of benchmark cost for rooftop capacity above their baseline. With 40.07 lakh installations done against a one crore target, the bottleneck was never demand — it was the utility desk that approves net meters.
True whole-home backup needs 20–40 kWh of storage, enough continuous output to start motors, and load management — typically $22,000–$40,000 installed. Here's the panel strategy, why partial-loads setups win for most households, and how to tell which you actually need.
Solar EPC contractors in India outgrow their first CRM within 12 to 18 months. This is a functional comparison of Odoo, Zoho One and OctaBees against what a growing solar business actually needs — milestone billing under GST, BOQ-to-PO procurement, multi-site inventory, subcontractor control and O&M — plus how to pick an implementation partner.
New York solar runs $2.80–$3.40 per watt in 2026. Two things changed this year: the 30% federal credit expired, and NY-Sun's standard-income Megawatt Block closed in Con Edison and Upstate. What's left — the 25% state credit, tax exemptions, and income-qualified incentives.
A 13.5 kWh battery runs essential loads for 12–24 hours, most of a home for 6–10 hours, or about 3 hours with central air conditioning running. Runtime tables for ten appliance mixes, the wattage numbers behind them, and the two mistakes that wreck every estimate.
Home batteries cost $10,000–$16,000 installed for a single 10–13.5 kWh unit in 2026, or roughly $960–$1,220 per kWh. The 30% federal 25D credit expired December 31, 2025. How to size a system, what partial versus whole-home backup really means, and when the numbers work.
Vehicle-to-home backup is real in 2026 but narrow: it needs a compatible vehicle, a bidirectional charger costing several thousand dollars, and a transfer switch. V2G revenue remains mostly pilot-stage. Here is which cars and hardware work, what it costs, and when a home battery is the better buy.
A buyer's framework for Level 2 home chargers in 2026: which specs actually matter (amperage, connector, cable length, NEMA rating, load management), which are marketing, and how the NACS transition and utility rebate eligibility should shape the decision.
Most homeowners told they need a $4,000 service upgrade for an EV charger do not. This walkthrough shows the NEC load calculation your electrician runs, three worked examples on 100 A, 150 A and 200 A services, and the load-management devices that avoid the upgrade entirely.
Commercial charging economics changed on June 30, 2026, when the 30C credit worth up to $100,000 per port expired. This analysis covers real Level 2 and DC fast station costs, demand charges, realistic utilization and revenue, and what payback looks like without federal support.
With the federal 30C credit expired June 30, 2026, state and utility rebates are the only money left on home charger installs. This roundup covers what remains — utility rebates of $250–$1,500, state programs, TOU rate credits — and how to stack them without losing eligibility.
Renters and condo owners face the hardest charging problem in America. This playbook covers right-to-charge laws, how to approach an HOA board, who pays for what, load-sharing systems that avoid service upgrades, and the workarounds that actually function when the building says no.
Tesla's Wall Connector installs for $1,100–$2,200 all-in in 2026. The Universal Wall Connector adds a built-in J1772 adapter for about $170 more — worth it for two-car households. Amperage options, when the Mobile Connector is enough, and how NACS changes the buying decision.
India installed about 26 GW of solar and 2.9 GW of wind in H1 2026, lifting total renewable capacity to 288.58 GW by June 30. Solar now stands at 162 GW and solar plus wind at 219 GW — 92.8% of the non-hydro renewable fleet. Gujarat and Rajasthan hold nearly 45% of it.
India's operational battery storage capacity jumped from 0.78 GWh to 8.5 GWh in twelve months, with 7.9 GWh commissioned in H1 2026 alone, per IESA. The tender pipeline has hit 281 GWh, tariffs have fallen 86% since 2022, and IESA sees 888 GWh needed by 2035-36.
Home charging costs 5–6 cents per mile at the US average residential rate of 18.8¢/kWh — about $694 a year for 13,500 miles versus roughly $2,154 in gasoline. Public DC fast charging runs two to three times home cost. Full state-by-state and per-charge math.
A complete Level 2 install walkthrough: circuit sizing under the NEC 80% rule, wire gauge by amperage and distance, when a load calculation forces a panel upgrade, permit costs by city type, and the hardwired-versus-plug-in decision. With a worked 48 A example.
Level 2 EV charger installation runs $749–$2,500 installed in 2026, with a national median near $1,700. Simple garage jobs land under $700; panel upgrades push past $4,000. The 30% federal credit expired June 30, 2026 — here's what changes and what utility rebates remain.
MNRE's July 18, 2026 order exempts net-metering and open-access solar projects from the ALMM List-II domestic cell mandate until December 31, 2026. From January 1, 2027, all such projects must use Indian-made cells. A July 6 revision also lifted ALMM List-I module capacity past 204 GW.
Residential rooftop solar in India pays back in roughly 3.5–6 years after the PM Surya Ghar subsidy (₹78,000 max), and commercial systems in 3–5 years with 40% accelerated depreciation — an effective 15–25% return over 25 years. Real 2026 payback by system size, state and financing.
On-grid solar is the cheapest for most Indian homes (~₹50,000/kW, ₹78,000 PM Surya Ghar subsidy, no battery) but goes dark in a power cut. Off-grid runs without the grid but costs 2–3x more and gets no subsidy. Hybrid adds battery backup and keeps the solar subsidy. This guide shows how to choose.
Net metering in India lets rooftop solar owners export surplus power to the grid and offset future bills. Under the Electricity (Rights of Consumers) Rules, net metering is allowed up to 500 kW or sanctioned load, whichever is lower; larger systems use net billing or gross metering. A draft 2026 amendment proposes mandatory storage above 500 kW, while PM Surya Ghar has stripped out fees and separate agreements for small homes.
India's first national floating solar assessment, released in June 2026, maps 102 GW of floating PV potential across the country's reservoirs, lifting India's total assessed solar potential to 3,445 GW. With MNRE drafting a dedicated scheme and flagship projects like NTPC Ramagundam's 100 MW and Omkareshwar in Madhya Pradesh, floating solar is moving from pilot to mainstream as a way to spread renewable capacity beyond Rajasthan and Gujarat.
SECI and state DISCOMs cleared 4.2 GW of standalone battery energy storage capacity in the January–March 2026 window, with the lowest discovered tariff falling to ₹2.18/kWh — a 14% drop versus Q4 2025.
TOPCon will dominate module shipments through 2027, but HJT's per-watt manufacturing cost gap has closed faster than analysts forecast in 2025. Here is the data — and why developers in India should keep a 12-month watching brief on HJT before committing to TOPCon-only pipelines.
The EU's Carbon Border Adjustment Mechanism enters its definitive phase in 2026 with an expanded scope that now touches polysilicon, ingots, and select inverter components. Chinese and Indian exporters face new embedded-emissions reporting obligations that will reshape EU module sourcing through 2028.