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🇵🇾 Solar Calculator Paraguay

Enter your ANDE bill in guaraní and department — get solar system size, Itaipu hydro economics explained, Chaco off-grid diesel replacement savings, and payback period. Note: grid payback is 15–20yr due to cheap hydro; Chaco off-grid pays back in 2–5yr.

Your electricity details
₲PYG
Solar system results — Paraguay
5 kWp system — 1460 kWh/kWp/yr
Est. monthly kWh400 kWh/mo
Annual solar production7.300 kWh/yr
Effective rate used₲ 500/kWh (ANDE grid)
Annual benefit (savings)₲ 2.007.500/yr
Net meteringNone — ANDE self-consumption only
System cost range₲ 35.000.000 – ₲ 50.000.000
Total installed cost (midpoint)₲ 42.500.000
Payback period21.2 years
25-year net savings₲ 7.687.500
Long payback due to cheap hydro: Paraguay's ANDE electricity is among the world's cheapest (~₲ 350–700/kWh) thanks to Itaipu, the world's second largest hydropower dam. Grid-connected solar payback of 15–20 years is normal here. Solar makes stronger economic sense as backup power, for off-grid Chaco properties, or where grid connection costs are high.
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How to Use This Calculator

Enter your monthly bill and department

Enter your average monthly electricity bill in Paraguayan guaraní (₲/PYG) from ANDE (Administración Nacional de Electricidad). Paraguay has among the world's cheapest grid electricity — approximately PYG 350–700/kWh (~$0.05–0.10/kWh) in tiered residential tariffs — because the country produces an enormous surplus from the Itaipu hydroelectric dam on the Paraná River, which Paraguay co-owns with Brazil. Select your department — Filadelfia in the Paraguayan Chaco (5.5 PSH) is the sunniest area; Encarnación (4.8 PSH) in southern Paraguay receives slightly less due to subtropical humidity.

Off-grid vs. grid-connected context

Paraguay presents a unique solar paradox: the country has excellent sunshine (5.0–5.5 PSH) but extremely cheap hydro electricity, making grid-connected solar payback unusually long — typically 15–20 years. However, for off-grid properties in the vast Paraguayan Chaco, solar makes exceptional economic sense as it replaces expensive diesel generation. For urban and peri-urban properties, solar provides value primarily as backup power and energy independence rather than pure bill savings. No formal residential net metering scheme exists under ANDE as of 2026.

ANDE and the Itaipu effect

Itaipu Binacional on the Paraná River has a installed capacity of 14,000 MW — far exceeding Paraguay's domestic demand of ~3,000 MW. Paraguay sells its surplus power share to Brazil at bulk prices, generating government revenue. This abundance means ANDE can supply electricity at very low residential tariffs, creating challenging economics for grid-connected solar. The calculus changes entirely for: off-grid rural properties, backup power systems, properties with high grid connection costs, and for those valuing energy independence.

The Formula

Monthly kWh = Monthly Bill ÷ ₲ 500/kWh (blended ANDE residential rate) Annual production = kWp × PSH × 365 × 0.80 efficiency Grid-connected: self-consumption × 55% (no net metering) Off-grid: 95% production utilized (replaces diesel at ₲ 2,500/kWh) Annual benefit = utilized kWh × effective rate System cost = kWp × ₲ 7,000,000–10,000,000 (~$950–1,360/kWp) Grid payback = 15–20 years (cheap ANDE hydro) Off-grid payback = 4–8 years (diesel replacement)

Paraguay's legal framework for distributed generation is still developing as of 2026. A draft net metering law has been discussed in the Paraguayan Congress but not enacted. ANDE's regulatory framework (Ley 966/64 and amendments) does not currently provide formal residential prosumer rights. Business and industrial users can negotiate direct ANDE contracts for larger solar installations. The government's Plan Nacional de Energía and MOPC (Ministry of Public Works) have targeted rural electrification using solar, particularly in the Chaco interior where grid extension costs are prohibitive across the vast, sparsely populated territory.

Example

Ramón — Chaco off-grid ranch, 8kWp replacing diesel

Ramón owns an estancia (ranch) in the Paraguayan Chaco near Filadelfia. The property is not connected to the ANDE grid and relies on a diesel generator. He installs an 8kWp solar + battery system.

Location / PSHFiladelfia (Chaco), 5.5 PSH
System size8 kWp
ModeOff-grid — diesel replacement
Diesel equiv. rate₲ 2,500/kWh

Result

Annual production~12,848 kWh/yr
Production per kWp~1,606 kWh/kWp/yr
Annual savings (vs diesel)~₲ 30,510,000/yr
System cost range₲ 56,000,000 – 80,000,000
Payback~2.2 years
25-year net savings~₲ 696,250,000

The Chaco off-grid case is compelling: Filadelfia's 5.5 PSH and high diesel costs produce a payback under 3 years. A 8kWp system with a 20–30 kWh LiFePO4 battery bank provides reliable 24/7 power for a Chaco ranch. Cattle operations, water pumps, refrigeration, and staff housing all benefit. The Chaco's extremely flat terrain and clear skies are ideal for solar, with minimal shading concerns.

FAQ

Paraguay's ANDE electricity is among the world's cheapest — approximately PYG 350–700/kWh (~$0.05–0.10/kWh) due to massive Itaipu hydropower capacity. The country generates far more electricity than it uses and sells the surplus to Brazil. This very cheap grid power means grid-connected solar takes 15–20 years to pay back, even with Paraguay's excellent 5.0–5.5 PSH sunshine. Solar makes strongest economic sense for off-grid Chaco properties (replacing diesel), for backup power, or for properties far from the ANDE grid.
As of 2026, Paraguay does not have a formal residential net metering scheme under ANDE. A proposed net metering law has been discussed in the Paraguayan National Congress but has not been enacted. Grid-connected solar currently provides only self-consumption savings — surplus exported to the grid receives no compensation. If and when net metering is enacted, it would significantly improve the economics of urban solar installations in Asunción and other major cities. Monitor ANDE and MOPC announcements for updates.
The Paraguayan Chaco is one of the most compelling solar markets globally for off-grid applications. Filadelfia (5.5 PSH) has outstanding solar resources, the terrain is flat (no shading), and the region is sparsely populated with properties often far from ANDE grid lines. Ranches (estancias), Mennonite colonies, and rural communities rely on diesel generators — at ~PYG 2,500/kWh, dramatically more expensive than ANDE grid power. Solar + LiFePO4 battery systems pay back in 2–5 years when replacing diesel. Water pumping, refrigeration for meat and dairy, and staff accommodation are the key loads.
Installed solar costs in Paraguay run approximately PYG 7,000,000–10,000,000/kWp (~$950–1,360/kWp). A 5kWp home system costs PYG 35,000,000–50,000,000 (~$4,750–6,800). Equipment is primarily imported from China (panels, inverters) and Brazil (cables, mounting). Local solar installers operate mainly in Asunción, Ciudad del Este, and Encarnación. For Chaco installations, expect additional logistics costs for remote delivery. Paraguay's IVA (VAT) of 10% applies to most solar installation services.
The Mennonite colonies around Filadelfia (Fernheim, Menno, Neuland) have been early adopters of solar energy in the Chaco, driven by practical engineering culture and the need for reliable off-grid power across vast agricultural operations. Large-scale solar arrays (50–500kWp) power colony cooperatives, factories, grain storage, and irrigation pumps. The colonies also export some surplus to neighboring communities. This practical track record demonstrates that Chaco solar is highly reliable, with clear skies, minimal dust compared to arid regions, and consistent seasonal production patterns. Annual yield of ~1,600 kWh/kWp is typical.

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