Tangible Assets as a Hedge Against Inflation in 2026: Which Tangible Assets Offer Real Protection—and Why Solar Power Fills the Gap
Inflation is back at 2.8%; overnight money market rates are negative in real terms relative to the market average; the ECB raised rates in June 2026 for the first time since 2023: In 2026, tangible assets are a must for preserving value. Anyone who objectively compares gold, real estate, bonds, and solar power will see that not every asset class provides real protection against inflation.
The short answer
In 2026, real assets will perform very differently as a hedge against inflation. Gold is a crisis hedge with no cash flow and is currently highly volatile; residential real estate often yields a net return of only 0–2% in real terms; traditional bonds offer no protection at all; and savings accounts are systematically losing purchasing power relative to the market average. Commercial solar power fills this gap: 6–10% gross return per year, inflation indexation via the electricity price (approximately +3.8% CAGR since 2000), and a tax advantage under Section 7g of the German Income Tax Act (EStG) allowing for up to 72.5% depreciation over two years. The window of opportunity expires on the CfD deadline of July 17, 2027.
This article is intended for investors in Germany who want to protect their assets from inflation in 2026—particularly private investors with approximately €100,000 or more in equity, high-net-worth entrepreneurs with a marginal tax rate of 42% or higher, and anyone seeking a real-asset investment strategy that generates regular income. It compares gold, real estate, bonds, stock ETFs, Bitcoin, and solar power in terms of their protection against inflation in 2026—using return figures from primary sources, the current interest rate environment, and purchasing power calculations over 10 and 20 years—and shows this target group specifically which asset classes provide real protection and which merely appear conservative. For companies that want to use their own roof space, the funnel begins on the page about installing your own PV system for your business.
1. What exactly does “inflation protection through tangible assets” mean?
Tangible Assets and Protection Against Inflation — A Brief Definition: Tangible assets are physical goods with their own inherent material value; the physical asset retains its value even if the nominal currency loses purchasing power. Among the most important tangible assets are real estate, precious metals such as gold, stocks as shares in real companies, commodities such as oil, as well as art and collectibles, which can retain their value but require specialized knowledge. Protection against inflation refers to an investment’s ability to maintain its purchasing power despite rising prices. Tangible assets offer this protection because their price is linked to economic development and tends to rise in tandem with inflation—however, there is no guaranteed protection against inflation over short periods of time. Cash and savings account balances, on the other hand, immediately lose purchasing power during inflation.
Fiat Money vs. Commodity Money: The Bundesbank's Division
The key question is not “Is it a tangible asset?” but rather “What mechanism drives up its value or cash flow in line with inflation?” For residential real estate, it’s rent increases and index-linked rents; for gold, it’s the scarcity and crisis premium; for stocks, it’s companies’ pricing power; and for commercial solar power, it’s the price of electricity. Where this mechanism is absent (traditional nominal bonds, savings deposits, cash), there is no real protection against inflation—even if the investment appears conservative.
The advantage of tangible assets becomes apparent over longer holding periods, during which the respective hedging mechanism can take effect—in the short term, they can fluctuate just like any other investment.
What is the real gross return on assets?
In 2026, premium investors won’t be looking for safety, but rather for real returns after taxes and inflation. With an inflation rate of 2.8%, a flat tax of 26.375%, and a top marginal tax rate of up to 47.475%, a gross return of 3% isn’t enough. Real wealth preservation starts at around 4–5% gross per year—over the market average, overnight deposits, time deposits, savings accounts, and ten-year German government bonds all fall short of this threshold. This is where it is determined whether an investment strategy preserves wealth or passively accepts the erosion of its value.
How to Protect Yourself from Inflation in 2026
Anyone who wants to effectively protect themselves against inflation should evaluate each asset class based on three criteria: a genuine inflation mechanism (linking price or cash flow to inflation), a current yield, and the net tax impact. Based on these three criteria, we’ll determine below which tangible asset will provide real protection in 2026—and which will only offer a conservative return.
2. Inflation in 2026: The Investment Landscape in Plain Language
Key Data on Price Trends in the Summer of 2026
These key figures form the basis of any sound financial planning:
- Inflation rate in Germany for July 2026: preliminary figure of 2.8% year-over-year (Destatis, July 30, 2026); final figure for June 2026: 2.3%
- Core inflation (excluding energy and food) for July 2026: 2.4%; energy prices +8.3%
- ECB deposit rate: 2.25% (decision on June 11, 2026, effective June 17, 2026, +25 basis points — first increase since September 2023; interest rate pause confirmed for July 23, 2026)
- Overnight deposit accounts: Market average around 1.95%, top promotional rates up to about 3.4–3.5%
- Top 1-Year Fixed-Term Deposit: About 3.5–3.6%
- 10-year German government bond: approx. 3.20% (German Federal Finance Agency, as of the end of July 2026)
- Bundesbank Inflation Projection: 2.9% (2026) and 2.7% (2027) — June 2026 Projection
- Real return on overnight deposits (after taxes and inflation, market average): negative (approx. −1.4%)
Why inflation in 2026 is structural
The cause is not purely cyclical, but structural: high global government debt, pressure from energy prices, the expansionary money supply of the past decade, decarbonization investments, and the Infrastructure Special Fund (€500 billion). The Bundesbank, the ECB, and the market generally expect inflation rates to be around or slightly above the 2% target—hyperinflation is not on the horizon, but creeping currency devaluation of 2–3% per year has a strongly erosive effect over two decades. To put this in context: At the height of the energy crisis, the rate of price increases in the euro area peaked at 10.6% in October 2022—inflation is far from that level today, but the structural drivers remain. Furthermore, experience shows that an expansion of the money supply has a delayed impact on prices: the monetary excess of the past decade is taking effect with a lag.
What 2.8% inflation actually means for €100,000
Anyone who keeps their cash in demand deposits and time deposits in 2026 will lose purchasing power annually in real terms at the market average—for €100,000, that amounts to a cumulative loss of about €8,000 over ten years. With 4% inflation, the loss would be about €16,500. Anyone who does not take active steps to counteract this is accepting currency devaluation as a silent loss of wealth.
3. Gold and Precious Metals: A Crisis Hedge Without Cash Flow
How Gold Really Works as a Hedge Against Inflation
Gold does not react directly to the inflation rate, but rather to real interest rates, a loss of confidence in fiat currencies, and crises. It gains value during periods of negative real interest rates; during periods of high real interest rates (1980–2001), the price of gold stagnated in nominal terms over 20 years and lost massive value in real terms. Over the past 20 years, gold has yielded an annualized return of around 10–12% p.a. (depending on the source and currency)—a strong long-term store of value, but one without current income and with high volatility. The 28% correction within just a few months in 2026 clearly illustrates this volatility. Anyone who holds gold as “insurance in the form of a tangible asset” is essentially purchasing a crisis option with an opportunity cost equal to the yield on German government bonds (approx. 3.20%).
Structural Disadvantages of Gold for Ongoing Wealth Preservation
- No income — no dividends, no interest, no rent
- Spread and storage: 2–5% — actual costs charged by banks and precious metal dealers
- High volatility — Drawdowns of 30–40% have not been unusual historically; this can currently be observed in real time
- Indirect response to inflation — does not provide protection in every phase of inflation
For premium portfolios, gold remains a sensible addition as a tangible asset, representing 5–10% of the portfolio. High-net-worth family offices typically hold gold and other precious metals as a hedge against tail risk, not as a core asset for preserving wealth. The fact that central banks have been increasingly buying gold instead of government bonds in recent years provides structural support for the price—but does nothing to address the lack of current income.
Bitcoin as "digital gold" — not a reliable hedge against inflation in 2026
Bitcoin is occasionally touted as “digital gold”—the argument that its money supply is limited is mathematically correct, but market behavior is dominated by speculative cycles, not inflation expectations. Drawdowns of over 70% make Bitcoin unsuitable as a reliable hedge for savers—it remains a speculative investment, comparable to a tech stock, not a precious metal.
4. Real Estate as a Hedge Against Inflation: Trend Reversal Reached, Net Return Narrow
Factors that reduce the gross rental yield of 3.56%
- Additional purchase costs: 9–13% — Real estate transfer tax: 3.5% (Bavaria, Saxony) to 6.5% (North Rhine-Westphalia, Brandenburg, Saarland, Schleswig-Holstein); notary and land registry fees: approx. 2%; real estate agent’s commission: 3.57% (if applicable)
- 10-year construction loan rates for 2026: approximately 3.5–4.3% (market range from standard to prime rates) — making traditional leverage unprofitable in the top 7 locations
- GEG Renovation Obligations — Energy Efficiency Requirements, the Threat of Stranded Assets in Existing Buildings
- Rent Control and the Indexed Rent Dispute — Regulatory Risk That Could Politically Cap Inflation Indexation
- Low liquidity — Time to market: 13–23 weeks
- Concentration Risk — A Single Property Poses a Massive Concentration Risk
Appreciation in value and rent increases as a hedge against inflation
Over the longer term, the German housing price index has risen by about 50% since 2015 (Destatis, base year 2015 = 100), though with a correction in 2022–2024. Housing provides protection against inflation through two channels: appreciation in value and rent increases (vdp new-contract rents for multi-family dwellings most recently around +3.5%). Both mechanisms are at work—but they do not provide inflation protection on their own if the gross yield is already close to the inflation rate. Residential real estate offers partial inflation protection in 2026: it yields a positive real return for owner-occupied properties in prime micro-locations, while for a typical rental property financed with debt, it often merely keeps pace with inflation.
Real Estate Investment Funds and AIFs as Alternatives
Investors who gain broad exposure to the sector through open-ended real estate investment funds or closed-end AIFs incur additional management fees of 1.5–3% per year and shift the liquidity issue to the fund level. Closed-end AIFs tie up capital for 8–12 years, while open-end real estate funds have had stricter redemption terms since 2013 (24-month holding period, 12-month notice period). Diversification is achieved—but the return problem remains unresolved, because management fees offset the benefits of diversification.
5. Bonds: Nominal yield is okay, but the real yield is questionable
Why Bond Buyers Could Still Come Out Ahead in 2026
- Price gains amid falling interest rates — speculation on future interest rate cuts, not protection against inflation
- Central Bank Backstop — The ECB Steers the Course in an Emergency
- Yield Curve Normalization — Average Run Times (5 Years) Become More Attractive as the Inversion Eases
Inflation-Indexed Federal Bonds (Linkers) Put to the Test
Federal ILBs (Linker) are the only type of bond that theoretically offers protection against inflation. In practice in 2026: real returns are very low (typically 0.5–1.0%), liquidity is low, and the tax on inflation adjustments substantially reduces the protection. For institutional investors, they are a niche investment component; for retail investors, they are hardly accessible through savings plans.
Corporate bonds and high-yield bonds: Not tangible assets
Investment-grade corporate bonds yield about 2.7% per year over medium-term maturities. High-yield bonds yield 5–7% but carry a significantly higher risk of default—involving the assumption of credit risk and offering no protection against inflation through real assets. In 2026, bonds should be included in every diversified portfolio as a liquidity buffer, not as a hedge against inflation.
6. Solar Power: The Only Tangible Asset with Built-in Electricity Price Indexation
Here's how photovoltaic systems provide protection against inflation in practice
Investments in energy and infrastructure are generally considered an effective hedge against inflation because their returns are linked to real, inflation-sensitive indicators—and in the case of photovoltaics, this link is particularly direct. According to the BDEW electricity price analysis, the German household electricity price rose from 13.94 ct/kWh (2000) to around 37.0 ct/kWh (2026)—corresponding to an average annual increase (CAGR) of approximately 3.8% over the entire period. It is precisely this long-term price curve that serves as the inflation-hedging mechanism: Every future increase in the electricity price automatically increases the value of the kilowatt-hour generated, without the investor having to take any action. This linkage to electricity prices is anchored both physically and contractually—it is not a market psychology effect like with gold, not a discussion of index-linked rents like with real estate, and not purely dependent on central banks like with bonds. It is the structural difference that sets photovoltaics apart from all other tangible assets in this analysis.
Regulatory-backed cash flow over 20 years
Systems commissioned by December 31, 2026, are eligible for 20 years of EEG grandfathering with a fixed market premium; the rate of reduction is approximately 1% per half-year. The typical gross return on commercial rooftop systems of 100 kWp or more is 6–10% per year before taxes (Helm Group, 2024 portfolio data); with tax benefits, the effective return is 10–12%. System costs for commercial rooftop installations: approximately 800–1,300 €/kWp net, turnkey (30–100 kWp) or 700–1,100 €/kWp (100–500 kWp industrial rooftop, Fraunhofer ISE / BSW Solar). The LCOE range for commercial rooftop systems is 5.7–12.0 ct/kWh (Fraunhofer ISE), which is structurally well below the industrial electricity price. The current EEG rate and the degression mechanism are discussed in detail in the technical article on EEG remuneration for 2026.
The § 7g Tax Leverage Mechanism in Detail
The tax lever is the real game-changer when the marginal tax rate is 42% or higher:
- IAB pursuant to Section 7g(1) of the Income Tax Act (EStG): 50% of the estimated acquisition costs, up to a maximum of €200,000 per business
- Special depreciation under Section 7g(5) of the Income Tax Act (EStG): 40% of the tax base after the IAB deduction, spread over five years
- Declining-balance depreciation: 15% per year for PV systems and 30% per year for storage systems, valid through December 31, 2027
- Combined depreciation of up to 72.5% over two years (conservative method using straight-line depreciation; the maximum under the declining-balance method is approximately 77.5%)
Important to note: This rate is a two-year cumulative figure, not a first-year effect—the 50% IAB is already applicable in the year prior to the acquisition. With a marginal tax rate of 42% and an investment of €200,000, a cumulative depreciation of 72.5% (€145,000) corresponds to a tax savings of approximately €60,900 over both years. The exact amount depends on the individual tax rate, the date of acquisition, and the profit situation; a tax advisor should verify whether this applies to your specific situation. A detailed example can be found in the article on photovoltaics for freelancers.
The CfD time window until July 17, 2027
Market price risks are real—according to the Federal Network Agency, there were 573 hours of negative day-ahead prices in 2025—but they are mitigated by the EEG safety net and direct marketing models. Starting July 17, 2027, Regulation (EU) 2024/1747 requires member states to structure new feed-in tariff contracts as bilateral difference contracts with a clawback mechanism. On July 29, 2026, the Federal Cabinet also approved the government’s draft bill on the 2027 EEG reform, including the grid package: For new installations, the fixed feed-in tariff is to be eliminated and direct marketing will become mandatory. The draft is not yet legally binding—the Bundestag will begin deliberations in September 2026, and the details may still change during the legislative process. For existing plants, the following applies: Those that become operational by December 31, 2026, retain their entitlement to the unilateral market premium for 20 years. The cash flow profile that can be calculated today will no longer be available in this form for new plants starting in the summer of 2027. Regulatory details are covered in the article on the 2027 CfD requirement for PV investors.
7. Comparison Table: Seven Asset Classes Against Inflation
Brief definitions of the seven asset classes
- Stocks (stock ETFs such as the MSCI World): Equity investments with strong long-term real growth; protection against inflation comes from the pricing power of the companies included in the index, but this comes at the cost of high volatility. Over very long periods, stocks have historically generated the highest real returns and are considered one of the strongest components of inflation protection—unlike solar power, however, they do not provide a predictable recurring cash flow. A detailed comparison of returns is covered in the article “Solar Power as an Investment.”
- Real Estate (Top 7 Residential Properties): A traditional tangible asset; values and rents generally rise in line with inflation. Protection through appreciation and index-linked rents; offset by closing costs of 9–13% and pre-closing interest of 3.5–4.3%.
- Gold and other precious metals: A traditional hedge against crises—scarce commodities that cannot be produced at will, but which generate no ongoing cash flow and are currently highly volatile (down 28% from the January 2026 high).
- Inflation-indexed federal bonds (Linker): Directly linked to the consumer price index, providing automatic protection of purchasing power. Very low real yield in 2026 (0.5–1.0%), low liquidity — a niche investment.
- Bitcoin and other digital assets: Supply is mathematically capped at 21 million units; sometimes referred to as “digital gold.” Speculative market behavior; documented drawdowns of over 70% — not a reliable hedge against inflation.
- Call money and time deposits (savings accounts): Financial assets without inflation indexation — market average for call money around 1.95% (top promotional rates up to 3.4–3.5%), top rates for time deposits up to 3.5–3.6%. The market average is actually negative after taxes; only the best promotional rates barely break even. Provides a liquidity buffer, but offers no structural protection against inflation.
- Direct Investment in Photovoltaics (Commercial): A tangible asset with built-in inflation indexation via the electricity price (approximately +3.8% CAGR since 2000, BDEW). Gross return of 6–10% p.a., effectively 10–12% with § 7g tax leverage. The only asset class that offers cash flow, indexation, and tax leverage all at once.
| Criterion | Photovoltaics (commercial) | Gold (physical) | Top 7 Residential Properties | Equity ETF |
|---|---|---|---|---|
| Gross return per annum | 6–10% | Long-term: approx. 7% USD (highly volatile) | 3.0–3.6% rent + change in value | Approx. 9% nominal long-term |
| In real terms, after taxes and inflation | significantly positive with the tax lever | Positive in the long term, volatile in the short term | 0–2% net | Approx. 6–7% in real terms for those aged 15 and older |
| Inflation Mechanism | Electricity prices have risen by approximately +3.8% per year (CAGR) since 2000 (BDEW) | Shortages, crisis hedge | Indexed and graduated rents | Companies' Pricing Power |
| Volatility | low, stable cash flows | High; drawdown of −30% to −40% possible | low | High, drawdown of −57% in 2008 |
| Policy levers | IAB 50% + special depreciation 40% + declining-balance depreciation 15% | Speculation period: 12 months (Section 23 of the Income Tax Act) | Declining-balance depreciation for new construction: 5% (temporary) | Upfront Flat Fee (Base Interest Rate 3.20%) |
| Typical minimum bet | €100,000 equity | 100 € | Approx. €300,000 + additional costs | 25 € |
| Concentration risk | Location/Facility (can be diversified via the portfolio) | Focus on 1 asset | Single object = high | USA > 60% |
| Regulatory risk | CfD effective July 17, 2027, for new installations | low | high (GEG, rent control) | low |
| Sources: BDEW, BNetzA, Fraunhofer ISE, World Gold Council, vdp, JLL, Helm Group portfolio data for 2024. | ||||
Photovoltaics is the only asset class here that performs well across all three dimensions of inflation protection (cash flow, indexation, and tax leverage) simultaneously. Gold and equity ETFs are strong additions, each with one shortcoming (cash flow for gold, volatility for ETFs); residential real estate only delivers a real positive return in prime micro-locations. The following table compares these with fiat currencies and Bitcoin—the asset classes that will not offer reliable inflation protection in 2026.
| Criterion | 10-year German government bond | Call Deposits/Time Deposits | Bitcoin |
|---|---|---|---|
| Gross return per annum | 3,20 % | Average ~1.95%, up to 3.6% | extremely volatile, no expected value |
| In real terms, after taxes and inflation | slightly negative to zero | Ø negative, peak near zero | speculative |
| Inflation Mechanism | none (noun) | none | limited money supply (controversial) |
| Volatility | medium (duration) | very low | Extreme, drawdown > −70% |
| Policy levers | Withholding tax: 26.375% | Withholding tax: 26.375% | Speculation period: 12 months (Section 23 of the Income Tax Act) |
| Typical minimum bet | 1.000 € | 0 € | 10 € |
| Concentration risk | Federal credit rating | Bank default risk | 1 asset, highly concentrated |
| Regulatory risk | low | low | high (MiCA, bans) |
| Sources: German Finance Agency, ECB, DER AKTIONÄR/CHECK24, our own calculations. | |||
How to interpret the two tables together
This distinction follows the logic of real assets outlined in the first section: Table 1 shows real assets with an inflation adjustment mechanism, while Table 2 shows monetary assets without indexation, plus Bitcoin as a speculative addition. Those who want to protect their real wealth while generating ongoing income will find the only asset class with all three characteristics—cash flow, electricity price indexation, and tax leverage—in the far left column of Table 1: commercial solar power. For more on the mechanics of the various types of solar power systems—rooftop systems, ground-mounted systems, and agri-PV—see the overview of system types in the PV Investment section.
8. Loss of Purchasing Power: What €100,000 Will Be Worth in 10 and 20 Years
Required gross return for real capital preservation
With 2.5% inflation and a 26.375% withholding tax, a return of about 3.4% per year is needed; with a 42% marginal tax rate on business income, the figure is about 4.3% per year. Anyone who fails to reach this threshold loses purchasing power in real terms—no matter how conservative the investment may seem.
| Annual inflation | Purchasing power after 10 years | Purchasing power after 20 years | Loss over 20 years |
|---|---|---|---|
| 2,0 % | 82.035 € | 67.297 € | −32.703 € |
| 2,5 % | 78.120 € | 61.027 € | −38.973 € |
| 2,8 % | 75.870 € | 57.562 € | −42.438 € |
| 3,0 % | 74.409 € | 55.368 € | −44.632 € |
| 4,0 % | 67.556 € | 45.639 € | −54.361 € |
| Source: Own calculations. Assumption: Cash holdings earn no interest; figures are rounded. | |||
Four investment strategies in a 10-year test under conditions of high inflation
Specific example: €100,000 over 10 years with 2.8% inflation and a 26.375% tax on investment income, with sensitivity to persistently high inflation:
- Market average for overnight money is about 1.95% nominal → negative in real terms after taxes → noticeable loss of purchasing power after 10 years. With 4% inflation: approx. −16,500 €.
- 10-year German government bond 3.20% → slightly negative in real terms → purchasing power maintained at best. Clearly negative with 4% inflation.
- Top 7 Residential Properties (3.5% gross rent + moderate appreciation) → marginally positive in real terms after costs. With high inflation and rising construction interest rates, the leverage effect loses its impact.
- Commercial photovoltaics (7% gross + tax leverage at a marginal tax rate of 42%) → IRR on equity typically 9–12% p.a. → clearly positive in real terms. The link to electricity prices tends to have a stronger effect during periods of higher inflation.
For those who want to preserve their wealth in real terms while generating a steady income, commercial solar power will be an essential component of any investment strategy in 2026. The Pillar Photovoltaik Investment fund provides a comprehensive perspective within the broader investment landscape.
Consider a real-asset strategy that generates ongoing income
Anyone looking for a tangible asset in 2026 with built-in inflation indexing, a current gross return of 6–10% per annum, and effective tax leverage—and who also wants to benefit from grandfathering provisions protecting against the 2027 CfD reform—should go over the customized setup in a structured consultation. Logic Energy designs, builds, and operates the plants as a single-source provider; the contractual partner for direct investments is mediplan Helm e.K., which is subject to personal owner liability—no investment fund, no shell company, and no AIF with an anonymous KVG structure.
Plan Your Own Solar Power SystemInvest as a Capital Investor
Conclusion: Protect Your Assets from Inflation
When it comes to investing, broad diversification across multiple real assets is generally more sensible than concentrating on a single asset class—photovoltaics is therefore recommended as a central, but not the sole, component of a real-asset strategy. Based on the three criteria—inflation hedging, current income, and net tax impact—commercial solar power will emerge in 2026 as the only asset class to meet all three simultaneously; gold, stock ETFs, and residential real estate remain strong additions, each with one shortcoming. For concrete implementation and asset management, individual advice should take into account one’s personal tax and financial situation. With regard to grandfathering provisions prior to the CfD cutoff date of July 17, 2027, and the full tax leverage available under Section 7g of the German Income Tax Act (EStG), commissioning by December 31, 2026, is the decisive deadline.
Frequently Asked Questions (FAQ)
Is gold a better hedge against inflation than solar power in 2026?
Gold is a crisis hedge with no cash flow and is currently highly volatile (down 28% from its January 2026 high); commercial solar power generates a recurring gross return of 6–10% with electricity price indexation. For preserving wealth while generating income, solar power is structurally superior; gold serves as a tail-risk hedge, accounting for 5–10% of the portfolio.
Which asset will offer the highest real return in 2026?
After taxes and inflation, commercial PV direct investments achieve net IRRs of typically 9–12% per year over 20 years at a marginal tax rate of 42% or higher—combined with electricity price indexation that no other tangible asset offers in this form. Equity ETFs also deliver positive returns in real terms, but with high volatility and no predictable cash flow.
Will residential real estate still be a hedge against inflation in 2026?
Limited: Top-7 gross rental yields around 3.56%; after expenses, 1.5–2.5% net. With construction interest rates of 3.5–4.3%, leverage works only in premium micro-locations. Makes sense as a diversification strategy, but is too capital-intensive and illiquid to serve as the core of a €100,000 investment aimed at preserving wealth.
What exactly does "tangible asset" mean—and why aren't bonds considered one?
Real assets are tangible assets whose price or cash flow can rise in tandem with inflation—real estate, precious metals, stocks, production facilities, and commodities. Traditional nominal bonds are monetary assets: fixed amounts in euros whose purchasing power is eroded by inflation on a 1:1 basis. Only inflation-indexed bonds (Linkers) are, to some extent, analogous to real assets.
How does electricity price indexing work for solar power?
According to the BDEW, the price of electricity in Germany has risen by approximately 3.8% per year (CAGR) since 2000. PV systems that generate electricity for self-consumption and/or direct sales benefit structurally from this price increase. The EEG feed-in tariff (7.70 ct/kWh for partial feed-in ≤ 10 kWp, effective as of August 1, 2026) also serves as a safety net.
What will the real interest rate on overnight deposits and savings accounts be in the summer of 2026?
With a market average of around 1.95%, a withholding tax of 26.375%, and inflation at 2.8%, the real return is negative (approx. −1.4%). Traditional savings accounts with interest rates of 0.1–0.3% fall well below this—systematically eroding purchasing power. Only overnight and fixed-term deposits at the very top of promotional offers (around 3.4–3.6%) barely reach the zero mark after taxes, at best.
How much equity do I need for a direct investment in solar power?
Typical minimum investment amount is €100,000 in equity. With debt financing, investment amounts ranging from €200,000 to €500,000 are achievable; the investment allowance (IAB) of 50% up to €200,000 per business (Section 7g(1) of the Income Tax Act) takes full effect with this investment amount, provided that the profit threshold of €200,000 was not exceeded in the previous year.
What will happen to the EEG feed-in tariff after July 17, 2027?
Regulation (EU) 2024/1747 requires Member States, effective as of this effective date, to structure new support contracts as bilateral contracts for difference (CfDs) with a repayment mechanism in the event of high market prices. Facilities commissioned before the effective date retain the 20-year EEG grandfathering provision with a fixed market premium and no clawback.
References
- Destatis — Consumer Price Index and Inflation Rate (July 2026, preliminary: +2.8%; June 2026, final: +2.3%), accessed August 4, 2026
- German Bundesbank / ECB — Key Interest Rate Decisions 2026 (Deposit rate at 2.25% since June 17, 2026; pause confirmed on July 23, 2026)
- German Bundesbank — Germany Projection, June 2026 (HICP inflation: 2.9% in 2026, 2.7% in 2027)
- German Finance Agency — Yields on Federal Securities (10-year Bund approx. 3.20%, maturing in late July 2026)
- CHECK24 / DER AKTIONÄR — Comparison of Call Money and Time Deposits, August 2026 (Market average ~1.95%, top 3.4–3.6%)
- BDEW — Electricity Price Analysis 2026 (Residential electricity price approximately 37.0 ct/kWh, long-term time series since 2000)
- Federal Network Agency — EEG Feed-in Tariffs (7.70 ct/kWh for partial feed-in ≤ 10 kWp, valid August 1, 2026–January 31, 2027), accessed August 4, 2026
- Fraunhofer ISE — Study on Levelized Cost of Electricity for Renewable Energy (LCOE for commercial rooftop systems: 5.7–12.0 ct/kWh, July 2024)
- § 7g of the Income Tax Act (EStG) — Investment Deductions and Special Depreciation (50% investment deduction, 40% special depreciation, max. €200,000 per business)
- § 7 EStG — Depreciation Allowance / Declining-Balance Depreciation (15% per year for PV systems through December 31, 2027)
- § 23 EStG — Private Sales Transactions (12-Month Speculation Period for Physical Gold)
- Regulation (EU) 2024/1747 — EU Electricity Market Reform (Mandatory Contracts for Difference [CfD] Effective July 17, 2027)
- pv magazine — 2027 EEG Reform (Government Draft of the 2027 EEG + Grid Package, Cabinet Decision of July 29, 2026)
- Environmental Energy Law Foundation — CfD Obligation and Grandfathering (Legal Analysis of the EU Electricity Market Reform)
- Destatis — Housing Price Index (Residential Real Estate, Q1 2026: +1.4% YoY; approximately +50% since 2015)
- JLL — Residential Investment Market (Top gross rental yield in the top 7 cities: approximately 3.56%)
- vdp — Real Estate Price Index (Top 7 Residential Properties and New Lease Rents for Multi-Family Buildings)
- World Gold Council — Gold Outlook (Price Trends and Long-Term Returns)
- Finanztip — MSCI World Return (historical return of approximately 9% per year, nominal, in EUR)
- Helm Group / mediplan Helm e.K. — Portfolio Data 2024 (Gross return on commercial rooftop solar systems: 6–10% per annum before taxes, internal analysis)
Edited by Logic Energy. Last updated: August 2026.
